Electrochemical Water Splitting: Bridging the Gaps Between Fundamental Research and Industrial Applications

Energy & environment materials, Год журнала: 2022, Номер 6(5)

Опубликована: Май 28, 2022

Electrochemical water splitting represents one of the most promising technologies to produce green hydrogen, which can help realize goal achieving carbon neutrality. While substantial efforts on a laboratory scale have been made for understanding fundamental catalysis and developing high‐performance electrocatalysts two half‐reactions involved in electrocatalysis, much less attention has paid doing relevant research larger scale. For example, few such researches done an industrial Herein, we review very recent endeavors bridge gaps between applications electrolysis. We begin by introducing fundamentals electrochemical then present comparisons testing protocol, figure merit, catalyst interest, manufacturing cost industry‐based water‐electrolysis research. Special is tracking surface reconstruction process identifying real catalytic species under different conditions, highlight significant distinctions corresponding mechanisms. Advances designs industry‐relevant electrolysis are also summarized, reveal progress moving practical forward accelerating synergies material science engineering. Perspectives challenges electrocatalyst design strategies proposed finally further lab‐scale large‐scale electrocatalysis applications.

Язык: Английский

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Ni2P/NiMoP heterostructure as a bifunctional electrocatalyst for energy-saving hydrogen production

eScience, Год журнала: 2021, Номер 1(1), С. 69 - 74

Опубликована: Сен. 21, 2021

Electrochemical water splitting is a sustainable and feasible strategy for hydrogen production but hampered by the sluggish anodic oxygen evolution reaction (OER). Herein, an effective approach introduced to significantly decrease cell voltage replacing OER with urea oxidation (UOR). A Ni2P/NiMoP nanosheet catalyst hierarchical architecture uniformly grown on nickel foam (NF) substrate through simple hydrothermal phosphorization method. The achieves impressive HER activity, low overpotential of only 22 mV at 10 mA cm–2 Tafel slope 34.5 dec–1. In addition, reduced from 1.49 V 1.33 after introduction 0.33 M urea. Notably, two-electrode electrolyzer employing as bifunctional exhibits current density 1.35 excellent long-term durability 80 h.

Язык: Английский

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Recent advances in MOF-derived carbon-based nanomaterials for environmental applications in adsorption and catalytic degradation

Chemical Engineering Journal, Год журнала: 2021, Номер 427, С. 131503 - 131503

Опубликована: Авг. 8, 2021

Язык: Английский

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Progress in Hydrogen Production Coupled with Electrochemical Oxidation of Small Molecules

Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(51)

Опубликована: Окт. 6, 2022

Abstract The electrochemical oxidation of small molecules to generate value‐added products has gained enormous interest in recent years because the advantages benign operation conditions, high conversion efficiency and selectivity, absence external oxidizing agents, eco‐friendliness. Coupling replace oxygen evolution reaction (OER) at anode hydrogen (HER) cathode an electrolyzer would simultaneously realize generation high‐value chemicals or pollutant degradation highly efficient production hydrogen. This Minireview presents introduction on small‐molecule choice design strategies electrocatalysts as well breakthroughs achieved Finally, challenges future orientations are highlighted.

Язык: Английский

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PEM water electrolysis for hydrogen production: fundamentals, advances, and prospects

Carbon Neutrality, Год журнала: 2022, Номер 1(1)

Опубликована: Июнь 2, 2022

Hydrogen, as a clean energy carrier, is of great potential to be an alternative fuel in the future. Proton exchange membrane (PEM) water electrolysis hailed most desired technology for high purity hydrogen production and self-consistent with volatility renewable energies, has ignited much attention past decades based on current density, greater efficiency, small mass-volume characteristic, easy handling maintenance. To date, substantial efforts have been devoted development advanced electrocatalysts improve electrolytic efficiency reduce cost PEM electrolyser. In this review, we firstly compare alkaline (AWE), solid oxide (SOE), highlight advantages electrolysis. Furthermore, summarize recent progress including evolution reaction (HER) oxygen (OER) acidic electrolyte. We also introduce other cell components (including electrode assembly, collector, bipolar plate). Finally, challenges outlook future application are provided.

Язык: Английский

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Interfacial Engineering of Ni₃N/Mo₂N Heterojunctions for Urea-Assisted Hydrogen Evolution Reaction

ACS Catalysis, Год журнала: 2023, Номер 13(7), С. 4091 - 4100

Опубликована: Март 9, 2023

The urea oxidation reaction (UOR) is considered as an alternative to the oxygen evolution for high-efficiency hydrogen production. However, molecule relatively complex, containing both electron-donating amino (−NH2) and electron-withdrawing carbonyl (C═O) groups, understanding influence of different functional groups on adsorption behavior conducive rational design preparation high-performance UOR catalysts. Herein, we report a simple synthesis Ni3N/Mo2N heterostructure systematic investigation urea-assisted electrolytic Both temperature-programmed desorption theoretical calculations decipher that −NH2 C═O are more easily adsorbed Ni3N Mo2N, respectively. Meanwhile, could combine enhance advantages individual components, optimizing urea. Besides, this also beneficial improving performance. As expected, in two-electrode water electrolyzer utilizing bifunctional catalysts, production can readily occur at evidently lower voltage (1.36 V@10 mA cm–2), which much than traditional electrolysis, well 7 times higher rate achieved.

Язык: Английский

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Exploration of metal organic frameworks and covalent organic frameworks for energy-related applications

Coordination Chemistry Reviews, Год журнала: 2022, Номер 477, С. 214968 - 214968

Опубликована: Дек. 9, 2022

Язык: Английский

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Trimetallic metal–organic frameworks and derived materials for environmental remediation and electrochemical energy storage and conversion

Coordination Chemistry Reviews, Год журнала: 2022, Номер 461, С. 214505 - 214505

Опубликована: Март 18, 2022

Язык: Английский

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Functional Metal/Carbon Composites Derived from Metal–Organic Frameworks: Insight into Structures, Properties, Performances, and Mechanisms

ACS Catalysis, Год журнала: 2023, Номер 13(3), С. 1759 - 1790

Опубликована: Янв. 17, 2023

Metal–organic frameworks (MOFs) have extensively emerged as promising templates/precursors to prepare functional derivatives for various purposes because of their ultrahigh porosity, large specific surface area, and excellent user-configuration flexibility. Among these derivatives, MOFs-derived metal/carbon composites surmount the shortcomings individual components produce synergistic effects, showing great potential in environmental remediation energy storage conversion. Herein, this work systematically discusses synthetic strategies from perspective different MOF precursors, including pristine MOFs, heteroatom-doped MOFs composited with substrates. The unique advantages exceptional stability, conductivity, catalytic activity are then particularly summarized. On basis advantages, recent progress environment fields is elaborated, special emphasis on elucidation mechanisms. Finally, challenges opportunities future research presented, which expected provide references design multipurpose composites.

Язык: Английский

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Dual-metal-organic-framework derived CoP/MoP hybrid as an efficient electrocatalyst for acidic and alkaline hydrogen evolution reaction

Journal of Colloid and Interface Science, Год журнала: 2022, Номер 631, С. 147 - 153

Опубликована: Ноя. 4, 2022

Язык: Английский

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