ORCID Profile
0000-0002-2337-676X
Current Organisation
Queensland University of Technology
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Nanomaterials | Functional Materials | Interdisciplinary Engineering not elsewhere classified | Nanotechnology | Nanotechnology not elsewhere classified | Nanoscale characterisation | Energy Generation, Conversion and Storage Engineering | Mechanical Engineering | Photodetectors, Optical Sensors and Solar Cells | Materials Engineering | Nanotechnology | Functional materials | Photonics optoelectronics and optical communications |
ANZSRC Socio-Economic Objective (SEO)
Energy Storage (excl. Hydrogen) | Industrial Chemicals and Related Products not elsewhere classified | Manufacturing not elsewhere classified | Expanding Knowledge in Technology | Renewable Energy not elsewhere classified | Solar-Photovoltaic Energy | Expanding Knowledge in the Chemical Sciences |
Related Links
Publications
Ultrahigh energy density supercapacitors through a double hybrid strategy
Publisher: Elsevier BV
Date: 09-2017
Self-assembly of stacked layers of Mn3O4 nanosheets using a scalable chemical strategy for enhanced, flexible, electrochemical energy storage
Publisher: Elsevier BV
Date: 09-2013
Functionalization of Polypyrrole Nanopipes with Redox‐Active Polyoxometalates for High Energy Density Supercapacitors
Publisher: Wiley
Date: 23-01-2017
Abstract: Hybrid materials are very attractive for the fabrication of high-performance supercapacitors. Here, we have explored organic-inorganic hybrid materials based on open-end porous 1 D polypyrrole nanopipes (PPy-NPipes) and heteropolyoxometalates (phosphotungstate ([PW
Hybrid core–shell nanostructured electrodes made of polypyrrole nanotubes coated with Ni(OH) 2 nanoflakes for high energy-density supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5RA23671A
Abstract: SEM image of Ni(OH) 2 @PPy-NTs core–shell nanostructure and galvanostatic charge/discharge curves of PPy-NTs, Ni(OH) 2 and Ni(OH) 2 @PPy-NTs nanostructures.
Morphological modulation of polypyrrole thin films through oxidizing agents and their concurrent effect on supercapacitor performance
Publisher: Elsevier BV
Date: 02-2014
Linker free synthesis of TiO2/Bi2S3 heterostructure towards solar cell application: Facile chemical routes
Publisher: Elsevier BV
Date: 02-2015
Synthesis, properties, and performance of nanostructured metal oxides for supercapacitors
Publisher: Walter de Gruyter GmbH
Date: 19-05-2014
Abstract: Beyond activated carbon and other forms of high-surface area carbon operating solely as double layer storage materials in capacitors of high capacitance commonly somewhat imprecisely called supercapacitors other electrode materials storing electric charge by reversible and fast superficial redox processes are studied as active masses. The resulting devices combining double layer and Faradaic process-based charge storage – commonly called hybrid ones – show significantly higher capacitances at only marginally diminished power capability. Among the suggested materials metal oxides feature most prominently. Their formation, characterization and properties together with the performance of prepared devices are reviewed here.
Promoter methylation of the Wnt/β-catenin signaling antagonistDkk-3is associated with poor survival in gastric cancer
Publisher: Wiley
Date: 02-12-2008
DOI: 10.1002/CNCR.23989
Abstract: Abnormal activation of the Wnt/beta-catenin signaling pathway is common and critical in the pathogenesis of digestive cancers. In this study, the authors investigated the promoter methylation of the dickkopf homolog 3 gene Dkk-3 in these cancers and its prognostic significance in gastric cancer. Dkk-3 methylation was assessed in 173 patients with gastric cancers (including 104 patients who were followed for up to 4090 days) and in 128 patients with colorectal cancer. Cell growth was evaluated by using a colony-formation assay. For survival analyses, the authors used Kaplan-Meier plots, the log-rank test, and Cox proportional regression. Dkk-3 was silenced or down-regulated in 12 of 17 gastric cancer cell lines (70.6%) and in 3 of 9 colon cancer cell lines (33.3%). The loss of gene expression was associated with promoter methylation, which could be restored by demethylating agents. Ectopic expression of Dkk-3 suppressed colony formation. Moreover, methylation of Dkk-3 was detected in 117 of 173 primary gastric tumors (67.6%) and in 67 of 128 colorectal tumors (52.3%). The clinical significance and the prognostic value of Dkk-3 methylation also were examined in 104 gastric cancers and in 84 colorectal cancers. Multivariate analysis indicated that Dkk-3 methylation was associated significantly and independently with poor disease survival (relative risk, 2.534 95% confidence interval, 1.54-4.17 P=.002) in gastric cancer, but not in colorectal cancer. Kaplan-Meier survival curves revealed that patients who had Dkk-3 methylated gastric cancers had a significantly shorter survival (median, 0.76 years) compared with patients who did not have Dkk-3 methylation (median, 2.68 years P<.0001 log-rank test). Epigenetic silencing of the Dkk-3 gene by promoter methylation was a common event in gastric cancer and was associated with a poor outcome in such patients.
Effect of Mn:(CuO/Cu(OH) 2) electrodes for supercapacitors application
Publisher: American Scientific Publishers
Date: 08-2015
Correction to: Mapping of dressed and processed poultry products in Bangladesh: Identifying the food safety risks for policy intervention
Publisher: Springer Science and Business Media LLC
Date: 18-07-2023
Controlled Growth of CoSx Nanostrip Arrays (CoSx‐NSA) on Nickel Foam for Asymmetric Supercapacitors
Publisher: Wiley
Date: 12-03-2014
Fundamentals of Binary Metal Oxide–Based Supercapacitors
Publisher: Elsevier
Date: 2017
Plant Extract Induced Biogenic Preparation of Silver Nanoparticles and Their Potential as Catalyst for Degradation of Toxic Dyes
Publisher: MDPI AG
Date: 16-12-2020
Abstract: This study focusses on the synthesis of silver nanoparticles (Ag-nPs) by citrus fruit (Citrus paradisi) peel extract as reductant while using AgNO3 salt as source of silver ions. Successful preparation of biogenic CAg-nPs catalyst was confirmed by turning the colorless reaction mixture to light brown. The appearance of surface Plasmon resonance (SPR) band in UV-Vis spectra further assured the successful fabrication of nPs. Different techniques such as FTIR, TGA and DLS were adopted to characterize the CAg-nPs. CAg-nPs particles were found to excellent catalysts for reduction of Congo red (CR), methylene blue (MB), malachite green (MG), Rhodamine B (RhB) and 4-nitrophenol (4-NP). Reduction of CR was also performed by varying the contents of NaBH4, CR and catalyst to optimize the catalyst activity. The pseudo first order kinetic model was used to explore the value of rate constants for reduction reactions. Results also interpret that the catalytic reduction of dyes followed the Langmuir–Hinshelwood (LH) mechanism. According to the LH mechanism, the CAg-nPs role in catalysis was explained by way of electrons transfer from donor (NaBH4) to acceptor (dyes). Due to reusability and green synthesis of the CAg-nPs catalyst, it can be a promising candidate for the treatment of water sources contaminated with toxic dyes.
Sprayed CdO thin films for liquefied petroleum gas (LPG) detection
Publisher: Elsevier BV
Date: 06-2009
Emergence of Ni‐Based Chalcogenides (S and Se) for Clean Energy Conversion and Storage
Publisher: Wiley
Date: 21-05-2021
Abstract: Nickel chalcogenide (S and Se) based nanostructures intrigued scientists for some time as materials for energy conversion and storage systems. Interest in these materials is due to their good electrochemical stability, eco‐friendly nature, and low cost. The present review compiles recent progress in the area of nickel‐(S and Se)‐based materials by providing a comprehensive summary of their structural and chemical features and performance. Improving properties of the materials, such as electrical conductivity and surface characteristics (surface area and morphology), through strategies like nano‐structuring and hybridization, are systematically discussed. The interaction of the materials with electrolytes, other electro‐active materials, and inactive components are analyzed to understand their effects on the performance of energy conversion and storage devices. Finally, outstanding challenges and possible solutions are briefly presented with some perspectives toward the future development of these materials for energy‐oriented devices with high performance.
The optical and electrical transport studies of ZnxCo1−xS thin films
Publisher: Springer Science and Business Media LLC
Date: 27-05-2016
Two‐Dimensional Materials for High‐Energy Solid‐State Asymmetric Pseudocapacitors with High Mass Loadings
Publisher: Wiley
Date: 20-11-2019
Abstract: A porous nanostructure and high mass loading are crucial for a pseudocapacitor to achieve a good electrochemical performance. Although pseudocapacitive materials, such as MnO
Changes in Crohn's disease phenotype over time in the Chinese population: Validation of the Montreal classification system
Publisher: Oxford University Press (OUP)
Date: 04-2008
DOI: 10.1002/IBD.20335
Abstract: Phenotypic evolution of Crohn's disease occurs in whites but has never been described in other populations. The Montreal classification may describe phenotypes more precisely. The aim of this study was to validate the Montreal classification through a longitudinal sensitivity analysis in detecting phenotypic variation compared to the Vienna classification. This was a retrospective longitudinal study of consecutive Chinese Crohn's disease patients. All cases were classified by the Montreal classification and the Vienna classification for behavior and location. The evolution of these characteristics and the need for surgery were evaluated. A total of 109 patients were recruited (median follow-up: 4 years, range: 6 months-18 years). Crohn's disease behavior changed 3 years after diagnosis (P = 0.025), with an increase in stricturing and penetrating phenotypes, as determined by the Montreal classification, but was only detected by the Vienna classification after 5 years (P = 0.015). Disease location remained stable on follow-up in both classifications. Thirty-four patients (31%) underwent major surgery during the follow-up period with the stricturing [P = 0.002 hazard ratio (HR): 3.3 95% CI: 1.5-7.0] and penetrating (P = 0.03 HR: 5.8 95% CI: 1.2-28.2) phenotypes according to the Montreal classification associated with the need for major surgery. In contrast, colonic disease was protective against a major operation (P = 0.02 HR: 0.3 95% CI: 0.08-0.8). This is the first study demonstrating phenotypic evolution of Crohn's disease in a nonwhite population. The Montreal classification is more sensitive to behavior phenotypic changes than is the Vienna classification after excluding perianal disease from the penetrating disease category and was useful in predicting course and the need for surgery.
Ag/AgCl@MIL-88A(Fe) heterojunction ternary composites: towards the photocatalytic degradation of organic pollutants
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0DT03147J
Abstract: We have demonstrated the photocatalytic efficiency of the Ag/AgCl@MIL-88A(Fe) composite for the degradation of organic dyes and p -nitrophenol in water.
Morphological modification of CdSe0.6Te0.4 nanostructures by electron irradiation and the effect on photoelectrochemical cells
Publisher: Springer Science and Business Media LLC
Date: 18-10-2016
Long-term follow-up of ulcerative colitis in the Chinese population
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 03-02-2009
DOI: 10.1038/AJG.2008.74
Abstract: The incidence of ulcerative colitis (UC) in Asia is increasing but reports on its long-term course are few. We set out determine the incidence, prevalence, and survival rate of UC in the Chinese population and phenotypic stability by longitudinal follow-up. A cohort of Chinese UC patients were followed up in a tertiary referral center in Hong Kong between 1985 and 2006. Clinical data were prospectively collected since 2001. Population statistics were obtained from the Census and Statistics Department of Hong Kong for the calculation of age-specific incidence, prevalence, and survival. The disease phenotypes at diagnosis and upon follow-up were documented. A total of 172 patients (51.7% men) with a median age at diagnosis of 37.0 years (range: 12.0-85.0) were included. The cohort was observed for a total of 1,393 person-years with a median follow-up duration of 7.0 years (range: 0.5-22.0). The age-standardized incidence and prevalence rates of UC per 100,000 were 2.1 (95% confidence interval, CI: 1.1-3.7) and 26.5 (95% CI: 22.6-30.9), respectively, in 2006. The 10-year cumulative rate of proximal extension was 23.8%. Only one patient developed colorectal cancer during the observation period. The cumulative colectomy rates were 2.4% and 7.6% at 1 and 10 years of follow-up. Overall survival was similar to that expected (P=0.07). The incidence of UC has increased sixfold in the past two decades in Hong Kong. The complication, colorectal cancer, and colectomy rates are low in Chinese patients but increase with duration of illness.
A novel chemical synthesis and characterization of Mn3O4 thin films for supercapacitor application
Publisher: Elsevier BV
Date: 05-2010
A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies
Publisher: Elsevier BV
Date: 11-2017
High carbon utilization
Publisher: Elsevier BV
Date: 11-2022
Large scale flexible solid state symmetric supercapacitor through inexpensive solution processed V2O5 complex surface architecture
Publisher: Elsevier BV
Date: 07-2017
Simple Method for Estimating the Surface Area of Layered Graphene‐Based Thin Films
Publisher: Wiley
Date: 17-10-2019
Abstract: Thin films, papers, or foils produced from graphene-based materials have been the focus of considerable research interest in recent years. They have a range of applications including energy storage, selective filtration of liquids, and gas storage. For all of these applications, the critical attribute of the films is their pore volume. However, there remains a considerable challenge around characterizing the accessible microscopic surface area of the materials in their intended state of application. In this work, an image-processing-based approach is presented for estimating the lower threshold of specific surface area for graphene-based films that have a typical multilayered structure. Canny edge detection is used together with tortuosity measurements to infer sheet areas from layer edges. The method serves as a simple independent characterization technique. Specific surface area values predicted for a range of similar films vary by less than 4× the reported values, which vary by >1.1×10
Subcongenic Analyses Reveal Complex Interactions between Distal Chromosome 4 Genes Controlling Diabetogenic B Cells and CD4 T Cells in Nonobese Diabetic Mice
Publisher: The American Association of Immunologists
Date: 08-2012
Abstract: Autoimmune type 1 diabetes (T1D) in humans and NOD mice results from interactions between multiple susceptibility genes (termed Idd) located within and outside the MHC. Despite sharing ∼88% of their genome with NOD mice, including the H2g7 MHC haplotype and other important Idd genes, the closely related nonobese resistant (NOR) strain fails to develop T1D because of resistance alleles in residual genomic regions derived from C57BLKS mice mapping to chromosomes (Chr.) 1, 2, and 4. We previously produced a NOD background strain with a greatly decreased incidence of T1D as the result of a NOR-derived 44.31-Mb congenic region on distal Chr. 4 containing disease-resistance alleles that decrease the pathogenic activity of autoreactive B and CD4 T cells. In this study, a series of subcongenic strains for the NOR-derived Chr. 4 region was used to significantly refine genetic loci regulating diabetogenic B and CD4 T cell activity. Analyses of these subcongenic strains revealed the presence of at least two NOR-origin T1D resistance genes within this region. A 6.22-Mb region between rs13477999 and D4Mit32, not previously known to contain a locus affecting T1D susceptibility and now designated Idd25, was found to contain the main NOR gene(s) d ening diabetogenic B cell activity, with Ephb2 and/or Padi2 being strong candidates as the causal variants. Penetrance of this Idd25 effect was influenced by genes in surrounding regions controlling B cell responsiveness and anergy induction. Conversely, the gene(s) controlling pathogenic CD4 T cell activity was mapped to a more proximal 24.26-Mb region between the rs3674285 and D4Mit203 markers.
Design and Fabrication of Printed Paper‐Based Hybrid Micro‐Supercapacitor by using Graphene and Redox‐Active Electrolyte
Publisher: Wiley
Date: 22-05-2018
Abstract: Inspired by future needs of flexible, simple, and low-cost energy storage devices, smart graphene-based micro-supercapacitors on conventional Xerox paper substrates were developed. The use of redox-active species (iodine redox couple) was explored to further improve the paper device's performance. The device based on printed graphene paper itself already had a remarkable maximum volumetric capacitance of 29.6 mF cm
Highly Stable Cycling of Silicon-Nanographite Aerogel-Based Anode for Lithium-Ion Batteries
Publisher: American Chemical Society (ACS)
Date: 03-2021
Self-Assembly and Cross-Linking of Conducting Polymers into 3D Hydrogel Electrodes for Supercapacitor Applications
Publisher: American Chemical Society (ACS)
Date: 13-12-2020
Back-integration of recovered graphite from waste-batteries as ultra-high capacity and stable anode for potassium-ion battery
Publisher: Wiley
Date: 27-12-2022
Abstract: The rapid growth of lithium‐ion batteries (LIBs) in many markets from portable electronics to large scale electric vehicles makes it increasingly urgent to address recycling of strategic materials from used batteries. Herein, we report the excellent electrochemical performance of recycled graphite (REG) from spent LIBs, which was successfully employed as an anode in potassium‐ion batteries (KIBs). The graphite‐anode not only delivers highly reversible capacity of 361.4 mAh g −1 (at 0.1 C) but also demonstrates good long‐term cycling stability. The phase evolution of electrochemically potassium intercalated/deintercalated REG electrodes is elucidated using in‐situ X‐ray diffraction. The well‐preserved structure of the recycled graphite makes it ideal host for reversible intercalation and de‐intercalation of K‐ions. Furthermore, a potassium‐hybrid capacitor was fabricated by coupling the recycled graphite with textile waste‐derived activated carbon as cathode material. The cell demonstrates considerable energy density of 84.5 Wh kg −1 and power density of 400 W kg −1 , respectively. Apart from the great electrochemical performances, the low‐cost, abundant, and sustainable recycled graphite in this work will help to address the challenges in Li‐ion battery recycling and show the prospects of next‐generation battery system development.
Porous polypyrrole clusters prepared by electropolymerization for a high performance supercapacitor
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM14470K
Fuzzy nanofibrous network of polyaniline electrode for supercapacitor application
Publisher: Elsevier BV
Date: 03-2010
Molybdenum Nitride Nanocrystals Anchored on Phosphorus-Incorporated Carbon Fabric as a Negative Electrode for High-Performance Asymmetric Pseudocapacitor
Publisher: Elsevier BV
Date: 06-1998
Electronic impurities (Fe, Mn) doping in CdSe nanostructures for improvements in photoelectrochemical applications
Publisher: Royal Society of Chemistry (RSC)
Date: 27-06-2014
DOI: 10.1039/C4RA02791D
True Meaning of Pseudocapacitors and Their Performance Metrics: Asymmetric versus Hybrid Supercapacitors
Publisher: Wiley
Date: 06-08-2020
Large interspaced layered potassium niobate nanosheet arrays as an ultrastable anode for potassium ion capacitor
Publisher: Elsevier BV
Date: 2021
Nanostructured mixed transition metal oxides for high performance asymmetric supercapacitors: Facile synthetic strategy
Publisher: Elsevier BV
Date: 04-2017
Structural, optical, and photo-electrochemical properties of marygold-like CdSe0.6Te0.4 synthesized by electrochemical route
Publisher: Elsevier BV
Date: 09-2014
Pretreatment and fermentation of lignocellulosic biomass: reaction mechanisms and process engineering
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0RE00241K
Abstract: At a time of rapid depletion of oil resources, global food shortages and solid waste problems, it is imperative to encourage research into the use of appropriate pre-treatment techniques using regenerative raw materials such as lignocellulosic biomass.
Potentiodynamic polarization assisted phosphorus-containing amorphous trimetal hydroxide nanofibers for highly efficient hybrid supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TA13225B
Abstract: A potentiodynamic polarization approach is presented for the preparation of battery-type phosphorus-containing amorphous trimetal nickel–ruthenium–cobalt hydroxide nanofibers for high-energy hybrid supercapacitors.
Effect of electron beam irradiation on electro synthesized hexagonal Cd 0.3 Zn 0.7 S nanosphere with excellent application in solar cell
Publisher: Elsevier BV
Date: 04-2016
Enhancing Mechanical Energy Transfer of Piezoelectric Supercapacitors
Publisher: Wiley
Date: 23-09-2021
Abstract: The expected widespread use of wearable and other low‐power healthcare devices has triggered great interest in piezoelectric materials as a promising energy harvester. However, traditional piezoelectric materials suffer from poor interfacial energy transfer when used in self‐charging power cells. Herein, piezoelectric supercapacitors (PSCs) are engineered using MXene‐incorporated polymeric piezo separator and MXene (Ti 3 C 2 T x ) multilayered sheets as electrodes. The MXene‐blended polymer film showed considerable improvement with maximum output voltage of 28 V and current of 1.71 µA. The electromechanical properties studied by piezoelectric force microscopy suggest that the integration of MXene in polyvinylidene fluoride (PVDF) matrix induces the degree of dipole moment alignment, thereby improving the piezoelectric properties of PVDF. At the device level, the PSC featured the capacitance of 61 mF cm –2 , the energy density of 24.9 mJ cm −2 , the maximum power density of 1.3 mW cm −3 , and the excellent long‐term cycling stability. A way is paved toward green, integrated energy harvesting and storing technology for next‐generation self‐powered implantable and wearable electronics.
Supercapacitors based on electrochemically deposited polypyrrole nanobricks
Publisher: Elsevier BV
Date: 09-2011
Coronary artery disease and cardiovascular outcomes in patients with non-alcoholic fatty liver disease
Publisher: BMJ
Date: 20-05-2011
Abstract: Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic syndrome and is associated with cardiovascular risk. The aim of this study was to determine the role of fatty liver in predicting coronary artery disease and clinical outcomes in patients undergoing coronary angiogram. This was a prospective cohort study carried out in a University hospital. Consecutive patients who underwent coronary angiogram had ultrasound screening for fatty liver. Significant cardiovascular disease was defined as ≥50% stenosis in at least one coronary artery. The primary outcome was a composite end point comprising cardiovascular deaths, non-fatal myocardial infarction and the need for further coronary intervention during prospective follow-up. Among 612 recruited patients, 356 (58.2%) had fatty liver by ultrasonography, 318 (52.0%) had elevated serum alanine aminotransferase and 465 (76.0%) had significant coronary artery disease. Coronary artery disease occurred in 84.6% of patients with fatty liver and 64.1% of those without fatty liver (p<0.001). After adjusting for demographic and metabolic factors, fatty liver (adjusted OR 2.31 95% CI 1.46 to 3.64) and alanine aminotransferase level (adjusted OR 1.01 95% CI 1.00 to 1.02) remained independently associated with coronary artery disease. At a mean follow-up of 87±22 weeks, 30 (10.0%) patients with fatty liver and 18 (11.0%) patients without fatty liver reached the composite clinical end point (p=0.79). In patients with clinical indications for coronary angiogram, fatty liver is associated with coronary artery disease independently of other metabolic factors. However, fatty liver cannot predict cardiovascular mortality and morbidity in patients with established coronary artery disease.
Solution-processed CdS quantum dots on TiO 2 : light-induced electrochemical properties
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA14275C
Abstract: Schematic of CdS-sensitized mesoporous TiO 2 nanoparticles thin films along with their energy level diagram.
Temperature Dependence of Cationic and Anionic Precursor on Morphological Improvement of CuO Electrodes and Its Consequent Effect on Electrochemical Supercapacitive Properties
Publisher: American Scientific Publishers
Date: 08-2015
A novel chemical synthesis of interlocked cubes of hausmannite Mn3O4 thin films for supercapacitor application
Publisher: Elsevier BV
Date: 09-2009
Direct growth of FeCo2O4 nanowire arrays on flexible stainless steel mesh for high-performance asymmetric supercapacitor
Publisher: Springer Science and Business Media LLC
Date: 08-2017
DOI: 10.1038/AM.2017.145
Porous CuO nanosheet clusters prepared by a surfactant assisted hydrothermal method for high performance supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA43254H
Plasma-Polymerized and Iodine-Doped Polyvinyl Acetate for Volatile Organic Compound Gas Sensing Applications
Publisher: American Chemical Society (ACS)
Date: 28-02-2023
Ni2P2O7 micro-sheets supported ultra-thin MnO2 nanoflakes: A promising positive electrode for stable solid-state hybrid supercapacitor
Publisher: Elsevier BV
Date: 10-2019
High energy superstable hybrid capacitor with a self‐regulated Zn/electrolyte interface and 3D graphene‐like carbon cathode
Publisher: Wiley
Date: 24-07-2022
DOI: 10.1002/INF2.12344
Abstract: Rechargeable aqueous zinc ion hybrid capacitors (ZIHCs), as an up‐and‐comer aqueous electrochemical energy storage system, endure in their infancy because of the substandard reversibility of Zn anodes, structural deterioration of cathode materials, and narrow electrochemical stability window. Herein, a scalable approach is described that addresses Zn‐anode/electrolyte interface and cathode materials associated deficiencies and boosts the electrochemical properties of ZIHCs. The Zn‐anode/electrolyte interface is self‐regulated by alteration of the traditional Zn 2+ electrolyte with Na‐based supporting salt without surrendering the cost, safety, and green features of the Zn‐based system which further validates the excellent reversibility over 1100 h with suppressed hydrogen evolution. The deficits of cathode materials were overcome by using a high‐mass loaded, oxygen‐rich, 3D, multiscaled graphene‐like carbon (3D MGC) cathode. Due to the multiscaled texture, high electronic conductivity, and oxygen‐rich functional groups of 3D MGC, reversible redox capacitance was obtained with a traditional adsorption/desorption mechanism. Prototype ZIHCs containing the modified electrolyte and an oxygen‐rich 3D MGC cathode resulted in battery‐like specific energy (203 Wh kg −1 at 1.6 A g −1 ) and supercapacitor‐type power capability (4.9 kW kg −1 at 8 A g −1 ) with outstanding cycling durability (96.75% retention over 30 000 cycles at 10 A g −1 ). These findings pave the way toward the utilization of highly efficient ZIHCs for practical applications. image
Bifunctional nanoparticulated nickel ferrite thin films: Resistive memory and aqueous battery applications
Publisher: Elsevier BV
Date: 03-2021
Simple route for the synthesis of supercapacitive Co–Ni mixed hydroxide thin films
Publisher: Elsevier BV
Date: 05-2012
Electrodeposited nanosphere like CdxZn1-xS electrodes for photoelectrochemical cell
Publisher: Springer Science and Business Media LLC
Date: 05-02-2016
Hydrophilic polyaniline nanofibrous architecture using electrosynthesis method for supercapacitor application
Publisher: Elsevier BV
Date: 05-2010
Significant improvement in the electrochemical performances of nano-nest like amorphous MnO2 electrodes due to Fe doping
Publisher: Elsevier BV
Date: 2013
Covalent Graphene‐MOF Hybrids for High‐Performance Asymmetric Supercapacitors
Publisher: Wiley
Date: 04-12-2020
Surfactant assisted electrodeposition of MnO2 thin films: Improved supercapacitive properties
Publisher: Elsevier BV
Date: 10-2011
Hierarchical nickel-cobalt sulfide/niobium pentoxide decorated green carbon spheres toward efficient energy storage
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2SE00263A
Abstract: Progression in the renewable energy field is tied to the development of high-performance energy storage devices with superior power and energy densities.
Interaction of Adipokines and Hepatitis B Virus on Histological Liver Injury in the Chinese
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 2010
DOI: 10.1038/AJG.2009.560
Abstract: Chronic hepatitis B patients with diabetes and metabolic syndrome are at increased risk of cirrhosis and hepatocellular carcinoma, but the underlying mechanism is unclear. Our objective was to test whether dysregulation of adipokines contributes to liver injury. We also studied whether viral factors affected adipokines, insulin resistance, and hepatic steatosis. A prospective cohort of 266 chronic hepatitis B patients undergoing liver biopsy was studied. Fasting blood was taken for the analysis of tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6), adiponectin, leptin, and resistin. Insulin resistance was assessed by the homeostasis model assessment of insulin resistance (HOMA-IR). Factors associated with significant necroinflammation and cirrhosis were identified. Histological activity index was correlated with serum TNF-alpha (R=0.40, P<0.0001) and IL-6 (R=0.32, P<0.0001) but not with adiponectin, leptin, or resistin. By multivariate analysis, TNF-alpha was associated with significant necroinflammation after adjusting for age and viral factors (odds ratio (OR) 1.041, 95% confidence interval (CI) 1.002-1.082, P=0.04). Serum adiponectin had positive correlation with hepatitis B virus DNA (R=0.17, P=0.007) and was decreased in patients with insulin resistance and hepatic steatosis. On the other hand, viral load, hepatitis B e-antigen status, and genotypes had no association with insulin resistance, hepatic steatosis, and the levels of TNF-alpha and IL-6. A total of 68 (25.6%) patients had cirrhosis. HOMA-IR, but not adipokine dysregulation, was independently associated with cirrhosis (OR 1.09, 95% CI 1.02-1.15, P=0.006). TNF-alpha and/or IL-6 contribute to hepatic necroinflammation in chronic hepatitis B patients. Adiponectin protects against insulin resistance and hepatic steatosis but does not affect liver injury. Adipokines and viral factors contribute to liver injury independently.
CuO cauliflowers for supercapacitor application: Novel potentiodynamic deposition
Publisher: Elsevier BV
Date: 02-2013
Ultrathin Mesoporous RuCo2O4 Nanoflakes: An Advanced Electrode for High‐Performance Asymmetric Supercapacitors
Publisher: Wiley
Date: 20-03-2017
Abstract: A new ruthenium cobalt oxide (RuCo
Electrochemical behavior of potentiodynamically deposited cobalt oxyhydroxide (CoOOH) thin films for supercapacitor application
Publisher: Elsevier BV
Date: 03-2012
Baking impact of Fe composition on CdSe films for solar cell application
Publisher: Elsevier BV
Date: 10-2014
Nanostructure-Dependent Electrochemical Properties of Nb2O5 for Long-Life Li-Ion Batteries
Publisher: American Chemical Society (ACS)
Date: 11-11-2023
Poly(ethylene disulfide)/graphene oxide nanocomposites: Dynamic-mechanical and electrochemical properties
Publisher: Elsevier BV
Date: 05-2020
Photoelectrochemical and photocatalytic activity of nanocrystalline TiO2 thin films deposited by chemical bath deposition method
Publisher: Springer Science and Business Media LLC
Date: 30-06-2021
Anchoring cobalt oxide nanoparticles on to the surface multiwalled carbon nanotubes for improved supercapacitive performances
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA06377A
Abstract: SEM and TEM images of Co 3 O 4 nanodots anchored on to the surface of multiwalled carbon nanotubes.
A Longitudinal Study to Identify the Causes of Mortality in Fayoumi and Rhode Island Red Chickens and the Immune Status of the Birds against Newcastle Disease
Publisher: Bangladesh Journals Online (JOL)
Date: 1970
Abstract: With a prospective longitudinal study undertaken between November 2005 and July 2006 survival rates and disease status of Fayoumi and Rhode Island Red (RIR) chickens, reared at a government poultry farm, Pahartali Zonal Poultry Farm (PZPF), were assessed. Immune status of these chickens against Newcastle disease (ND) was also determined by estimating the haemagglutination inhibition (HI) titre to Newcastle disease virus (NDV) in blood sera of the chickens. The results showed that, at the end of the 37 week, the survival rate of the Fayoumi and RIR chickens were 87 and 81% respectively. The difference of the survival rates between the two groups was significant (p .05). Among the diseases, coccidiosis was the predominant disease affecting both the populations. The incidence rate of coccidiosis, coccidiosis plus enteritis, salmonellosis, colibacillosis and heat stroke in Fayoumi and RIR chickens was 0.095 and 0.135, 0.064 and 0.057, 0.007 and 0.010, 0.006 and 0.012, and 0.017 and 0.016 respectively. The HI titre dynamics showed that, in case of Fayoumi (except 1st month), HI titre was always log2 6.4, which was well above the protective threshold. Like Fayoumi, the highest level of HI titre ( log2 6.9) to NDV in the RIR chickens was recorded in the same month and almost identical ranges of HI titres to NDV were recorded in both Fayoumi and RIR chickens throughout the study period. Keywords: Fayoumi chickens, Rhode Island Red (RIR) chickens, Newcastle disease (ND), Newcastle disease virus (NDV), Survival rate, Incidence rate, Haemagglutination inhibition (HI)DOI: 0.3329/bjm.v24i1.1237 Bangladesh J Microbiol, Volume 24, Number 1, June 2007, pp 47-51
A successive ionic layer adsorption and reaction (SILAR) method to induce Mn3O4 nanospots on CNTs for supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2NJ40862G
Frequent epigenetic inactivation of secreted frizzled-related protein 2 (SFRP2) by promoter methylation in human gastric cancer
Publisher: Springer Science and Business Media LLC
Date: 11-09-2007
Two step novel chemical synthesis of polypyrrole nanoplates for supercapacitor application
Publisher: Elsevier BV
Date: 08-2011
Biocompatible CaTiO3-PVDF composite-based piezoelectric nanogenerator for exercise evaluation and energy harvesting
Publisher: Elsevier BV
Date: 11-2022
Conversion of Chemically Prepared Interlocked Cubelike Mn[sub 3]O[sub 4] to Birnessite MnO[sub 2] Using Electrochemical Cycling
Publisher: The Electrochemical Society
Date: 2010
DOI: 10.1149/1.3428675
Self‐Assembled Nickel Pyrophosphate‐Decorated Amorphous Bimetal Hydroxides 2D‐on‐2D Nanostructure for High‐Energy Solid‐State Asymmetric Supercapacitor
Publisher: Wiley
Date: 10-04-2019
Abstract: To obtain a supercapacitor with a remarkable specific capacitance and rate performance, a cogent design and synthesis of the electrode material containing abundant active sites is necessary. In present work, a scalable strategy is developed for preparing 2D-on-2D nanostructures for high-energy solid-state asymmetric supercapacitors (ASCs). The self-assembled vertically aligned microsheet-structured 2D nickel pyrophosphate (Ni
Enhanced photoelectrochemical properties of nanoflower-like hexagonal CdSe0.6 Te0.4 : Effect of electron beam irradiation
Publisher: Elsevier BV
Date: 2017
Upcycling of nickel oxide from spent Ni-MH batteries as ultra-high capacity and stable Li-based energy storage devices
Publisher: Elsevier BV
Date: 07-2023
Ultrasonically dispersed multi-composite strategy of NiCo2S4/Halloysite nanotubes/carbon
Publisher: Elsevier BV
Date: 09-2022
Engineering of high-performance potassium-ion capacitors using polyaniline-derived N-doped carbon nanotubes anode and laser scribed graphene oxide cathode
Publisher: Elsevier BV
Date: 09-2019
Effect of morphology on supercapacitive properties of chemically grown β-Ni(OH)2 thin films
Publisher: Elsevier BV
Date: 03-2012
Enhancement in supercapacitive properties of CuO thin films due to the surfactant mediated morphological modulation
Publisher: Elsevier BV
Date: 2014
Flexible all-solid-state MnO2 thin films based symmetric supercapacitors
Publisher: Elsevier BV
Date: 05-2015
Conversion of interlocked cube-like Mn3O4 into nanoflakes of layered birnessite MnO2 during supercapacitive studies
Publisher: Elsevier BV
Date: 04-2010
Enhanced supercapacitive performances of hierarchical porous nanostructure assembled from ultrathin MnO2 nanoflakes
Publisher: Springer Science and Business Media LLC
Date: 08-08-2013
Hurdles to organic quinone flow cells. Electrode passivation by quinone reduction in acetonitrile Li electrolytes
Publisher: Elsevier BV
Date: 05-2017
Architectured Morphologies of Chemically Prepared NiO/MWCNTs Nanohybrid Thin Films for High Performance Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 27-02-2014
DOI: 10.1021/AM404422G
Abstract: The preparation of nanostructured metal oxide decorated on multiwalled carbon nanotubes (MWCNTs) nanohybrid films through simple, scalable, additive-free, binderless, and cost-effective route has fascinated significant attention not only in fundamental research areas but also its commercial applications, in order to reduce the growing environmental pollution and the cost of electrode fabrication. Here, we report the fabrication of highly flexible electrode with NiO/MWCNTs nanohybrid thin films directly on stainless steel substrate using successive ionic layer adsorption and reaction (SILAR) method. The impact of ratio of adsorption and reaction cycles on structural, surface areas and electrochemical properties of NiO/MWCNTs nanohybrids was investigated. X-ray diffraction measurements confirm the hybridization and face centered cubic (FCC) crystal structure of NiO in NiO/MWCNTs nanohybrids. In addition, these nanohybrids exhibit excellent surface properties such as uniform surface morphology, good surface area, pore volume, and uniform pore size distribution. The electrochemical tests demonstrate the highest specific capacitance of 1727 F g(-1) at 5 mA cm(-2) of current density with 91% capacitance retention after 2000 cycles. In addition, the Ragone plot confirms the better power and energy densities for all NiO/MWCNTs nanohybrids. The attractive electrochemical capacitive activity revealed by NiO/MWCNTs nanohybrid electrode proposes that it is an auspicious respondent for future energy storage application.
Bimetallic Phosphides for Hybrid Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 25-05-2021
Synthesis and characterization of chemically deposited flower-like CdSe0.6Te0.4 thin films for solar cell application
Publisher: Elsevier BV
Date: 07-2014
Cardiac arrhythmia spot light: Detection of ventricular fibrillation—Not all ICDs are created equal
Publisher: Wiley
Date: 19-05-2021
DOI: 10.1002/JOA3.12554
Lithium ion capacitors (LICs): Development of the materials
Publisher: Elsevier BV
Date: 05-2019
Multi-heteroatom doped nanocarbons for high performance double carbon potassium ion capacitor
Publisher: Elsevier BV
Date: 09-2021
Nanoflower-like CuO/Cu(OH)(2) hybrid thin films: Synthesis and electrochemical supercapacitive properties
Publisher: Elsevier BV
Date: 10-2014
2D MoS2 Heterostructures on Epitaxial and Self‐Standing Graphene for Energy Storage: From Growth Mechanism to Application
Publisher: Wiley
Date: 13-10-2021
Abstract: Layered molybdenum disulphide (MoS 2 ) crystals in combination with graphene create the opportunity for the development of heterostructures with tailored surface and structural properties for energy storage applications. Herein, 2D heterostructures are developed by growing MoS 2 on epitaxial and self‐standing nanoporous graphene (NPG) using chemical vapor deposition (CVD). The effect of substrate as well as different CVD growth parameters such as temperature, amount of sulfur and MoO 3 precursors, and argon flow on the growth of MoS 2 is systematically investigated. Interestingly, various structures of MoS 2 such as monolayer triangular islands, spirals, standing sheets, and irregular stacked multilayered MoS 2 are successfully developed. The growth mechanism is proposed using different advanced characterization techniques. The formation of a continuous wetting layer with grain boundaries over the surface prior to formation of any other structures is detected. As a proof of principle, MoS 2 /NPG is employed for the first time as anode material in potassium ion battery. The electrode delivers a specific capacity of 389 mAh g −1 with over 98% stability after 200 cycles. The porous structures clearly facilitate the ion transport which is beneficial for the ion battery. These encouraging results open new opportunities to develop hierarchical heterostructures of 2D‐materials for next‐generation energy storage technologies.
Nitrogen, phosphorus co-doped holey rGO as a cathode material for Li-ion capacitors (LICs)
Publisher: Elsevier BV
Date: 12-2023
Asymmetric Supercapacitors based on Hybrid CuO@Reduced Graphene Oxide@Sponge versus Reduced Graphene Oxide@Sponge Electrodes
Publisher: Wiley
Date: 12-01-2015
BiVO4 fern architectures: A competitive anode for lithium-ion batteries
Publisher: Wiley
Date: 19-10-2017
Abstract: The development of high-performance anode materials for lithium-ion batteries (LIBs) is currently subject to much interest. In this study, BiVO
Ultrafine TiO2 Nanoparticle Supported Nitrogen‐Rich Graphitic Porous Carbon as an Efficient Anode Material for Potassium‐Ion Batteries
Publisher: Wiley
Date: 05-05-2021
Abstract: Potassium‐ion batteries (KIBs) have attracted enormous attention as a next‐generation energy storage system due to their low cost, fast ionic conductivity within electrolytes, and high operating voltage. However, developing suitable electrode materials to guarantee high‐energy output and structural stability to ensure long cycling performance remains a critical challenge. Herein, anatase TiO 2 nanoparticles are encapsulated in nitrogen‐rich graphitic carbon (TiO 2 @NGC) with hierarchical pores and high surface area (250 m 2 g −1 ) using the Ti‐based metal–organic framework NH 2 ‐MIL‐125 (Ti 8 O 8 (OH) 4 (NH 2 ‐bdc) 6 with NH 2 ‐bdc 2− = 2‐amino‐1,4‐benzenedicarboxylate) as a sacrificial template. Serving as the anode material in a K‐ion half‐cell, TiO 2 @NGC delivers a high capacity of 228 mA h g −1 with remarkable cycling performance (negligible loss over 2000 cycles with more than 98% Coulombic efficiency). The charge‐storing mechanism is underpinned using ex situ characterization techniques such as ex situ X‐ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. It is revealed that the original TiO 2 phase gets transformed to the anorthic Ti 7 O 13 and monoclinic K 2 Ti 4 O 9 phase after the first charge/discharge cycle, which further initiates the charge storage process via the conversion reactions.
Solution-free self-assembled growth of ordered tricopper phosphide for efficient and stable hybrid supercapacitor
Publisher: Elsevier BV
Date: 08-2021
A large-scale study of a poultry trading network in Bangladesh: implications for control and surveillance of avian influenza viruses
Publisher: Springer Science and Business Media LLC
Date: 12-01-2018
Rational Design of Graphene Derivatives for Electrochemical Reduction of Nitrogen to Ammonia
Publisher: American Chemical Society (ACS)
Date: 09-11-2021
Abstract: The conversion of nitrogen to ammonia offers a sustainable and environmentally friendly approach for producing precursors for fertilizers and efficient energy carriers. Owing to the large energy density and significant gravimetric hydrogen content, NH
Hierarchical 3D-flower-like CuO nanostructure on copper foil for supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA11164H
Abstract: We present a novel route for the synthesis of CuO thin films. The nano-flower like nanostructures provide high surface area, and the CuO shows excellent supercapacitive properties.
Zinc Oxide Encapsulated Carbon Nanotube Thin Films for Energy Storage Applications
Publisher: Elsevier BV
Date: 02-2016
A high voltage solid state symmetric supercapacitor based on graphene-polyoxometalate hybrid electrodes with a hydroquinone doped hybrid gel-electrolyte
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA05660H
Abstract: Development of high energy density hybrid electrode based on rGO–PMo 12 for all-solid state supercapacitors along with actual demonstration of lighting of thirty one LEDs (NEO).
Interface Engineering of Nickel Selenide and Graphene Nanocomposite for Hybrid Supercapacitor
Publisher: Wiley
Date: 04-05-2023
Abstract: Nickel selenide is an emerging electrode material for high‐performance hybrid supercapacitors however, poor electrical conductivity and sluggish ion kinetics limit its application. Herein, a unique architecture by decorating NiSe nanoparticles on reduced graphene oxides (rGO) is developed. The synergistic effect of NiSe and rGO facilitated by the optimized addition of rGO results in significant improvement in the electrochemical performance. The physicochemical characterizations suggest that the enhancement can be attributed to increased interfacial interaction and access to the electrochemically active sites. The NiSe/rGO hybrid delivers a specific capacity of 351 mAh g −1 at 1 A g −1 , which is significantly higher than that for bare NiSe. Later, the hybrid supercapacitor based on NiSe/rGO hybrid as positive and activated carbon as negative electrode delivers a maximum energy density of 49.6 Wh kg −1 at a power density of 748.37 W kg −1 . In addition, the device shows good cyclic stability of 83.3% over 5000 cycles. Thus, an innovative approach to the development of high‐performance hybrid supercapacitors is offered.
Metal–Organic Framework (MOF) Derived Electrodes with Robust and Fast Lithium Storage for Li‐Ion Hybrid Capacitors
Publisher: Wiley
Date: 15-03-2019
Growth of polypyrrole nanostructures through reactive templates for energy storage applications
Publisher: Elsevier BV
Date: 02-2016
Reduced graphene oxide nanofluidic electrolyte with improved electrochemical properties for vanadium flow batteries
Publisher: Elsevier BV
Date: 05-2022
Uncovering giant nanowheels for magnesium ion–based batteries
Publisher: Elsevier BV
Date: 06-2020
Deep eutectic solvents assisted biomass pre-treatment to derive sustainable anode materials for lithium-ion batteries
Publisher: Elsevier BV
Date: 04-2023
Big as well as light weight portable, Mn3O4 based symmetric supercapacitive devices: Fabrication, performance evaluation and demonstration
Publisher: Elsevier BV
Date: 10-2012
Galvanostatically deposited Fe: MnO2 electrodes for supercapacitor application
Publisher: Elsevier BV
Date: 2012
One step hydrothermal synthesis of micro-belts like β-Ni(OH) 2 thin films for supercapacitors
Publisher: Elsevier BV
Date: 08-2013
Electrosynthesis of nanoflower like-ZnS thin films and its characterizations
Publisher: Springer Science and Business Media LLC
Date: 29-07-2015
Energy harvesting from neutralization reactions with saline feedback
Publisher: Elsevier BV
Date: 06-2018
Nickel Cobaltite: A Positive Electrode Material for Hybrid Supercapacitors
Publisher: Wiley
Date: 05-11-2021
Abstract: The increased demand of energy due to the recent technological advances in erse fields such as portable electronics and electric vehicles is often hindered by the poor capability of energy‐storage systems. Although supercapacitors (SCs) exhibit higher power density than state‐of‐the art batteries, their insufficient energy density remains a major challenge. An emerging concept of hybrid supercapacitors (HSCs) with the combination of one capacitive and one battery electrode in a single cell holds a great promise to deliver high energy density without sacrificing power density and cycling stability. This Minireview elaborates the recent advances of use of nickel cobaltite (NiCo 2 O 4 ) as a potential positive electrode (battery‐like) for HSCs. A brief introduction on the structural benefits and charge storage mechanisms of NiCo 2 O 4 was provided. It further shed a light on composites of NiCo 2 O 4 with different materials like carbon, polymers, metal oxides, and others, which altogether helps in increasing the electrochemical performance of HSCs. Finally, the key scientific challenges and perspectives on building high‐performance HSCs for future‐generation applications were reviewed.
MoS2 ultrathin nanoflakes for high performance supercapacitors: room temperature chemical bath deposition (CBD)
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA04441G
Diamond-coated silicon nanowires for enhanced micro-supercapacitor with ionic liquids
Publisher: IEEE
Date: 05-2015
All nanocarbon Li-Ion capacitor with high energy and high power density
Publisher: Elsevier BV
Date: 06-2018
Enhanced activity of chemically synthesized hybrid graphene oxide/Mn3O4 composite for high performance supercapacitors
Publisher: Elsevier BV
Date: 03-2013
Room temperature novel chemical synthesis of Cu2ZnSnS4 (CZTS) absorbing layer for photovoltaic application
Publisher: Elsevier BV
Date: 02-2012
Single step electrochemical synthesis of Sb2Se3 thin films: effect of molarities of precursor solution
Publisher: Springer Science and Business Media LLC
Date: 23-12-2011
Morphological modulation of Mn:CdSe thin film and its enhanced electrochemical properties
Publisher: Elsevier BV
Date: 08-2014
Electroactive graphene nanofluids for fast energy storage [Letter]
Publisher: IOP Publishing
Date: 11-07-2016
Editorial
Publisher: Springer Science and Business Media LLC
Date: 19-08-2017
RNA interference targeting raptor inhibits proliferation of gastric cancer cells
Publisher: Elsevier BV
Date: 06-2011
DOI: 10.1016/J.YEXCR.2011.03.005
Abstract: Mammalian target of rapamycin complex 1 (mTORC1) is dysregulated in gastric cancer. The biologic function of mTORC1 in gastric carcinogenesis is unclear. Here, we demonstrate that disruption of mTORC1 function by RNA interference-mediated downregulation of raptor substantially inhibited gastric cancer cell proliferation through induction of G(0)/G(1)-phase cell cycle arrest. The anti-proliferative effect was accompanied by concomitant downregulation of activator protein-1 and upregulation of Smad2/3 transcriptional activities. In addition, the expression of cyclin D(3) and p21(Waf1), which stabilizes cyclin D/cdk4 complex for G(1)-S transition, was reduced by raptor knockdown. In conclusion, disruption of mTORC1 inhibits gastric cancer cell proliferation through multiple pathways. This discovery may have an implication in the application of mTORC1-directed therapy for the treatment of gastric cancer.
Synthesis and characterization of photosensitive TiO2 nanorods by controlled precipitation route
Publisher: Springer Science and Business Media LLC
Date: 30-11-2011
Cover Image
Publisher: Wiley
Date: 10-2022
DOI: 10.1002/INF2.12378
Abstract: Rechargeable aqueous zinc ion hybrid capacitors were developed in this work via engineering a Zn‐anode/electrolyte interface and 3D Graphene‐like Carbon Cathode. The designed hybrid device realizes the battery‐like specific energy (203 Wh kg–1) and supercapacitor‐type power capability (4.9 kW kg–1) and cycling stability (96.75% retention over 30000 cycles) at a much lower price than the commercial supercapacitors and Li‐ion batteries. This work (DOI: 10.1002/inf2.12344 ) provides a scalable yet cost‐effective approach for developing a next‐generation Zn‐ion‐based energy storage system. image
High capacity rechargeable battery electrode based on mesoporous stacked Mn3O4 nanosheets
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2RA21806B
Decoration of Spongelike Ni(OH)2 Nanoparticles onto MWCNTs Using an Easily Manipulated Chemical Protocol for Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 22-03-2013
DOI: 10.1021/AM3026486
Abstract: This study uses a "bottom-up" approach chemical method to coat nanocrystalline Ni(OH)2 onto multiwalled carbon nanotubes (MWCNTs) for flexible supercapacitor electrodes, where the higher electronic conductivity of MWCNTs permits their use as the supporting backbone onto which Ni(OH)2 can be deposited. The paper portrays the advantages of the facile successive ionic layer adsorption and reaction (SILAR) method for depositing Ni(OH)2/MWCNT thin films onto large area flexible substrates. We demonstrate that these Ni(OH)2/MWCNT films consist of a uniform coating of sponge-like Ni(OH)2 on the MWCNT network structure using scanning electron micrographs and transmission electron micrographs this structure is promising for supercapacitor applications. Ni(OH)2/MWCNT films exhibit a specific capacitance of 1487 F g(-1) at a scan rate of 5 mV s(-1) in a 2 M KOH aqueous solution. The electrodes are generated using a simple three-beaker SILAR system at ambient conditions, thus providing an easy approach to fabricate high-power and high-energy flexible supercapacitors. Ni(OH)2/MWCNTs demonstrate a good rate capability and excellent long-term cyclic stability (96% capacity retention after 1000 cycles). Such high-performance capacitive behavior indicates that Ni(OH)2/MWCNT composites are promising electrode materials for the fabrication of supercapacitors. Thus, the method described in this paper provides a generalized route for the production of a wide range of Ni(OH)2/MWCNT-based materials for applications beyond electrochemical energy storage. These encouraging results promote interest in developing such devices, including nontoxic and greener components, compared with current organic-based devices.
The 4th International One Health Congress and 6th Biennial Congress of the International Association for Ecology and Health 2016
Publisher: Springer Science and Business Media LLC
Date: 19-10-2016
Superfast Electrodeposition of Newly Developed RuCo2O4 Nanobelts over Low‐Cost Stainless Steel Mesh for High‐Performance Aqueous Supercapacitor
Publisher: Wiley
Date: 22-05-2018
All-solid-state flexible thin film supercapacitor based on Mn3O4 stacked nanosheets with gel electrolyte
Publisher: Elsevier BV
Date: 03-2013
Morphological tuning of CuO nanostructures by simple preparative parameters in SILAR method and their consequent effect on supercapacitors
Publisher: Elsevier BV
Date: 04-2016
PVA assisted growth of hydrophobic honeycomb network of CdS thin films
Publisher: Elsevier BV
Date: 08-2010
Impact of Annealing Temperature on the Morphological, Optical and Photoelectrochemical Properties of Cauliflower-like CdSe0.6Te0.4 Photoelectrodes; Enhanced Solar Cell Performance
Publisher: MDPI AG
Date: 27-10-2021
Abstract: We are reporting on the impact of air annealing temperatures on the physicochemical properties of electrochemically synthesized cadmium selenium telluride (CdSe0.6Te0.4) s les for their application in a photoelectrochemical (PEC) solar cell. The CdSe0.6Te0.4 s les were characterized with several sophisticated techniques to understand their characteristic properties. The XRD results presented the pure phase formation of the ternary CdSe0.6Te0.4 nanocompound with a hexagonal crystal structure, indicating that the annealing temperature influences the XRD peak intensity. The XPS study confirmed the existence of Cd, Se, and Te elements, indicating the formation of ternary CdSe0.6Te0.4 compounds. The FE-SEM results showed that the morphological engineering of the CdSe0.6Te0.4 s les can be achieved simply by changing the annealing temperatures from 300 to 400 °C with intervals of 50 °C. The efficiencies (ƞ) of the CdSe0.6Te0.4 photoelectrodes were found to be 2.0% for the non-annealed and 3.1, 3.6, and 2.5% for the annealed at 300, 350, and 400 °C, respectively. Most interestingly, the PEC cell analysis indicated that the annealing temperatures played an important role in boosting the performance of the photoelectrochemical properties of the solar cells.
Sshape-assisted 2D MOF/graphene derived hybrids as exceptional lithium-ion battery electrodes
Publisher: Wiley
Date: 23-07-2019
Abstract: Herein, a novel polymer‐templated strategy is described to obtain 2D nickel‐based MOF nanosheets using Ni(OH) 2 , squaric acid, and polyvinylpyrrolidone (PVP), where PVP has a dual role as a structure‐directing agent, as well as preventing agglomeration of the MOF nanosheets. Furthermore, a scalable method is developed to transform the 2D MOF sheets to Ni 7 S 6 /graphene nanosheet (GNS) heterobilayers by in situ sulfidation using thiourea as a sulfur source. The Ni 7 S 6 /GNS composite shows an excellent reversible capacity of 1010 mAh g −1 at 0.12 A g −1 with a Coulombic efficiency of 98% capacity retention. The electrochemical performance of the Ni 7 S 6 /GNS composite is superior not only to nickel sulfide/graphene‐based composites but also to other metal disulfide–based composite electrodes. Moreover, the Ni 7 S 6 /GNS anode exhibits excellent cycle stability (≈95% capacity retention after 2000 cycles). This outstanding electrochemical performance can be attributed to the synergistic effects of Ni 7 S 6 and GNS, where GNS serves as a conducting matrix to support Ni 7 S 6 nanosheets while Ni 7 S 6 prevents restacking of GNS. This work opens up new opportunities in the design of novel functional heterostructures by hybridizing 2D MOF nanosheets with other 2D nanomaterials for electrochemical energy storage/conversion applications.
Chemical synthesis of Fe2O3 thin films for supercapacitor application
Publisher: Elsevier BV
Date: 02-2011
An advanced composite with ultrafast photocatalytic performance for the degradation of antibiotics by natural sunlight without oxidizing the source over TMU-5@Ni–Ti LDH: mechanistic insight and toxici
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0QI00050G
Abstract: Pharmaceuticals are considered as emerging organic contaminants that have become a serious environmental problem, which endanger human health and environmental bio- ersity.
Structural, optical, and photoelectrochemical properties of nanosphere-like CdXZn1-XS synthesized by electrochemical route
Publisher: Springer Science and Business Media LLC
Date: 06-09-2017
Effect of electron irradiation on properties of chemically deposited TiO2 nanorods
Publisher: Elsevier BV
Date: 06-2010
Dual Carbon Potassium-Ion Capacitors: Biomass-Derived Graphene-like Carbon Nanosheet Cathodes
Publisher: American Chemical Society (ACS)
Date: 19-10-2020
3D hierarchical assembly of ultrathin MnO2 nanoflakes on silicon nanowires for high performance micro-supercapacitors in Li- doped ionic liquid
Publisher: Springer Science and Business Media LLC
Date: 18-05-2015
DOI: 10.1038/SREP09771
Abstract: Building of hierarchical core-shell hetero-structures is currently the subject of intensive research in the electrochemical field owing to its potential for making improved electrodes for high-performance micro-supercapacitors. Here we report a novel architecture design of hierarchical MnO 2 @silicon nanowires (MnO 2 @SiNWs) hetero-structures directly supported onto silicon wafer coupled with Li-ion doped 1-Methyl-1-propylpyrrolidinium bis(trifluromethylsulfonyl)imide (PMPyrrBTA) ionic liquids as electrolyte for micro-supercapacitors. A unique 3D mesoporous MnO 2 @SiNWs in Li-ion doped IL electrolyte can be cycled reversibly across a voltage of 2.2 V and exhibits a high areal capacitance of 13 mFcm −2 . The high conductivity of the SiNWs arrays combined with the large surface area of ultrathin MnO 2 nanoflakes are responsible for the remarkable performance of these MnO 2 @SiNWs hetero-structures which exhibit high energy density and excellent cycling stability. This combination of hybrid electrode and hybrid electrolyte opens up a novel avenue to design electrode materials for high-performance micro-supercapacitors.
Characterization of NiO-Al2O3 composite and its conductivity in biogas for solid oxide fuel cell
Publisher: Walter de Gruyter GmbH
Date: 09-05-2016
Abstract: NiO–Al 2 O 3 nanocomposite has been synthesized by mixing combustion synthesized powders. The nanocomposite is an effective anode/anode functional layer for intermediate temperature solid oxide fuel cells. The TEM of NiO and Al 2 O 3 revealed spherical particles of 30 nm and platelets of 70 nm, respectively. The XRD analysis of NiO–Al 2 O 3 composite sintered at 900 °C showed presence of cubic NiO and rhombohedral α-Al 2 O 3 which were chemically stable. However, above 1200 °C NiAl 2 O 4 started to appear. The conductivity of NiO–Al 2 O 3 was the highest in hydrogen (4.3 × 10 –3 S/cm at 600 °C). In biogas, the conductivity was 3.2 × 10 –3 S/cm with the activation energy of 0.67 eV. The stability of the composite in biogas was also examined.
Synthetic approach from polypyrrole nanotubes to nitrogen doped pyrolyzed carbon nanotubes for asymmetric supercapacitors
Publisher: Elsevier BV
Date: 03-2016
Mild chemical strategy to grow micro-roses and micro-woolen like arranged CuO nanosheets for high performance supercapacitors
Publisher: Elsevier BV
Date: 11-2013
Water‐Stable Fluorous Metal–Organic Frameworks with Open Metal Sites and Amine Groups for Efficient Urea Electrocatalytic Oxidation
Publisher: Wiley
Date: 27-06-2023
Abstract: Urea oxidation reaction (UOR) is one of the promising alternative anodic reactions to water oxidation that has attracted extensive attention in green hydrogen production. The application of specifically designed electrocatalysts capable of declining energy consumption and environmental consequences is one of the major challenges in this field. Therefore, the goal is to achieve a resistant, low‐cost, and environmentally friendly electrocatalyst. Herein, a water‐stable fluorinated Cu(II) metalorganic framework (MOF) {[Cu 2 (L)(H 2 O) 2 ]·(5DMF)(4H 2 O)} n (Cu‐FMOF‐NH 2 H 4 L = 3,5‐bis(2,4‐dicarboxylic acid)‐4‐(trifluoromethyl)aniline) is developed utilizing an angular tetracarboxylic acid ligand that incorporates both trifluoromethyl (–CF 3 ) and amine (–NH 2 ) groups. The tailored structure of Cu‐FMOF‐NH 2 where linkers are connected by fluoride bridges and surrounded by dicopper nodes reveals a 4,24T1 topology. When employed as electrocatalyst, Cu‐FMOF‐NH 2 requires only 1.31 V versus reversible hydrogen electrode (RHE) to deliver 10 mA cm −2 current density in 1.0 m KOH with 0.33 m urea electrolyte and delivered an even higher current density (50 mA cm −2 ) at 1.47 V versus RHE. This performance is superior to several reported catalysts including commercial RuO 2 catalyst with overpotential of 1.52 V versus RHE. This investigation opens new opportunities to develop and utilize pristine MOFs as a potential electrocatalyst for various catalytic reactions.
Solution-based binder-free synthetic approach of RuO2 thin films for all solid state supercapacitors
Publisher: Elsevier BV
Date: 07-2013
Plasma-activated water for improved intercalation and pseudocapacitance of MnO2 supercapacitor electrodes
Publisher: Elsevier BV
Date: 06-2023
From Thermal to Electroactive Graphene Nanofluids
Publisher: MDPI AG
Date: 28-11-2019
DOI: 10.3390/EN12234545
Abstract: Here, we describe selected work on the development and study of nanofluids based on graphene and reduced graphene oxide both in aqueous and organic electrolytes. A thorough study of thermal properties of graphene in amide organic solvents (N,N-dimethylformamide, N,N-dimethylacetamide, and N-methyl-2-pyrrolidone) showed a substantial increase of thermal conductivity and specific heat upon graphene integration in those solvents. In addition to these thermal studies, our group has also pioneered a distinct line of work on electroactive nanofluids for energy storage. In this case, reduced graphene oxide (rGO) nanofluids in aqueous electrolytes were studied and characterized by cyclic voltammetry and charge-discharge cycles (i.e., in new flow cells). In addition, hybrid configurations (both hybrid nanofluid materials and hybrid cells combining faradaic and capacitive activities) were studied and are summarized here.
Screen Printed Asymmetric Supercapacitors based on LiCoO 2 and Graphene Oxide*
Publisher: Wiley
Date: 02-10-2014
Predictors of corticosteroid-dependent and corticosteroid-refractory inflammatory bowel disease
Publisher: Wiley
Date: 19-03-2009
DOI: 10.1111/J.1365-2036.2009.03944.X
Abstract: Patients with inflammatory bowel disease (IBD) who are corticosteroid-dependent or -refractory are at higher risk of developing disease- and treatment-related complications. To identify retrospectively clinical factors present at diagnosis that predict the occurrence of corticosteroid dependency and refractoriness in Crohn's disease (CD) and ulcerative colitis (UC) patients. A total of 310 IBD patients (134 CD, 176 UC) were observed for 2140 person years and their use of systemic corticosteroids was determined. Outcomes of corticosteroid dependency and refractoriness were recorded. Univariate and multivariate analyses were performed to determine the clinical factors associated with outcomes. Seventy-seven (57.5%) CD and 95 (54.0%) UC patients had received corticosteroids during study period. In CD, thrombocytosis [Hazard ratio (HR):3.0] predicted, whereas colonic CD (HR:0.3) negatively predicted corticosteroid dependency. Stricturing phenotype (HR:4.5) predicted corticosteroid-refractory CD. For UC, thrombocytosis (HR:3.9) and extensive colitis (HR:1.7) predicted corticosteroid dependency. Presence of anaemia (HR:10.8) at diagnosis and initial requirement of total parenteral nutrition (TPN) (HR:18.8) predicted corticosteroid-refractory UC. The cumulative risks of surgery were 17.8% and 5.4% for CD and UC patients respectively at 1 year after starting corticosteroids. Thrombocytosis at diagnosis predicted corticosteroid-dependency in IBD. Stricturing phenotype of CD and the presence of anaemia in UC predicted subsequent course of corticosteroid refractoriness.
Supercapacitors operated at extremely low environmental temperatures
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA08538G
Abstract: This review describes recent advances relating to the optimization of electrode and electrolyte materials for use in SC cells that can operate at extremely low temperatures.
Tungsten Nitride Nanodots Embedded Phosphorous Modified Carbon Fabric as Flexible and Robust Electrode for Asymmetric Pseudocapacitor
Publisher: Wiley
Date: 30-11-2018
Abstract: Owing to the excellent physical properties of metal nitrides such as metallic conductivity and pseudocapacitance, they have recently attracted much attention as competitive materials for high-performance supercapacitors (SCs). However, the voltage window for metal nitride-based symmetric SCs is limited (0.6-0.8 V) in aqueous electrolyte due to the oxidation at high negative potentials. In this respect, ultra-small tungsten nitride particles onto the phosphorous modified carbon fabric (W
Sb2S3 nanoparticles through solution chemistry on mesoporous TiO2 for solar cell application
Publisher: Elsevier BV
Date: 12-2012
Electrochemical supercapacitive properties of polypyrrole thin films: influence of the electropolymerization methods
Publisher: Springer Science and Business Media LLC
Date: 19-07-2016
Long-term outcome of Helicobacter pylori-negative idiopathic bleeding ulcers: A prospective cohort study
Publisher: Elsevier BV
Date: 06-2005
DOI: 10.1053/J.GASTRO.2005.03.026
Abstract: Helicobacter pylori-negative idiopathic ulcers are increasingly recognized. The secular trend and long-term outcome of this condition are unknown. We prospectively studied consecutive patients with bleeding gastroduodenal ulcers from January to December 2000. The incidence and etiology of ulcers during this period were compared with that between September 1997 and August 1998. H. pylori-negative idiopathic ulcers were defined as negative tests for H. pylori, no exposure to analgesics within 4 weeks, and absence of other risk factors for ulcers. After the ulcers had healed, patients with H. pylori-negative idiopathic ulcers and patients with H. pylori ulcers who received eradication therapy were followed up for 12 months without anti-ulcer drugs. Six hundred thirty-eight patients had bleeding ulcers: 213 (33.4%) were H. pylori ulcers, and 120 (18.8%) were H. pylori-negative idiopathic ulcers (vs 480 [50.3%] H. pylori ulcers and 40 [4.2%] H. pylori-negative idiopathic ulcers in 1997-1998 P < .001). H. pylori-negative idiopathic ulcers accounted for 16.1% of patients who were admitted for bleeding and 42.4% of patients who bled while in the hospital (P < .0001) 28.3% of patients with H. pylori-negative idiopathic ulcers had histologic evidence of past H. pylori infection. The probability of recurrent ulcer complications in 12 months was 13.4% (95% CI: 7.3%-19.5%) in patients with H. pylori-negative idiopathic ulcers and 2.5% (95% CI: 0.4%-4.6%) in patients with H. pylori ulcers who received eradication therapy (P = .0002). The incidence of H. pylori-negative idiopathic bleeding ulcers is rising. These ulcers are prone to recurrent complications.
Demonstrating the Highest Supercapacitive Performance of Branched MnO 2 Nanorods Grown Directly on Flexible Substrates using Controlled Chemistry at Ambient Temperature
Publisher: Wiley
Date: 29-01-2013
Probing the effect of Mg doping on triclinic Na2Mn3O7 transition metal oxide as cathode material for sodium-ion batteries
Publisher: Elsevier BV
Date: 10-2021
Polyaniline–polypyrrole nanograined composite via electrostatic adsorption for high performance electrochemical supercapacitors
Publisher: Elsevier BV
Date: 03-2013
Room temperature liquefied petroleum gas (LPG) sensor
Publisher: Elsevier BV
Date: 06-2010
Hybrid Graphene-Polyoxometalates Nanofluids as Liquid Electrodes for Dual Energy Storage in Novel Flow Cells
Publisher: Wiley
Date: 22-02-2018
Abstract: Solid Hybrid materials abound. But flowing versions of them are new actors in the materials science landscape and in particular for energy applications. This paper presents a new way to deliver nanostructured hybrid materials for energy storage, namely, in the form of nanofluids. We present here the first ex le of a hybrid electroactive nanofluid (HENFs) combining capacitive and faradaic energy storage mechanisms in a single fluid material. This liquid electrode is composed of reduced graphene oxide and polyoxometalates (rGO-POMs) forming a stable nanocomposite for electrochemical energy storage in novel Nanofluid Flow Cells. Two graphene based hybrid materials (rGO-phosphomolybdate, rGO-PMo
Cost effective facile synthesis of TiO2 nanograins for flexible DSSC application using rose bengal dye
Publisher: Springer Science and Business Media LLC
Date: 09-2014
Basic idea, advance approach: Efficiency boost by sensitization of blended dye on chemically deposited ZnO films
Publisher: Elsevier BV
Date: 03-2016
Influence of Mn incorporation on the supercapacitive properties of hybrid CuO/Cu(OH)2 electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA01093D
Abstract: Variation of specific capacitance of undoped and Mn doped CuO/Cu(OH) 2 hybrid electrodes with corresponding SEM.
Electrochemical synthesis: Monoclinic Cu2Se nano-dendrites with high performance for supercapacitors
Publisher: Elsevier BV
Date: 06-2017
Towards flexible solid-state supercapacitors for smart and wearable electronics
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7CS00505A
Abstract: Flexible solid-state supercapacitors (FSSCs) are frontrunners in energy storage device technology and have attracted extensive attention owing to recent significant breakthroughs in modern wearable electronics.
Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach
Publisher: Wiley
Date: 14-12-2018
Methylation of Protocadherin 10, a Novel Tumor Suppressor, Is Associated With Poor Prognosis in Patients With Gastric Cancer
Publisher: Elsevier BV
Date: 02-2009
DOI: 10.1053/J.GASTRO.2008.10.050
Abstract: By using methylation-sensitive representational difference analysis, we identified protocadherin 10 (PCDH10), a gene that encodes a protocadherin and is silenced in a tumor-specific manner. We analyzed its epigenetic inactivation, biological effects, and prognostic significance in gastric cancer. Methylation status was evaluated by combined bisulfite restriction analysis and bisulfite sequencing. The effects of PCDH10 re-expression were determined in growth, apoptosis, proliferation, and invasion assays. PCDH10 target genes were identified by complementary DNA microarray analysis. PCDH10 was silenced or down-regulated in 94% (16 of 17) of gastric cancer cell lines expression levels were restored by exposure to demethylating agents. Re-expression of PCDH10 in MKN45 gastric cancer cells reduced colony formation in vitro and tumor growth in mice it also inhibited cell proliferation (P < .01), induced cell apoptosis (P < .001), and repressed cell invasion (P < .05), up-regulating the pro-apoptosis genes Fas, Caspase 8, Jun, and CDKN1A the antiproliferation gene FGFR and the anti-invasion gene HTATIP2. PCDH10 methylation was detected in 82% (85 of 104) of gastric tumors compared with 37% (38 of 104) of paired nontumor tissues (P < .0001). In the latter, PCDH10 methylation was higher in precancerous lesions (27 of 45 60%) than in chronic gastritis s les (11 of 59 19%) (P < .0001). After a median follow-up period of 16.8 months, multivariate analysis revealed that patients with PCDH10 methylation in adjacent nontumor areas had a significant decrease in overall survival. Kaplan-Meier survival curves showed that PCDH10 methylation was associated significantly with shortened survival in stage I-III gastric cancer patients. PCDH10 is a gastric tumor suppressor its methylation at early stages of gastric carcinogenesis is an independent prognostic factor.
An innovative 3-D nanoforest heterostructure made of polypyrrole coated silicon nanotrees for new high performance hybrid micro-supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA03435C
Abstract: A micro-supercapacitor electrode made of polypyrrole coated silicon nanotrees.
A hemicellulose-first approach: one-step conversion of sugarcane bagasse to xylooligosaccharides over activated carbon modified with tandem plasma and acid treatments
Publisher: No publisher found
Date: 2022
DOI: 10.1039/D2GC01303G
Advances in flexible supercapacitors for portable and wearable smart gadgets
Publisher: Elsevier
Date: 2018
Room temperature LPG sensor based on n-CdS/p-polyaniline heterojunction
Publisher: Elsevier BV
Date: 04-03-2010
Deep Eutectic Solvents: Green Approach for Cathode Recycling of Li‐Ion Batteries
Publisher: Wiley
Date: 17-10-2021
Abstract: The overarching demand of modern electronics and electrification of transportation has tremendously increased usage of rechargeable lithium‐ion batteries (LIBs). As a result, massive amounts of solid waste are generated from the end‐of‐life LIBs and expected to increase by two‐ to threefolds in the near future. Without proper recycling strategies and infrastructure, the immediate threat of environmental pollution and wastage of resources is clear. One way to circumvent these challenges is to recycle the spent LIBs and recover the components and materials, especially heavy metals for future repurposing applications. This review highlights the recent discoveries on the use of deep eutectic solvents (DESs) as an economical and environmentally friendly medium for metal recovery from spent LIBs. Herein, how the different hydrogen donors and acceptors affect the overall performance of DES in terms of leaching efficiency, time, temperature, and metal recovery rates are outlined. Very importantly, the mechanism of metal leaching from the metal oxides using DES is discussed. Finally, some potential strategies and opportunities for further development of novel DES for metal‐recovery from not only spent LIBs but also other industries such as, mining, oil, and agriculture are outlined.
Asymmetric Supercapacitor Based on Nanostructured Ce‐doped NiO (Ce:NiO) as Positive and Reduced Graphene Oxide (rGO) as Negative Electrode
Publisher: Wiley
Date: 16-08-2016
Electrochemical synthesis of photosensitive nano-nest like CdSe0.6Te0.4 thin films
Publisher: Elsevier BV
Date: 10-2013
Ionically conducting PVA–LiClO 4 gel electrolyte for high performance flexible solid state supercapacitors
Publisher: Elsevier BV
Date: 12-2015
DOI: 10.1016/J.JCIS.2015.08.046
Abstract: The synthesis of polymer gel electrolyte having high ionic conductivity, excellent compatibility with active electrode material, mechanical tractability and long life is crucial to obtain majestic electrochemical performance for flexible solid state supercapacitors (FSS-SCs). Our present work describes effect of different polymers gel electrolytes on electrochemical properties of MnO2 based FSS-SCs device. It is revealed that, MnO2-FSS-SCs with polyvinyl alcohol (PVA)-Lithium perchlorate (LiClO4) gel electrolyte demonstrate excellent electrochemical features such as maximum operating potential window (1.2V), specific capacitance of 112Fg(-1) and energy density of 15Whkg(-1) with extended cycling stability up to 2500CV cycles. Moreover, the calendar life suggests negligible decrease in the electrochemical performance of MnO2-FSS-SCs after 20days.
Supercapacitors: from the Leyden jar to electric busses
Publisher: Springer Science and Business Media LLC
Date: 17-06-2016
Cobalt Cyclotetraphosphate (Co2P4O12): A New High-Performance Electrode Material for Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 11-03-2019
Graphene-Based Metal-Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies
Publisher: American Chemical Society (ACS)
Date: 11-2022
DOI: 10.1021/ACS.CHEMREV.2C00270
Abstract: Current energy and environmental challenges demand the development and design of multifunctional porous materials with tunable properties for catalysis, water purification, and energy conversion and storage. Because of their amenability to de novo reticular chemistry, metal-organic frameworks (MOFs) have become key materials in this area. However, their usefulness is often limited by low chemical stability, conductivity and inappropriate pore sizes. Conductive two-dimensional (2D) materials with robust structural skeletons and/or functionalized surfaces can form stabilizing interactions with MOF components, enabling the fabrication of MOF nanocomposites with tunable pore characteristics. Graphene and its functional derivatives are the largest class of 2D materials and possess remarkable compositional versatility, structural ersity, and controllable surface chemistry. Here, we critically review current knowledge concerning the growth, structure, and properties of graphene derivatives, MOFs, and their graphene@MOF composites as well as the associated structure-property-performance relationships. Synthetic strategies for preparing graphene@MOF composites and tuning their properties are also comprehensively reviewed together with their applications in gas storage/separation, water purification, catalysis (organo-, electro-, and photocatalysis), and electrochemical energy storage and conversion. Current challenges in the development of graphene@MOF hybrids and their practical applications are addressed, revealing areas for future investigation. We hope that this review will inspire further exploration of new graphene@MOF hybrids for energy, electronic, biomedical, and photocatalysis applications as well as studies on previously unreported properties of known hybrids to reveal potential "diamonds in the rough".
Emerging MXene@Metal–Organic Framework Hybrids: Design Strategies toward Versatile Applications
Publisher: American Chemical Society (ACS)
Date: 18-11-2021
Development of hybrid materials based on sponge supported reduced graphene oxide and transition metal hydroxides for hybrid energy storage devices
Publisher: Springer Science and Business Media LLC
Date: 08-12-2014
DOI: 10.1038/SREP07349
Abstract: Earnest efforts have been taken to design hybrid energy storage devices using hybrid electrodes based on capacitive (rGO) and pseudocapacitive (Ni(OH) 2 and Co(OH) 2 ) materials deposited on the skeleton of 3D macroporous (indicate sponge material) sponge support. Conducting framework was formed by coating rGO on macroporous sponge on which subsequent deposition of Ni(OH) 2 and Co(OH) 2 was carried out. The synergetic combination of rGO and Ni(OH) 2 or Co(OH) 2 ) provides dual charge-storing mechanisms whereas 3D framework of sponge allows excellent accessibility of electrolyte to hybrid electrodes. Moreover, to further increase the energy density, hybrid devices have been fabricated with SP@rGO@Ni or SP@rGO@Co and SP@rGO as positive and negative electrodes, respectively. These hybrid devices operate with extended operating voltage windows and achieve remarkable electrochemical supercapacitive properties which make them truly promising energy storage devices for commercial production.
Exploring the Effect of Morphologies of Fe(III) Metal‐Organic Framework MIL‐88A(Fe) on the Photocatalytic Degradation of Rhodamine B
Publisher: Wiley
Date: 02-07-2020
Studies on the Zn x Co 1−x S thin films: A facile synthesis process and characteristic properties
Publisher: Elsevier BV
Date: 2016
Upper gastrointestinal tract phenotype of Crohn's disease is associated with early surgery and further hospitalization
Publisher: Oxford University Press (OUP)
Date: 04-2009
DOI: 10.1002/IBD.20804
Abstract: According to the Montreal Classification, upper gastrointestinal tract phenotype L4 is uncommon in Caucasian patients with Crohn's disease (CD) but carries excess risk of recurrence. We studied the clinical course of CD in Chinese patients presenting with the L4 phenotype and factors predicting its occurrence upon longitudinal follow-up. This prospective cohort study included 132 Chinese CD patients (median age at diagnosis, 30.0 years, range: 14.0-77.0 years) who were followed for 770 person-years. Demographic data including disease behavior and location, details of surgery, and hospitalization were collected. The Kaplan-Meier method was used to estimate the probabilities of further hospitalization and major surgery followed by Cox proportional hazards regression to determine if clinical variables independently predicted the endpoints. The L4 phenotype was found in 30 (22.7%) patients at presentation. There were significantly more stricturing (46.7% versus 18.6%) and penetrating (30.0% versus 3.9%) phenotypes in the L4 group than in the non-L4 group (P < 0.0001). The 3-year cumulative probability of further hospitalization was 86.9% (95% confidence interval [CI]: 73.8%-100.0%) in the L4 group as compared with 49.3% (95% CI: 39.3%-59.3%) in the non-L4 group (log-rank test, P < 0.0001). The L4 phenotype independently predicted further hospitalization (adjusted hazards ratio [HR]: 2.1 95% CI: 1.3-3.5). The cumulative probability of major surgery was significantly higher in the L4 than in the non-L4 group (P < 0.0001). Eighteen (17.6%) patients developed the L4 phenotype on follow-up and the stricturing phenotype predicted its occurrence (adjusted HR: 5.5 95% CI: 2.2-14.0). Chinese CD patients more often had the L4 phenotype, which predicted the need of subsequent hospitalization.
Decoration of Ultrathin MoS2 Nanoflakes over MWCNTs: Enhanced Supercapacitive Performance through Electrode to Symmetric All-Solid-State Device
Publisher: Wiley
Date: 13-11-2017
2D-on-2D core–shell Co3(PO4)2 stacked micropetals@Co2Mo3O8 nanosheets and binder-free 2D CNT–Ti3C2TX
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA07919K
Abstract: (a) Assembly of the FHSC device (b) the excellent electrochemical performance of FHSC device.
Organic field-effect transistor-based flexible sensors
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9CS00811J
Abstract: Flexible transistors are the next generation sensing technology, due to multiparametric analysis, reduced complexity, biocompatibility, lightweight with tunable optoelectronic properties. We summarize multitude of applications realized with OFETs.
Potassium-Ion Storage in Cellulose-Derived Hard Carbon: The Role of Functional Groups
Publisher: Wiley
Date: 08-07-2020
Drug-induced side effects affecting the gastrointestinal tract
Publisher: Informa Healthcare
Date: 15-06-2006
Abstract: With the ever-growing armamentarium of pharmacological agents, the gastrointestinal drug-induced side effects of dyspepsia, nausea, vomiting, diarrhoea and constipation are increasingly seen. They are often self-limiting and without serious sequelae, but of greater concern is drug-induced mucosal ulceration that can manifest as gastrointestinal haemorrhage, stricture and perforation. These complications are mainly attributable to NSAIDs and aspirin, which can injure the mucosa anywhere along the gastrointestinal tract. These iatrogenic serious side effects can be reduced with co-prescription of a proton pump inhibitor, substitution of a COX-2 inhibitor and eradication of Helicobacter pylori when the bacterium is present. Other recognised gastrointestinal complications include small intestinal diaphragm, microscopic colitis, a range of hepatotoxic effects and pancreatitis. The introduction of new classes of drugs has resulted in new adverse effects that require consideration in patients presenting with gastroenterological symptoms. These include pill oesophagitis from bisphosphonates and ischaemic colitis relating to serotonin antagonists. Here, the authors review the literature on drug-induced complications of the gastrointestinal tract and present the pertinent management issues relevant to clinical practice.
Expired Pharmaceutical Drugs as Tribopositive Material for Triboelectric Nanogenerator
Publisher: Wiley
Date: 17-10-2021
Abstract: The disposal of expired pharmaceutical drugs is largely unattended, which leads to massive environmental pollution. Herein, a novel strategy is demonstrated to turn expired drugs into a novel tribopositive material in a triboelectric nanogenerator (TENG). To realize the proposed method, three types of expired tablets such as paracetamol, nimesulide, and guaiphenesin are employed as tribopositive materials in TENG devices. Owing to their high electron donating capability with hydroxyl and carbonyl functional groups, these drugs reveal strong positive triboelectric potential. The proposed TENG devices yield open circuit voltages ranging from 267 to 561 V, while the short circuit current varies from 28 to 53 µA under a pneumatic air cylinder of 10 Hz. Impressively, the drug‐based TENG can scavenge energy to light up to 169 commercial light‐emitting diodes (LEDs). This excellent performance makes these expired drugs a promising positive tribomaterial, providing a possible solution to recycle a huge amount of pharmaceutical waste. These materials and reuse strategies are expected to aid the development of alternative sustainable energy conversion technology.
Polyoxometalates (POMs)
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0EE03407J
Abstract: Polyoxometalates as anionic molecular metal oxides clusters with open frameworks and rich redox chemistry have outstanding versatility in energy conversion and storage research.
Unveiling BiVO4 nanorods as a novel anode material for high performance lithium ion capacitors: beyond intercalation strategies
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA00549D
Abstract: A high energy and high power density Li-ion capacitor based on BiVO 4 nanorods (left) and partially reduced graphene oxide nanosheets (PRGO, on right) for EV applications.
Highly efficient and stable negative electrode for asymmetric supercapacitors based on graphene/FeCo2O4 nanocomposite hybrid material
Publisher: Elsevier BV
Date: 02-2019
Presenting highest supercapacitance for TiO2/MWNTs nanocomposites: Novel method
Publisher: Elsevier BV
Date: 07-2014
An innovative concept of use of redox-active electrolyte in asymmetric capacitor based on MWCNTs/MnO2 and Fe2O3 thin films
Publisher: Springer Science and Business Media LLC
Date: 16-12-2016
DOI: 10.1038/SREP39205
Abstract: In present investigation, we have prepared a nanocomposites of highly porous MnO 2 spongy balls and multi-walled carbon nanotubes (MWCNTs) in thin film form and tested in novel redox-active electrolyte (K 3 [Fe(CN) 6 ] doped aqueous Na 2 SO 4 ) for supercapacitor application. Briefly, MWCNTs were deposited on stainless steel substrate by “dip and dry” method followed by electrodeposition of MnO 2 spongy balls. Further, the supercapacitive properties of these hybrid thin films were evaluated in hybrid electrolyte ((K 3 [Fe(CN) 6 doped aqueous Na 2 SO 4 ). Thus, this is the first proof-of-design where redox-active electrolyte is applied to MWCNTs/MnO 2 hybrid thin films. Impressively, the MWCNTs/MnO 2 hybrid film showed a significant improvement in electrochemical performance with maximum specific capacitance of 1012 Fg −1 at 2 mA cm −2 current density in redox-active electrolyte, which is 1.5-fold higher than that of conventional electrolyte (Na 2 SO 4 ). Further, asymmetric capacitor based on MWCNTs/MnO 2 hybrid film as positive and Fe 2 O 3 thin film as negative electrode was fabricated and tested in redox-active electrolytes. Strikingly, MWCNTs/MnO 2 //Fe 2 O 3 asymmetric cell showed an excellent supercapacitive performance with maximum specific capacitance of 226 Fg −1 and specific energy of 54.39 Wh kg −1 at specific power of 667 Wkg −1 . Strikingly, actual practical demonstration shows lightning of 567 red LEDs suggesting “ready-to sell” product for industries.
A novel chemical synthesis of Mn3O4 thin film and its stepwise conversion into birnessite MnO2 during super capacitive studies
Publisher: Elsevier BV
Date: 08-2010
Effect of concentration on the charge storage kinetics of nanostructured MnO2 thin-film supercapacitors synthesized by the hydrothermal method
Publisher: MDPI AG
Date: 22-11-2020
DOI: 10.3390/EN13226124
Abstract: In this study, amorphous manganese oxide (MnO2) nanostructured thin films were synthesized by a simple hydrothermal method. It is well known that the nanostructure plays a crucial role in energy storage applications. Herein, MnO2 nanostructures ranging from plates to flakes were synthesized without the use of any hard or soft templates. The 4+ oxidation state of Mn was confirmed by X-ray photoelectron spectroscopy. The MnO2 nanoflake structure has a specific surface area of 46 m2g−1, which provides it with an excellent rate capability and an exactly rectangular cyclic voltammogram (CV) curve. The MnO2 nanoflake electrode has a high specific capacitance of about 433 Fg−1, an energy density of 60 Whkg−1 at 0.5 mAcm−2, and an excellent cyclic stability of 95% over 1000 CV cycles in 1 M aq. Na2SO4. Kinetics analysis of the charge storage in the nanoflake MnO2 s le shows a 55.6% diffusion-controlled contribution and 44.4% capacitive-controlled contribution to the total current calculated at a scan rate of 100 mVs−1 from the CV curve.
Supercapacitors Based on Flexible Substrates: An Overview
Publisher: Wiley
Date: 23-02-2014
Three-Dimensional Arrays of 1D MnO2 Nanocrystals for All-Solid-State Asymmetric Supercapacitors
Publisher: Wiley
Date: 27-02-2015
Abstract: Reported is the synthesis of 3D hierarchical structures based on one-dimensional MnO
A Cost Comparison of Management of Chronic Hepatitis B and Its Associated Complications in Hong Kong and Singapore
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 11-2004
DOI: 10.1097/00004836-200411003-00004
Abstract: To estimate and compare the direct medical cost in the management of chronic hepatitis B (CHB) infection and its complications from the perspective of public health organizations in Hong Kong and Singapore. Hong Kong and Singapore are endemic hepatitis B virus areas with about 10% and 5%, respectively, of the population estimated as hepatitis B virus infected. The medical histories of 660 patients with CHB who received medical services over 5 years from three major public hospitals in Hong Kong and Singapore were studied retrospectively. Costs were analyzed according to the five disease states and estimated in Hong Kong dollars (HKD) and Singapore dollars (SGD). In both Hong Kong and Singapore, the per-patient total annual cost increased with the severity of the disease. CHB cost HKD 6318 (US 810 dollars) in Hong Kong and SGD 718.15 (US 410.37 dollars) in Singapore. Compensated cirrhosis cost HKD 10,304 (US 1321 dollars) in Hong Kong and SGD 1,175.34 (US 671.62 dollars) in Singapore. Decompensated cirrhosis cost HKD 58,428 (US 7490 dollars) in Hong Kong and SGD 15,389.84 (US 8794.19 dollars) in Singapore. Hepatocellular carcinoma cost HKD 121,822 (US 15,618 dollars) in Hong Kong and SGD 12314.04 (US 7036.59 dollars) in Singapore. Each case of liver transplant was estimated to cost HKD 514,498 (US 65,961 dollars) in Hong Kong and SGD 86,369.28 (US 49,353.87 dollars) in Singapore. CHB in Hong Kong accounted for about 4% of the healthcare expenditure. This study confirms that CHB and its liver disease complications are a significant economic burden to the healthcare budgets of Hong Kong and Singapore, and indicates that effective therapy that arrests or reverses the progression of liver disease would be highly cost-effective.
Sponge-like β-Ni(OH)2 nanoparticles: synthesis, characterization and electrochemical properties
Publisher: Springer Science and Business Media LLC
Date: 07-01-2012
Bendable All‐Solid‐State Asymmetric Supercapacitors based on MnO2 and Fe2O3 Thin Films
Publisher: Wiley
Date: 30-04-0100
Fractal granular BiVO4 microspheres as high performance anode material for Li-ion battery
Publisher: Elsevier BV
Date: 10-2019
Clinician Perspectives of Barriers and Enablers to Implementing the Mediterranean Dietary Pattern in Routine Care for Coronary Heart Disease and Type 2 Diabetes: A Qualitative Interview Study
Publisher: Elsevier BV
Date: 07-2022
DOI: 10.1016/J.JAND.2022.01.012
Abstract: Practice guidelines for coronary heart disease and type 2 diabetes recommend promoting the Mediterranean dietary pattern (MDP), which improves cardiometabolic risk markers and may prevent disease progression and complications. It is unknown to what extent the MDP is recommended in routine care for patients with these conditions, particularly in multiethnic settings. The study aim was to explore multidisciplinary health care professionals' perspectives on recommending the MDP in routine care for patients with coronary heart disease or type 2 diabetes and barriers and enablers to its implementation. A qualitative description design was employed, utilizing semistructured in idual interviews to collect data. Fifty-seven clinicians (21 nurses, 19 doctors, 13 dietitians, and 4 physiotherapists) routinely managing relevant patients across hospital and community settings in a metropolitan health service in Australia participated in interviews between November 2019 and March 2020. Interviews were audiorecorded, transcribed verbatim, and analyzed using thematic analysis. Four overarching themes were identified highlighting that the MDP was not routinely recommended: current dietary practices (all clinicians perceived they had a role in dietary care but prioritization varied. There was a legacy of single nutrient-based strategies and disease silos) clinician-centered barriers to recommending MDP (limited MDP knowledge and practice skills and variable understanding and acceptance of evidence supporting its use. This was related to lack of education and training about the diet and personal interest/experience) organizational culture and resources influence dietary care (MDP not embedded in service culture or current clinic tools and resources, with limited dietary knowledge exchange within and across multidisciplinary teams) and perceived patient-centered barriers to implementation of MDP (socioeconomic challenges in a multicultural setting, and a lack of belief in patient capabilities to improve diet adherence). Clinician and organizational factors, compounded by perceptions about patient acceptance, influence recommendations of the MDP for patients with coronary heart disease or type 2 diabetes. These factors should be addressed to improve translation of MDP evidence into practice.
Fabrication of copper oxide multilayer nanosheets for supercapacitor application
Publisher: Elsevier BV
Date: 03-2010
Gold nanoparticles decorated rGO-ZnCo2O4 nanocomposite: A promising positive electrode for high performance hybrid supercapacitors
Publisher: Elsevier BV
Date: 2020
Nickel cobaltite as an emerging material for supercapacitors: An overview
Publisher: Elsevier BV
Date: 2015
Reconfiguring the Electronic Structure of Heteroatom Doped Carbon Supported Bimetallic Oxide@Metal Sulfide Core–Shell Heterostructure via In Situ Nb Incorporation toward Extrinsic Pseudocapacitor
Publisher: Wiley
Date: 29-11-2022
Abstract: High‐energy‐density battery‐type materials have sparked considerable interest as supercapacitors electrode however, their sluggish charge kinetics limits utilization of redox‐active sites, resulting in poor electrochemical performance. Here, the unique core–shell architecture of metal organic framework derived N–S codoped carbon@Co x S y micropetals decorated with Nb‐incorporated cobalt molybdate nanosheets (Nb‐CMO 4 @C x S y NC) is demonstrated. Coordination bonding across interfaces and π–π stacking interactions between CMO 4 @C x S y and N and, S–C can prevent volume expansion during cycling. Density functional theory analysis reveals that the excellent interlayer and the interparticle conductivity imparted by Nb doping in heteroatoms synergistically alter the electronic states and offer more accessible species, leading to increased electrical conductivity with lower band gaps. Consequently, the optimized electrode has a high specific capacity of 276.3 mAh g −1 at 1 A g −1 and retains 98.7% of its capacity after 10 000 charge–discharge cycles. A flexible quasi‐solid‐state SC with a layer‐by‐layer deposited reduced graphene oxide /Ti 3 C 2 T X anode achieves a specific energy of 75.5 Wh kg −1 (volumetric energy of 1.58 mWh cm −3 ) at a specific power of 1.875 kWh kg −1 with 96.2% capacity retention over 10 000 charge–discharge cycles.
Association of intestinal granulomas with smoking, phenotype, and serology in Chinese patients with Crohn's disease
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 05-2006
DOI: 10.1111/J.1572-0241.2006.00503.X
Abstract: Crohn's disease (CD) is a heterogenous disease characterized by variable manifestations and outcomes, and increasing in incidence in China. Phenotypic classification has been proposed to assist in subtyping of disease. Non-caseating intestinal granulomas are a hallmark of CD, but whether intestinal granulomas help predict Chinese CD phenotypes or determine severity, is not known. To determine the association between intestinal granulomas with CD phenotype, severity, risk factors, and serological markers. This was a single-centre study of consecutive definite Chinese CD cases. Granulomas were diagnosed by an experienced GI pathologist. Correlation with the Vienna Classification and other parameters was performed. Eighty Chinese CD patients were recruited, 40 (50%) of whom had intestinal granulomas. Intestinal granulomas were independently associated with the stricturing behavior (OR: 4.71 95% CI: 1.41-15.72), colonic location of disease (OR: 26.96 95% CI: 2.68-271.14), but not with age of CD diagnosis. Current or previous smoking protected against the development of granulomas (OR: 0.16 95% CI: 0.04-0.59). Granulomas were not associated with peri-anal involvement, extra-intestinal manifestations, anti-neutrophil cytoplasmic antibody or anti-Saccharomyces cerevisiae antibody serology, or severity of CD gauged by the requirement of major intestinal surgery or immunomodulating therapy. Intestinal granulomas in the setting of CD may be helpful in determining phenotypic subtypes of CD, but is unhelpful in predicting disease severity. Smoking impairs the formation of granulomas in CD.
A symmetric MnO2/MnO2 flexible solid state supercapacitor operating at 1.6V with aqueous gel electrolyte
Publisher: Elsevier BV
Date: 05-2016
Programmable coating of polyaniline on hemispherical nitrogen-doped mesoporous hollow carbon as high performance material for supercapacitor
Publisher: No publisher found
Date: 2021
Asymmetric Supercapacitors Based on Reduced Graphene Oxide with Different Polyoxometalates as Positive and Negative Electrodes
Publisher: Wiley
Date: 12-06-2017
Abstract: Nanofabrication using a "bottom-up" approach of hybrid electrode materials into a well-defined architecture is essential for next-generation miniaturized energy storage devices. This paper describes the design and fabrication of reduced graphene oxide (rGO) olyoxometalate (POM)-based hybrid electrode materials and their successful exploitation for asymmetric supercapacitors. First, redox active nanoclusters of POMs [phosphomolybdic acid (PMo
A green process for producing xylooligosaccharides via autohydrolysis of plasma-treated sugarcane bagasse
Publisher: Elsevier BV
Date: 08-2023
Temperature influence on morphological progress of Ni(OH)2 thin films and its subsequent effect on electrochemical supercapacitive properties
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA00024A
Low-cost flexible supercapacitors with high-energy density based on nanostructured MnO2 and Fe2O3 thin films directly fabricated onto stainless steel
Publisher: Springer Science and Business Media LLC
Date: 24-07-2015
DOI: 10.1038/SREP12454
Abstract: The facile and economical electrochemical and successive ionic layer adsorption and reaction (SILAR) methods have been employed in order to prepare manganese oxide (MnO 2 ) and iron oxide (Fe 2 O 3 ) thin films, respectively with the fine optimized nanostructures on highly flexible stainless steel sheet. The symmetric and asymmetric flexible-solid-state supercapacitors (FSS-SCs) of nanostructured (nanosheets for MnO 2 and nanoparticles for Fe 2 O 3 ) electrodes with Na 2 SO 4 /Carboxymethyl cellulose (CMC) gel as a separator and electrolyte were assembled. MnO 2 as positive and negative electrodes were used to fabricate symmetric SC, while the asymmetric SC was assembled by employing MnO 2 as positive and Fe 2 O 3 as negative electrode. Furthermore, the electrochemical features of symmetric and asymmetric SCs are systematically investigated. The results verify that the fabricated symmetric and asymmetric FSS-SCs present excellent reversibility (within the voltage window of 0–1 V and 0–2 V, respectively) and good cycling stability (83 and 91%, respectively for 3000 of CV cycles). Additionally, the asymmetric SC shows maximum specific capacitance of 92 Fg −1 , about 2-fold of higher energy density (41.8 Wh kg −1 ) than symmetric SC and excellent mechanical flexibility. Furthermore, the “real-life” demonstration of fabricated SCs to the panel of SUK confirms that asymmetric SC has 2-fold higher energy density compare to symmetric SC.
Bio-waste composites for cost-effective self-powered breathing patterns monitoring: An insight into energy harvesting and storage properties
Publisher: Elsevier BV
Date: 07-2022
Spent graphite from end-of-life Li-ion batteries as a potential electrode for aluminium ion battery
Publisher: Elsevier BV
Date: 12-2020
Ultrathin Hierarchical Porous Carbon Nanosheets for High-Performance Supercapacitors and Redox Electrolyte Energy Storage
Publisher: Wiley
Date: 08-03-2018
Abstract: The design of advanced high-energy-density supercapacitors requires the design of unique materials that combine hierarchical nanoporous structures with high surface area to facilitate ion transport and excellent electrolyte permeability. Here, shape-controlled 2D nanoporous carbon sheets (NPSs) with graphitic wall structure through the pyrolysis of metal-organic frameworks (MOFs) are developed. As a proof-of-concept application, the obtained NPSs are used as the electrode material for a supercapacitor. The carbon-sheet-based symmetric cell shows an ultrahigh Brunauer-Emmett-Teller (BET)-area-normalized capacitance of 21.4 µF cm
Three-dimensional nitrogen-doped rGO-siloxene nanocomposite anode for Li-ion storage
Publisher: Elsevier BV
Date: 07-2023
Alcohol mediated growth of α-MnO2thin films from KMnO4precursor for high performance supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 04-11-2014
DOI: 10.1039/C4RA09268F
Washable and Flexible All Carbon Electrothermal Joule Heater for Electric Vehicles
Publisher: Wiley
Date: 29-01-2023
Abstract: Amid the rapid development of electric vehicles, a flexible and waterproof radiant heater that can withstand repeated bending and washing is highly desirable. Herein, a freestanding, ultra‐flexible, and washable joule heater is constructed using a biocompatible poly(styrene‐isoprene‐styrene) (SIBS) polymer as binder and carbon black (CB) as heating material. By controlling the amount of CB and the thickness of the film, a minimum resistivity, and conductivity of 26 mΩ cm and 7.4 S cm −1 , respectively, is achieved. Remarkably, the 28% CB/SIBS film can reach a maximum temperature of 201 °C while maintaining a stable temperature at 130 °C for repeated ON/OFF cycles. Time‐of‐flight secondary ion mass spectrometry of post‐mortem material analysis shows that a 1 h stability test at 130 °C has no sign of degradation and the films remain extremely stable. The films also show exceptional electrothermal heater performance after carrying out mechanical property tests such as bending (over 30°), repetitive bending (1000 cycles), twisting (two turns), and washing (soaked in distilled water for over 12 h). These outstanding heater performances incorporate extreme chemical stability and mechanical flexibility proposing that the CB/SIBS‐based electrothermal elements hold great potential for numerous practical applications, such as heating systems in electric vehicles and wearable electronics.
Nano-dimensional iron tungstate for super high energy density symmetric supercapacitor with redox electrolyte
Publisher: Springer Science and Business Media LLC
Date: 14-11-2019
Chemical synthesis and characterization of Mn3O4 thin films for supercapacitor application
Publisher: Elsevier BV
Date: 05-2010
Effect of different modes of electrodeposition on supercapacitive properties of MnO2 thin films
Publisher: Elsevier BV
Date: 02-2011
High specific capacitance of a 3D-metal–organic framework-confined growth in CoMn2O4 nanostars as advanced supercapacitor electrode materials
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA00900A
Abstract: An hybrid supercapacitor was fabricated on Co( ii )-TMU-63#30%CoMn 2 O 4 nanocomposites (as the positive electrode) and AC (as the negative electrode), resulting in the high energy density of 38.54 W h kg −1 and power density of 2312.4 W kg −1 .
Enriched pseudocapacitive lithium storage in electrochemically activated carbonaceous vanadium(iv , v ) oxide hydrate
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA04191B
Abstract: Vanadium( iii ) oxide (V 2 O 3 ) derived, carbon integrated hydrated vanadium oxide (V 5 O 12 ·0.4H 2 O) as an extrinsic pseudocapacitive material for excellent lithium storage in lithium ion battery anodes.
Direct electrodeposition of imidazole modified poly(pyrrole) copolymers: synthesis, characterization and supercapacitive properties
Publisher: Elsevier BV
Date: 07-2017
Effect of annealing temperature on charge storage kinetics of an electrospun deposited manganese oxide supercapacitor
Publisher: Elsevier BV
Date: 05-2020
Metal oxide thin film based supercapacitors
Publisher: Elsevier BV
Date: 05-2011
Influence of texture in hybrid carbon-phosphomolybdic acid materials on their performance as electrodes in supercapacitors
Publisher: Elsevier BV
Date: 2017
Ammonia gas sensing properties of Al doped ZnO thin films
Publisher: Elsevier BV
Date: 10-2020
Recycle, Recover and Repurpose Strategy of Spent Li‐ion Batteries and Catalysts: Current Status and Future Opportunities
Publisher: Wiley
Date: 04-06-2020
Room temperature linker free growth of CdSe quantum dots on mesoporous TiO2: Solar cell application
Publisher: Elsevier BV
Date: 04-2015
Synthesis and characterizations of CdS nanorods by SILAR method: effect of film thickness
Publisher: Springer Science and Business Media LLC
Date: 15-03-2011
Surfactant-assisted morphological tuning of hierarchical CuO thin films for electrochemical supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3DT50275A
Abstract: Copper oxide (CuO) thin films are successfully synthesized using a surfactant assisted chemical bath deposition method for application in supercapacitors. The effect of organic surfactants such as Triton X-100 and polyvinyl alcohol (PVA) on structural, morphological, surface areas and electrochemical properties of CuO thin films is investigated. The films deposited using organic surfactants exhibit different surface morphologies. It is observed that the organic surfactants play important roles in modifying the morphology, surface area and pore size distribution. Electrochemical analysis confirms that the nanostructures of the electrode material play a vital role in supercapacitors. The cyclic voltammetry studies show a considerably improved high rate pseudocapacitance of CuO s les synthesized using organic surfactants. The maximum specific capacitance of 411 F g(-1) at 5 mV s(-1) is obtained for the CuO s le prepared using an organic surfactant (Triton X-100). Furthermore, all the CuO nanostructures exhibit high power performance, excellent rate as well as long term cycling stability. The Ragone plot ascertains better power and energy densities of CuO nanostructured s les. This is an easy and simple way to tune the morphology using surfactants which can be applied for other energy storage materials.
Refurbished carbon materials from waste supercapacitors as industrial-grade electrodes: Empowering electronic waste
Publisher: Elsevier BV
Date: 08-2022
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