ORCID Profile
0000-0002-4524-6456
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Publisher: American Chemical Society (ACS)
Date: 13-02-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7RA01867C
Abstract: Carbon quantum dots (CQDs) sensitized Pt@Bi 2 WO 6 /FTO electrodes (simplified as CQDs-Pt@Bi 2 WO 6 /FTO) were prepared by loading platinum particles onto Bi 2 WO 6 nanoplates via a photo-deposition method and sensitized CQDs via a dip-coating method.
Publisher: Elsevier BV
Date: 13-12-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA06883A
Abstract: A novel hierarchically structured WO 3 –CNT@TiO 2 NS composite was prepared by the combination of solvothermal and liquid-phase chemistry deposition techniques.
Publisher: Springer Science and Business Media LLC
Date: 11-03-2022
DOI: 10.1038/S41467-022-28995-1
Abstract: Single-site cocatalysts engineered on supports offer a cost-efficient pathway to utilize precious metals, yet improving the performance further with minimal catalyst loading is still highly desirable. Here we have conducted a photochemical reaction to stabilize ultralow Pt co-catalysts (0.26 wt%) onto the basal plane of hexagonal ZnIn 2 S 4 nanosheets (Pt SS -ZIS) to form a Pt-S 3 protrusion tetrahedron coordination structure. Compared with the traditional defect-trapped Pt single-site counterparts, the protruding Pt single-sites on h -ZIS photocatalyst enhance the H 2 evolution yield rate by a factor of 2.2, which could reach 17.5 mmol g −1 h −1 under visible light irradiation. Importantly, through simple drop-casting, a thin Pt SS -ZIS film is prepared, and large amount of observable H 2 bubbles are generated, providing great potential for practical solar-light-driven H 2 production. The protruding single Pt atoms in Pt SS -ZIS could inhibit the recombination of electron-hole pairs and cause a tip effect to optimize the adsorption/desorption behavior of H through effective proton mass transfer, which synergistically promote reaction thermodynamics and kinetics.
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 05-2020
Publisher: American Chemical Society (ACS)
Date: 08-09-2023
Publisher: American Chemical Society (ACS)
Date: 26-08-2019
Abstract: Achieving green and sustainable chemical processes by replacing organic solvents with water has always been one of the green chemistry goals and a challenging topic for chemists. However, the poor solubility of organic materials is a major limitation to achieving this goal, especially in alcohol oxidation. In this contribution, the development and design of hiphilic catalysts via abundant, safe, cheaper, and more biocompatible sources have received notable attention. To this purpose, herein, our group successfully synthesized a new multifunctional hiphilic carbon quantum dot (CQD) composed of 1-aminopropyl-3-methyl-imidazolium chloride ([APMim][Cl]), dodecylamine (DDA), and citric acid (CA) (denoted as CQDs@DDA-IL/Cl) using a one-pot hydrothermal route. The CQDs@DDA-IL/Cl was then utilized as an hiphilic stabilizer for anchoring tungsten ions using an anion-exchange method (marked as CQDs@DDA-IL/W). The CQDs@DDA-IL/W as a reusable catalyst selectivity mediated the oxidation of alcoholic substrates with stoichiometric H
Publisher: IOP Publishing
Date: 07-04-2022
Abstract: Highly efficient and inexpensive electrocatalysts for oxygen evolution reaction (OER) are extensively studied for water splitting. Herein, a unique bimetallic nanocomposite CoNi(OH) 2 @NiCo 2 S 4 nanosheet arrays derived from metal-organic-frameworks (MOFs, CoNi-ZIF) is simply fabricated on Ni foam, endowing large specific surface area and outstanding electrical conductivity. Compared with their single-metallic counterparts, the bimetallic composite displays dramatically low overpotential and small Tafel slope as well as outstanding catalytic stability. The overpoptential at 20 mA cm −2 for CoNi(OH) 2 @NiCo 2 S 4 is only 230 mV in comparison with Ni(OH) 2 @Ni 3 S 2 (266 mV), Co(OH) 2 @Co 3 S 4 (294 mV) and RuO 2 ( η = 302 mV). First-principle calculations based on density functional theory (DFT) are carried out and reveal that the introduction of Ni in Co(OH) 2 helps lowered the energy difference of Δ G OOH* –Δ G O* , and thereby boosting the OER reactivity. This study provides an effective approach for the rational construction of low-cost metal hybrids.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA05532E
Abstract: Creating S vacancies in Ni 3 S 2 can effectively modulate the electronic structure and surface properties, which adjusts the adsorption behaviors during benzyl alcohol electro-oxidation thereby dramatically boost the catalytic activity.
Publisher: Elsevier BV
Date: 06-2008
Publisher: Elsevier BV
Date: 04-2011
Publisher: Elsevier BV
Date: 2010
Publisher: American Chemical Society (ACS)
Date: 03-10-2023
Publisher: Wiley
Date: 06-06-2018
Publisher: Elsevier BV
Date: 06-2006
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 12-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2CY00281G
Abstract: The electrocatalytic performance of 5-hydroxymethylfurfural (HMF) oxidation was improved by NiCo-based bimetallic-sites construction and S coordination species tuning.
Publisher: Wiley
Date: 21-11-2019
Publisher: Elsevier BV
Date: 08-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA00579D
Abstract: An earth-abundant alloy catalyst, NiCu NTs, is facilely prepared and can be used as a bifunctional catalyst toward biomass upgrading coupled with energy-saving H 2 production.
Publisher: Elsevier BV
Date: 12-2015
Publisher: Elsevier BV
Date: 07-2019
Publisher: Elsevier BV
Date: 02-2009
Publisher: Elsevier BV
Date: 04-2020
Publisher: Elsevier BV
Date: 10-2021
Publisher: Elsevier BV
Date: 12-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA08578D
Abstract: Self-supported NiCo 2 O 4 @NiWO 4 core–shell nanowire arrays have been synthesized by a hydrothermal method for asymmetric supercapacitors.
Publisher: Springer Science and Business Media LLC
Date: 06-2015
Publisher: Elsevier BV
Date: 09-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2SE01101H
Abstract: The electrocatalytic performance of 5-hydroxymethylfurfural (HMF) reduction is improved by the Ag-TiO 2 NT heterojunction through complementary metal–semiconductor interactions.
Publisher: Elsevier BV
Date: 11-2012
Publisher: American Chemical Society (ACS)
Date: 28-09-2010
DOI: 10.1021/AM100351K
Abstract: We report the synthesis of carbon nanotubes (CNTs)/mesostructured silica core-shell nanowires via an interfacial surfactant templating approach. The nanowires possess perpendicularly aligned and uniform accessible mesopores, high surface area and large pore volume. When dimethyl sulfoxide reductase (DMSOR) enzyme is immobilized on the core-shell nanowires, the complex can enhance the electrical communication between the active sites of the enzyme and the electrode surface in the presence of a mediator. The unique properties of the CNTs and the uniform accessible mesopores of the nanowires have made this material promising in the applications as carbon nanotubes field-effect transistors, electrochemical detection, and biosensors.
Publisher: American Chemical Society (ACS)
Date: 12-04-2023
Publisher: American Chemical Society (ACS)
Date: 18-09-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA00285A
Abstract: CoFe 2 O 4 /reduced graphene oxide (CoFe 2 O 4 /rGO) hydrogel was synthesized in situ via a facile one-pot solvothermal approach.
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA11750C
Abstract: An innovative etching method was developed to increase surface voids, active crystal facets and surface groups, which led to improved photocurrent performance.
Publisher: Wiley
Date: 16-07-2016
Publisher: American Chemical Society (ACS)
Date: 13-09-2023
Publisher: Elsevier BV
Date: 10-2013
Publisher: Elsevier BV
Date: 10-2012
Publisher: American Scientific Publishers
Date: 04-0007
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CE01757D
Abstract: Due to the more exposed (211) facet, the electrocatalytic water splitting activity of 2D CoP@C is superior to that of its counterpart 3D structure.
Publisher: Elsevier BV
Date: 05-2009
Publisher: Elsevier BV
Date: 10-2005
Publisher: Elsevier BV
Date: 12-2022
Publisher: Springer Science and Business Media LLC
Date: 22-12-2015
Publisher: IOP Publishing
Date: 14-11-2022
Abstract: Exploration of high-performance photoanodes is considered as an essential challenge in photoelectrochemical (PEC) water splitting due to the complex four-electron reaction in water oxidation. Herein, the nano-structured WO 3 -Se heterojunction decorated by organic Nafion layer is designed. The optimized WO 3 -Se200-0.05Nafion photoanode shows a remarkable photocurrent of 1.40 mA cm −2 at 1.23 V versus reversible hydrogen electrode, which is 2.5-fold higher than that of pure WO 3 nanosheets (WO 3 NS) photoelectrode. Remarkably, the photocurrent increments of WO 3 -Se200-0.05Nafion is larger than the increment sum of WO 3 -Se200 and WO 3 -0.05Nafion, which affirming the synergistic effect of Se nanospheres and Nafion layer. The improved PEC performances are attributed to the quick charge separation and transfer, the increased electric conductivity, and the excellent kinetics of oxygen evolution, which is derived from the strong interaction among WO 3 , Se and Nafion. Meanwhile, the better visible-light harvesting from Se nanospheres as photosensitizer and the induction of transparent Nafion as a passivation layer can explain this synergy. It hopes this heterostructure design with organic Nafion decoration can inspire to exploit outstanding performance photoanodes for PEC water splitting.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA03992F
Abstract: Doping Ni atoms can trigger the HER activity of inert S atoms on the 2D ZnIn 2 S 4 surface and prolong the electron lifetime.
Publisher: Wiley
Date: 06-02-2017
Publisher: American Chemical Society (ACS)
Date: 17-10-2022
Abstract: Transforming glyoxal to value-added glyoxylic acid (GA) is highly desirable but challenging due to the uncontrollable over-oxidation. In this work, we report on a first demonstration of semi-oxidation of glyoxal with high selectivity (86.5%) and activity on WO
Publisher: Wiley
Date: 21-07-2016
No related grants have been discovered for Huajun Zheng.