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

Energy & environment materials, Journal Year: 2022, Volume and Issue: 6(5)

Published: May 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.

Language: Английский

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The reformation of catalyst: From a trial-and-error synthesis to rational design

Nano Research, Journal Year: 2023, Volume and Issue: 17(4), P. 3261 - 3301

Published: Sept. 27, 2023

Language: Английский

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Isolating Single and Few Atoms for Enhanced Catalysis

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(39)

Published: May 17, 2022

Abstract Atomically dispersed metal catalysts have triggered great interest in the field of catalysis owing to their unique features. Isolated single or few atoms can be anchored on substrates via chemical bonding space confinement maximize atom utilization efficiency. The key challenge lies precisely regulating geometric and electronic structure active centers, thus significantly influencing catalytic properties. Although several reviews been published preparation, characterization, application single‐atom (SACs), comprehensive understanding SACs, dual‐atom (DACs), atomic clusters has never systematically summarized. Here, recent advances engineering local environments state‐of‐the‐art DACs, for enhanced performance are highlighted. Firstly, various synthesis approaches presented. Then, special attention is focused elucidation terms state coordination structure. Furthermore, a summary isolated applications thermocatalysis, electrocatalysis, photocatalysis provided. Finally, potential challenges future opportunities this emerging This review will pave way regulate microenvironment site boosting processes.

Language: Английский

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Covalent organic frameworks towards photocatalytic applications: Design principles, achievements, and opportunities

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 475, P. 214882 - 214882

Published: Oct. 14, 2022

Language: Английский

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Supported Ruthenium Single‐Atom and Clustered Catalysts Outperform Benchmark Pt for Alkaline Hydrogen Evolution

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(35)

Published: April 8, 2023

Guaranteeing satisfactory catalytic behavior while ensuring high metal utilization has become the problem that needs to be addressed when designing noble-metal-based catalysts for electrochemical reactions. Here, well-dispersed ruthenium (Ru) based clusters with adjacent Ru single atoms (SAs) on layered sodium cobalt oxide (Ru/NC) are demonstrated as a superb electrocatalyst alkaline HER. The Ru/NC catalyst demonstrates an activity increase by factor of two relative commercial Pt/C. Operando characterizations in conjunction density functional theory (DFT) simulations uncover origin superior and establish structure-performance relationship, is, under HER condition, real active species SAs metallic supported NC substrate. excellent can understood spatially decoupled water dissociation hydrogen desorption mechanism, where substrate accelerates rate, generated H intermediates would then migrate or recombine have H2 evolution. More importantly, comparing forms sites, it is cluster dominates activity.

Language: Английский

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Race on engineering noble metal single-atom electrocatalysts for water splitting

International Journal of Hydrogen Energy, Journal Year: 2022, Volume and Issue: 47(31), P. 14257 - 14279

Published: March 23, 2022

Language: Английский

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Dual‐Metal Atom Electrocatalysts: Theory, Synthesis, Characterization, and Applications

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 12(3)

Published: Dec. 5, 2021

Abstract Electrochemical clean energy conversion and the production of sustainable chemicals are critical in journey to realizing a truly society. To progress electrochemical storage devices commercialization, improving electrocatalyst performance cost utmost importance. Research into dual‐metal atom catalysts (DACs) is rising prominence due advantages these sites over single‐metal (SACs), such as breaking scaling relationships for adsorption reaction intermediates synergistic effects. This review provides an examination fundamental theoretical principles experimental DACs idealized half cells, well fuel before proceeding analyze methods used producing identifying DACs. Current challenges potential future research directions also discussed.

Language: Английский

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Adjacent Fe Site boosts electrocatalytic oxygen evolution at Co site in single-atom-catalyst through a dual-metal-site design

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(4), P. 1685 - 1696

Published: Jan. 1, 2023

In this work, we propose a unique reaction mechanism that the Fe site OOH serves as auxiliary to accelerate formation of Co active species, hence accelerating rate-determining step OER.

Language: Английский

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Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium

Carbon Energy, Journal Year: 2022, Volume and Issue: 5(2)

Published: Sept. 26, 2022

Abstract The establishment of efficient oxygen evolution electrocatalysts is great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure constructed as electrocatalyst. Significantly, the obtained NiRu 0.08 ‐MOF doping Ru only needs overpotential 187 mV at 10 mA cm −2 Tafel slop 40 dec −1 in 0.1 M KOH for reaction, can work continuously more than 300 h. Ultrahigh mass activity achieved, reaching 56.7 A g 200 mV, which 36 times higher that commercial RuO 2 . X‐ray adsorption spectroscopy density function theory calculations reveal on metal sites MOFs expected to optimize nickel sites, thus improving conductivity catalyst optimizing energy intermediates, resulting significant optimization electrocatalytic performance. This study could provide new avenue design stable MOF electrocatalysts.

Language: Английский

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Pd single-atom decorated CdS nanocatalyst for highly efficient overall water splitting under simulated solar light

Applied Catalysis B Environment and Energy, Journal Year: 2021, Volume and Issue: 304, P. 121000 - 121000

Published: Dec. 8, 2021

Language: Английский

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