ORCID Profile
0000-0002-5740-8627
Current Organisation
University of Adelaide
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Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2021
Publisher: AIP Publishing
Date: 25-08-2023
DOI: 10.1063/5.0148376
Abstract: The research community has witnessed an exceptional increase in exploring graphene related two-dimensional materials (GR2Ms) in many innovative applications and emerging technologies. However, simple, low-cost, sustainable, and eco-friendly methods to manufacture large quantities and high-quality GR2Ms still remain an unsolved challenge. To address limitations of conventional wet chemical-based exfoliation methods using graphite resources, the top-down irradiation approach has proven to be an ultrafast, effective, and environmentally friendly technology for scalable exfoliation, production, and processing of GR2Ms providing new properties for emerging applications. Significant advancements have been made for preparation of broad range of GR2Ms from graphite, such as graphene, graphene oxide, and reduced graphene oxide, and their doped, functionalized and modified forms over the past two decades, thanks to the availability of photon and ion irradiation techniques, such as microwave, infrared, ultraviolet, solar, x-ray, gamma, laser, and plasma. This review presents recent advances on the application of these various irradiation techniques and highlights their mechanism, differences in properties of prepared GR2Ms, and their advantages and disadvantages in comparison with other conventional methods. The review provides an insight into the irradiation strategies and their prospective applications to produce, at a large scale, low-cost, high-quality GR2Ms for practical applications in transparent electrodes, optoelectronic devices, sensors, supercapacitors, protective coatings, conductive inks, and composites.
Publisher: American Chemical Society (ACS)
Date: 23-02-2017
Abstract: Adhesion behavior of superhydrophobic (SH) surfaces is an active research field related to various engineering applications in controlled microdroplet transportation, self-cleaning, deicing, biochemical separation, tissue engineering, and water harvesting. Herein, we report a facile approach to control droplet adhesion, bouncing and rolling on properties of SH surfaces by tuning their air-gap and roughness-height by altering the concentrations of poly dimethyl-siloxane (PDMS). The optimal use of PDMS (4-16 wt %) in a dual-scale (nano- and microparticles) composite enables control of the specific surface area (SSA), pore volume, and roughness of matrices that result in a well-controlled adhesion between water droplets and SH surfaces. The sliding angles of these surfaces were tuned to be varied between 2 ± 1 and 87 ± 2°, which are attributed to the transformation of the contact type between droplet and surface from "point contact" to "area contact". We further explored the effectiveness of these low and high adhesive SH surfaces in icing and deicing actions, which provides a new insight into design highly efficient and low-cost ice-release surface for cold temperature applications. Low adhesion (lotus effect) surface with higher pore-volume exhibited relatively excellent ice-release properties with significant icing delay ability principally attributed to the large air gap in the coating matrix than SH matrix with high adhesion (petal effect).
Publisher: Wiley
Date: 08-02-2018
Abstract: Research into efficient synthesis, fundamental properties, and potential applications of phosphorene is currently the subject of intense investigation. Herein, solution-processed phosphorene or few-layer black phosphorus (FL-BP) sheets are prepared using a microwave exfoliation method and used in photoelectrochemical cells. Based on experimental and theoretical (DFT) studies, the FL-BP sheets are found to act as catalytically active sites and show excellent electrocatalytic activity for triiodide reduction in dye-sensitized solar cells. Importantly, the device fabricated based on the newly designed cobalt sulfide (CoS
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TB01122G
Abstract: Antibacterial activity of selected 2D materials on porous-titania prepared by plasma electrolytic oxidation (PEO) is presented.
Publisher: Elsevier BV
Date: 06-2020
Publisher: American Chemical Society (ACS)
Date: 17-12-2015
Abstract: Superhydrophobic surfaces for self-cleaning applications often suffer from mechanical instability and do not function well after abrasion/scratching. To address this problem, we present a method to prepare graphene-based superhydrophobic composite coatings with robust mechanical strength, self-cleaning, and barrier properties. A suspension has been formulated that contains a mixture of reduced graphene oxide (rGO) and diatomaceous earth (DE) modified with polydimethylsiloxane (PDMS) that can be applied on any surface using common coating methods such as spraying, brush painting, and dip coating. Inclusion of TiO2 nanoparticles to the formulation shows further increase in water contact angle (WCA) from 159 ± 2° to 170 ± 2° due to the structural improvement with hierarchical surface roughness. Mechanical stability and durability of the coatings has been achieved by using a commercial adhesive to bond the superhydrophobic "paint" to various substrates. Excellent retention of superhydrophobicity was observed even after sandpaper abrasion and crosscut scratching. A potentiodynamic polarization study revealed excellent corrosion resistance (96.78%) properties, and an acid was used to provide further insight into coating barrier properties. The ease of application and remarkable properties of this graphene-based composite coating show considerable potential for broad application as a self-cleaning and protective layer.
Publisher: Elsevier BV
Date: 04-2020
Publisher: Elsevier BV
Date: 11-2013
Publisher: American Chemical Society (ACS)
Date: 30-04-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TA13485A
Abstract: Few-layer antimonene nanosheets with surface oxidation have been used as an efficient nitrogen reduction reaction electrocatalyst for ammonia synthesis.
Publisher: Elsevier BV
Date: 05-2018
Publisher: American Scientific Publishers
Date: 08-2012
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier
Date: 2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA01010A
Abstract: This article reviews and discusses the potentialities, challenges and progress of graphene for application in multifunctional protective coatings.
Publisher: Elsevier BV
Date: 02-2018
Publisher: American Chemical Society (ACS)
Date: 13-12-2020
Publisher: Wiley
Date: 03-11-2015
Abstract: Dye-sensitized solar cells (DSSCs) have received significant attention from the scientific community since their discovery in 1991. However, the high cost and scarcity of platinum has motivated researchers to seek other suitable materials for the counter electrode of DSSCs. Owing to their exceptional properties such as high conductivity, good electrochemical activity, and low cost, carbon nanotubes (CNTs) have been considered as promising alternatives to expensive platinum (Pt) in the counter electrode of DSSCs. Herein, we provide a Minireview of the CNTs use in the counter electrode of DSSCs. A brief overview of Pt-based counter electrodes is also discussed. Particular attention is given to the recent advances of counter electrodes with CNT-based composite structures.
Publisher: Springer Science and Business Media LLC
Date: 2013
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0NR04933F
Abstract: Graphene and related 2D materials offer an ideal platform for next generation disruptive technologies and in particular the potential to produce printed electronic devices with low cost and high throughput.
Publisher: Elsevier BV
Date: 2021
Publisher: Elsevier BV
Date: 08-2023
Publisher: Elsevier BV
Date: 09-2013
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Publisher: Elsevier BV
Date: 12-2022
Publisher: Elsevier BV
Date: 09-2013
Publisher: Elsevier BV
Date: 2013
Publisher: MDPI AG
Date: 10-02-2014
DOI: 10.3390/MA7020980
Publisher: Informa UK Limited
Date: 02-2014
Publisher: American Chemical Society (ACS)
Date: 07-05-2014
DOI: 10.1021/IE403712F
Publisher: American Scientific Publishers
Date: 03-2013
Publisher: American Scientific Publishers
Date: 06-2012
Abstract: Synthesis of water based Al2O3-MWCNTs hybrid nanofluids have been investigated and characterized. Al2O3-MWCNTs nanoparticles in weight proportion of 97.5:2.5 to 90:10 have been studied over 1% to 6% weight concentration. Dispersion quality of nanofluids is assured by additional synthesis process like acids treatment and grinding of MWCNTs by planetary ball mill. The effects of ground and non-ground MWCNTs over dispersion quality and thermal conductivity have been investigated. Sedimentation effect of hybrid nanofluids with time length has been studied by s le visualization and TEM micrographs. The augmentative absorbance and thermal conductivity of hybrid nanofluids have been compared with pure Al2O3/water nanofluids. The overall result shows that the enhancement in normalized thermal conductivity of hybrid nanofluids is still not so sharp though the absorbance and other qualities show much better comparing mono type nanofluids. Hybrid nanofluids with spherical particles show a smaller increase in thermal conductivity comparing cylindrical shape particles.
Publisher: American Scientific Publishers
Date: 10-2013
Publisher: Wiley
Date: 08-02-2018
Publisher: American Chemical Society (ACS)
Date: 15-06-2016
Abstract: Here, we report a new method to prepare graphene from graphite by the liquid phase exfoliation process with sonication using graphene oxide (GO) as a dispersant. It was found that GO nanosheets act a as surfactant to the mediated exfoliation of graphite into a GO-adsorbed graphene complex in the aqueous solution, from which graphene was separated by an additional process. The preparation of isolated graphene from a single to a few layers is routinely achieved with an exfoliation yield of up to higher than 40% from the initial graphite material. The prepared graphene sheets showed a high quality (C/O ∼ 21.5), low defect (ID/IG ∼ 0.12), and high conductivity (6.2 × 10(4) S/m). Moreover, the large lateral size ranging from 5 to 10 μm of graphene, which is believed to be due to the shielding effect of GO avoiding damage under ultrasonic jets and cavitation formed by the sonication process. The thin graphene film prepared by the spray-coating technique showed a sheet resistance of 668 Ω/sq with a transmittance of 80% at 550 nm after annealing at 350 °C for 3 h. The transparent electrode was even greater with the resistance only 66.02 Ω when graphene is deposited on an interdigitated electrode (1 mm gap). Finally, a flexible sensor based on a graphene spray-coating polydimethylsiloxane (PDMS) is demonstrated showing excellent performance working under human touch pressure (<10 kPa). The graphene prepared by this method has some distinct properties showing it as a promising material for applications in electronics including thin film coatings, transparent electrodes, wearable electronics, human monitoring sensors, and RFID tags.
Publisher: Elsevier BV
Date: 2014
Publisher: Wiley
Date: 23-10-2017
Publisher: Wiley
Date: 20-10-2017
Publisher: Elsevier BV
Date: 05-2013
Publisher: Elsevier BV
Date: 03-2019
DOI: 10.1016/J.JCIS.2018.12.077
Abstract: We report a synthesis of magnetic nanoparticles chemically immobilized onto reduced graphene oxide sheets (referred to as rGO-Fe
Publisher: Elsevier BV
Date: 05-2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1NR00150G
Abstract: Printed electronic sensors offer a breakthrough in the availability of low-cost devices for improving the quality of human life. Conductive ink is the core of printing technology and is one of the fastest growing ink industries.
Publisher: Elsevier BV
Date: 02-2020
Publisher: Elsevier BV
Date: 10-2021
Publisher: American Scientific Publishers
Date: 12-2013
Publisher: Elsevier BV
Date: 06-2017
Publisher: Elsevier BV
Date: 11-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA03237A
Abstract: A facile and efficient strategy to produce nitrogen-doped (N-doped) phosphorene nanosheets that can be used as an efficient metal-free catalyst for electrochemical ammonia synthesis under ambient conditions is presented.
Publisher: Informa UK Limited
Date: 27-09-2013
Publisher: Elsevier BV
Date: 04-2018
Publisher: Elsevier BV
Date: 06-2014
Publisher: American Chemical Society (ACS)
Date: 10-03-2017
Abstract: To address high fire risks of flamable cellulosic materials, that can trigger easy combustion, flame propagation, and release of toxic gases, we report a new fire-retardant approach using synergetic actions combining unique properties of reduced graphene oxide (rGO) and hydrated-sodium metaborates (SMB). The single-step treatment of cellulosic materials by a composite suspension of rGO/SMB was developed to create a barrier layer on sawdust surface providing highly effective fire retardant protection with multiple modes of action. These performances are designed considering synergy between properties of hydrated-SMB crystals working as chemical heat-sink to slow down the thermal degradation of the cellulosic particles and gas impermeable rGO layers that prevents access of oxygen and the release of toxic volatiles. The rGO outer layer also creates a thermal and physical barrier by donating carbon between the flame and unburnt wood particles. The fire-retardant performance of developed graphene-borate composite and mechanism of fire protection are demonstrated by testing of different forms of cellulosic materials such as pine sawdust, particle-board, and fiber-based structures. Results revealed their outstanding self-extinguishing behavior with significant resistance to release of toxic and flammable volatiles suggesting rGO/SMB to be suitable alternative to the conventional toxic halogenated flame-retardant materials.
Publisher: American Chemical Society (ACS)
Date: 13-10-2021
Location: Korea, Republic of
No related grants have been discovered for Md. Julker Nine.