Recent advances in transition-metal-sulfide-based bifunctional electrocatalysts for overall water splitting

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(9), P. 5320 - 5363

Published: Jan. 1, 2021

This review summarizes recent advances relating to transition metal sulfide (TMS)-based bifunctional electrocatalysts, providing guidelines for the design and fabrication of TMS-based catalysts practical application in water electrolysis.

Language: Английский

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Nanostructured Co-based bifunctional electrocatalysts for energy conversion and storage: current status and perspectives

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(32), P. 18674 - 18707

Published: Jan. 1, 2019

Current popular nanostructured Co-based bifunctional electrocatalysts developed for HER/OER and ORR/OER in water splitting oxygen electrodes are critically reviewed discussed.

Language: Английский

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Cr‐Doped FeNi–P Nanoparticles Encapsulated into N‐Doped Carbon Nanotube as a Robust Bifunctional Catalyst for Efficient Overall Water Splitting

Advanced Materials, Journal Year: 2019, Volume and Issue: 31(15)

Published: Feb. 21, 2019

Exploring high-efficiency, stable, and cost-effective bifunctional electrocatalysts for overall water splitting is greatly desirable challenging. Herein, a newly designed hybrid catalyst with Cr-doped FeNi-P nanoparticles encapsulated into N-doped carbon nanotubes (Cr-doped FeNi-P/NCN) unprecedented electrocatalytic activity developed by simple one-step heating treatment. The as-synthesized FeNi-P/NCN moderate Cr doping exhibits admirable oxygen evolution reaction hydrogen activities overpotentials of 240 190 mV to reach current density 10 mA cm-2 in 1 m KOH solution. When used as catalyst, it needs only 1.50 V give , which superior its typically integrated Pt/C RuO2 counterparts (1.54 @ ). Density functional theory calculation confirms that FeNi-host can effectively alter the relative Gibbs adsorption energy reduces theoretical overpotential. Additionally, synergetic effects between NCNs are regarded significant contributors accelerate charge transfer promote catalysts.

Language: Английский

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Ternary metal sulfides for electrocatalytic energy conversion

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(16), P. 9386 - 9405

Published: Jan. 1, 2019

Recent developments in various types of ternary metal sulfides (TMSs) for electrocatalytic energy conversion are summarized and discussed.

Language: Английский

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Construction of complex copper-cobalt selenide hollow structures as an attractive battery-type electrode material for hybrid supercapacitors

Chemical Engineering Journal, Journal Year: 2020, Volume and Issue: 402, P. 126241 - 126241

Published: July 12, 2020

Language: Английский

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Transition metal-based electrocatalysts for overall water splitting

Chinese Chemical Letters, Journal Year: 2021, Volume and Issue: 32(9), P. 2597 - 2616

Published: Feb. 3, 2021

Language: Английский

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Fabrication of Polyoxometalate Anchored Zinc Cobalt Sulfide Nanowires as a Remarkable Bifunctional Electrocatalyst for Overall Water Splitting

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(46)

Published: Aug. 27, 2021

Abstract The advancement of a naturally rich and effective bifunctional substance for hydrogen oxygen evolution reaction is crucial to enhance fuel production efficiency via the electrolysis process. Herein, facile scalable hydrothermal synthesis electrocatalyst polyoxometalate anchored zinc cobalt sulfide nanowire on Ni‐foam (NF) overall water splitting reported first time. electrochemical analysis POM@ZnCoS/NF displays significantly low HER OER overpotentials 170/337 200/300 mV attain current density 10/40 20/50 mA cm −2 , respectively, demonstrating notable performance toward H 2 O in alkaline medium. Additionally, electrolyzer consisting anode cathode shows an appealing potential 1.56 V deliver 10 splitting. high electrocatalytic activity attributed modulation electronic chemical properties, increment electroactive sites electrochemically active surface area nanowires due anchorage nanoparticles. These results demonstrate advantage incorporation strategy design cost‐effective highly competent catalysts complete

Language: Английский

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Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(23)

Published: May 1, 2022

Abstract The development of robust nano‐ and microstructured catalysts on highly conductive substrates is an effective approach to produce active binder‐free electrodes for energy conversion storage applications. As a result, nanostructured with designs have abundant advantages that provide superior electrocatalytic performance; these include more exposed sites, large surface area, strong adhesion substrates, facile charge transfer, high conductivity, intrinsic catalytic activity, fine‐tuning its electronic nature through nanostructure modification. Notably, the interface chemistry electrocatalyst plays significant role in their optimized activity stability. This review provides overview recent progress catalysts, such as one, two, 3D water splitting via hydrogen evolution reaction oxygen reaction, beyond. Furthermore, this focuses current challenges synthesis strategies electrodes, focus impact functional property relationships enhanced bifunctional performance. Finally, outlook future advances provided.

Language: Английский

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Recent Advances in High-Efficiency Electrocatalytic Water Splitting Systems

Electrochemical Energy Reviews, Journal Year: 2023, Volume and Issue: 6(1)

Published: June 20, 2023

Language: Английский

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Strain‐Activated Copper Catalyst for pH‐Universal Hydrogen Evolution Reaction

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(18)

Published: Feb. 4, 2022

Abstract Developing low‐cost and high‐activity pH‐universal hydrogen evolution reaction (HER) catalysts is very crucial to the industrialization of water electrolysis. However, high price, low yield, poor stability current HER make them difficult meet practical requirements. Herein, a plasma spraying technique employed prepare self‐supported Cu with tensile strain for first time. The upshifts d‐band Cu, improves dissociation H * adsorption, eventually intrinsic catalytic activity. As such, electrode achieves overpotentials 182 mV in 0.5 m 2 SO 4 , 261 1 M PBS, 121 KOH at 10 mA cm –2 . In addition, also performs well densities, A are much lower than those Pt foil acid, neutral, alkaline solutions.

Language: Английский

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