Oxygen vacancy–based metal oxides photoanodes in photoelectrochemical water splitting

Materials Today Sustainability, Journal Year: 2022, Volume and Issue: 18, P. 100118 - 100118

Published: Feb. 5, 2022

Language: Английский

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Eutectic electrolyte based on N-methylacetamide for highly reversible zinc–iodine battery

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(3), P. 1192 - 1200

Published: Jan. 1, 2022

A eutectic electrolyte strategy is proposed for zinc-iodine battery. Both the reasonable solvated structure and suppressed generation of I 3 − as an intermediate product achieve high reversible /I 0 conversion.

Language: Английский

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Effective electronic tuning of Pt single atomsviaheterogeneous atomic coordination of (Co,Ni)(OH)₂for efficient hydrogen evolution

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 16(3), P. 1035 - 1048

Published: Dec. 21, 2022

A Pt 1 /(Co,Ni)(OH) 2 /C single-atom electro-catalyst efficiently splits water for H generation, via balanced water-dissociation and -formation steps from the synergistic effect of surface-defective (Co,Ni)(OH) electronically tuned sites.

Language: Английский

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CeO2 as an “electron pump” to boost the performance of Co4N in electrocatalytic hydrogen evolution, oxygen evolution and biomass oxidation valorization

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 325, P. 122364 - 122364

Published: Jan. 3, 2023

Language: Английский

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Charge separation via synergy of homojunction and electrocatalyst in BiVO4 for photoelectrochemical water splitting

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 334, P. 122865 - 122865

Published: May 9, 2023

Language: Английский

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Perovskite‐Based Electrocatalysts for Cost‐Effective Ultrahigh‐Current‐Density Water Splitting in Anion Exchange Membrane Electrolyzer Cell

Small Methods, Journal Year: 2022, Volume and Issue: 6(11)

Published: Oct. 17, 2022

Abstract Development of cost‐effective water splitting technology that allows low‐overpotential operation at high current density with non‐precious catalysts is the key for large‐scale hydrogen production. Herein, it demonstrated versatile perovskite‐based oxides, usually applied operating low and room temperature in alkaline solution, can be developed into low‐cost, highly active durable electrocatalysts densities a zero‐gap anion exchange membrane electrolyzer cell (AEMEC). The composite perovskite mixed phases Ruddlesden–Popper single as anode AEMEC exhibits promising performance an overall water‐splitting 2.01 A cm −2 voltage only 2.00 V 60 °C stable performance. elevated to promote diffusion boosts oxygen evolution kinetics by enhancing lattice‐oxygen participation. bifunctionality perovskites further promises more symmetrical configuration, primary both electrodes delivers 3.00 2.42 V. This work greatly expands use robust industrial great practical application merit.

Language: Английский

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Phase Evolution on the Hydrogen Adsorption Kinetics of NiFe‐Based Heterogeneous Catalysts for Efficient Water Electrolysis

Small Methods, Journal Year: 2023, Volume and Issue: 7(4)

Published: Feb. 19, 2023

Transition metal layered double hydroxides, especially nickel-iron hydroxide (NiFe-LDH) shows significant advancement as efficient oxygen evolution reaction (OER) electrocatalyst but also plays a momentous role precursor for NiFe-based hydrogen (HER) catalysts. Herein, simple strategy developing Ni-Fe-derivative electrocatalysts via phase of NiFe-LDH under controllable annealing temperatures in an argon atmosphere is reported. The optimized catalyst annealed at 340 o C (denoted NiO/FeNi3 ) exhibits superior HER properties with ultralow overpotential 16 mV@10 mA cm-2 . Density functional theory simulation and situ Raman analyses reveal that the excellent can be attributed to strong electronic interaction interface metallic FeNi3 semiconducting NiO, which optimizes H2 O H adsorption energies OER catalytic processes. This work will provide rational insights into subsequent development related other corresponding compounds LDH-based precursors.

Language: Английский

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Ni3N: A multifunctional material for energy storage and electrocatalysis

Materials Today Energy, Journal Year: 2022, Volume and Issue: 26, P. 101001 - 101001

Published: April 18, 2022

Language: Английский

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Efficient electrocatalysis for oxygen evolution: W-doped NiFe nanosheets with oxygen vacancies constructed by facile electrodeposition and corrosion

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139104 - 139104

Published: Sept. 9, 2022

Language: Английский

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Precious Metal Free Hydrogen Evolution Catalyst Design and Application

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(9), P. 5617 - 5667

Published: April 25, 2024

The quest to identify precious metal free hydrogen evolution reaction catalysts has received unprecedented attention in the past decade. In this Review, we focus our recent developments reactions acidic and alkaline electrolyte owing their relevance commercial near-commercial low-temperature electrolyzers. We provide a detailed review critical analysis of catalyst activity stability performance measurements metrics commonly deployed literature, as well best practices for experimental (both half-cell three-electrode configurations two-electrode device testing). particular, discuss transition from laboratory-scale (HER) those single cells, which is aspect crucial scaling up laboratory industrial settings but often overlooked. Furthermore, numerous design strategies across HER literature. Subsequently, showcase some most investigated families catalysts; molybdenum disulfide-based, phosphides, carbides electrolyte; nickel phosphides alkaline. This includes comprehensive comparing between several materials highlighting stagnation with regards enhancing intrinsic catalysts. Finally, summarize future directions recommendations field area electrocatalysis.

Language: Английский

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