Recent progress made in the mechanism comprehension and design of electrocatalysts for alkaline water splitting

Energy & Environmental Science, Год журнала: 2019, Номер 12(9), С. 2620 - 2645

Опубликована: Янв. 1, 2019

Alkaline water splitting is an attractive method for sustainable hydrogen production.

Язык: Английский

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Non-noble metal-nitride based electrocatalysts for high-performance alkaline seawater electrolysis

Nature Communications, Год журнала: 2019, Номер 10(1)

Опубликована: Ноя. 8, 2019

Abstract Seawater is one of the most abundant natural resources on our planet. Electrolysis seawater not only a promising approach to produce clean hydrogen energy, but also great significance desalination. The implementation electrolysis requires robust and efficient electrocatalysts that can sustain splitting without chloride corrosion, especially for anode. Here we report three-dimensional core-shell metal-nitride catalyst consisting NiFeN nanoparticles uniformly decorated NiMoN nanorods supported Ni foam, which serves as an eminently active durable oxygen evolution reaction alkaline electrolysis. Combined with nanorods, have achieved industrially required current densities 500 1000 mA cm −2 at record low voltages 1.608 1.709 V, respectively, overall 60 °C. This discovery significantly advances development large-scale production.

Язык: Английский

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Metal–Organic Framework-Based Catalysts with Single Metal Sites

Chemical Reviews, Год журнала: 2020, Номер 120(21), С. 12089 - 12174

Опубликована: Май 1, 2020

Metal-organic frameworks (MOFs) are a class of distinctive porous crystalline materials constructed by metal ions/clusters and organic linkers. Owing to their structural diversity, functional adjustability, high surface area, different types MOF-based single sites well exploited, including coordinately unsaturated from nodes metallolinkers, as active species immobilized MOFs. Furthermore, controllable thermal transformation MOFs can upgrade them nanomaterials functionalized with single-atom catalysts (SACs). These unique features derivatives enable serve highly versatile platform for catalysis, which has actually been becoming rapidly developing interdisciplinary research area. In this review, we overview the recent developments catalysis at in emphasis on structures applications thermocatalysis, electrocatalysis, photocatalysis. We also compare results summarize major insights gained works providing challenges prospects emerging field.

Язык: Английский

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Transition metal-based bimetallic MOFs and MOF-derived catalysts for electrochemical oxygen evolution reaction

Energy & Environmental Science, Год журнала: 2021, Номер 14(4), С. 1897 - 1927

Опубликована: Янв. 1, 2021

The review summarizes transition metal-based bimetallic MOFs and their derived materials as electrocatalytic for the OER. mechanisms of OER probed by DFT calculation andin situcharacterization techniques are also discussed.

Язык: Английский

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Principles of Water Electrolysis and Recent Progress in Cobalt‐, Nickel‐, and Iron‐Based Oxides for the Oxygen Evolution Reaction

Angewandte Chemie International Edition, Год журнала: 2021, Номер 61(1)

Опубликована: Июнь 17, 2021

Water electrolysis that results in green hydrogen is the key process towards a circular economy. The supply of sustainable electricity and availability oxygen evolution reaction (OER) electrocatalysts are main bottlenecks for large-scale production hydrogen. A broad range OER have been explored to decrease overpotential boost kinetics this sluggish half-reaction. Co-, Ni-, Fe-based catalysts considered be potential candidates replace noble metals due their tunable 3d electron configuration spin state, versatility terms crystal electronic structures, as well abundance nature. This Review provides some basic principles water electrolysis, aspects OER, significant criteria development catalysts. It also insights on recent advances oxides brief perspective challenges electrolysis.

Язык: Английский

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Designing MOF Nanoarchitectures for Electrochemical Water Splitting

Advanced Materials, Год журнала: 2021, Номер 33(17)

Опубликована: Март 22, 2021

Abstract Electrochemical water splitting has attracted significant attention as a key pathway for the development of renewable energy systems. Fabricating efficient electrocatalysts these processes is intensely desired to reduce their overpotentials and facilitate practical applications. Recently, metal–organic framework (MOF) nanoarchitectures featuring ultrahigh surface areas, tunable nanostructures, excellent porosities have emerged promising materials highly active catalysts electrochemical splitting. Herein, most pivotal advances in recent research on engineering MOF are presented. First, design catalytic centers MOF‐based/derived summarized compared from aspects chemical composition optimization structural functionalization at atomic molecular levels. Subsequently, fast‐growing breakthroughs activities, identification sites, fundamental mechanisms thoroughly discussed. Finally, comprehensive commentary current primary challenges future perspectives its commercialization hydrogen production provided. Hereby, new insights into synthetic principles electrocatalysis designing utilization offered, thus further promoting prosperity wide range

Язык: Английский

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Metal–organic frameworks and their derivatives as electrocatalysts for the oxygen evolution reaction

Chemical Society Reviews, Год журнала: 2021, Номер 50(4), С. 2663 - 2695

Опубликована: Янв. 1, 2021

This review summarizes the recent progress on MOFs and their derivatives used for OER electrocatalysis in terms of morphology, composition structure–performance relationship.

Язык: Английский

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Comprehensive Understandings into Complete Reconstruction of Precatalysts: Synthesis, Applications, and Characterizations

Advanced Materials, Год журнала: 2021, Номер 33(32)

Опубликована: Май 29, 2021

Reconstruction induced by external environment (such as applied voltage bias and test electrolytes) changes catalyst component catalytic behaviors. Investigations of complete reconstruction in energy conversion recently receive intensive attention, which promote the targeted design top-performance materials with maximum utilization good stability. However, advantages reconstruction, its strategies, extensive applications have not achieved profound understandings summaries it deserves. Here, this review systematically summarizes several important advances for first time, includes 1) fundamental characteristics completely reconstructed catalysts, their principles, 2) types reconstruction-involved precatalysts oxygen evolution reaction catalysis wide pH solution, origins limited degree well strategies/principles toward 3) novel material synthesis other electrocatalysis fields, 4) advanced situ/operando or multiangle/level characterization techniques to capture dynamic processes real contributors. Finally, existing major challenges unexplored/unsolved issues on studying chemistry are summarized, an outlook further development is briefly proposed. This will arouse attention diverse fields.

Язык: Английский

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Facile Synthesis of Two‐Dimensional Iron/Cobalt Metal–Organic Framework for Efficient Oxygen Evolution Electrocatalysis

Angewandte Chemie International Edition, Год журнала: 2021, Номер 60(21), С. 12097 - 12102

Опубликована: Март 12, 2021

Abstract A facile synthesis is reported of two‐dimensional (2D) bimetallic (Fe/Co=1:2) metal–organic frameworks (MOF, ca. 2.2 nm thick) via simple stirring the reaction mixture Fe/Co salts and 1,4‐benzene dicarboxylic acid (1,4‐BDC) in presence triethylamine water at room temperature. The mechanism 2D, rather than bulk, MOF was revealed by studying role each component mixture. It found that these 2D MOF‐Fe/Co(1:2) exhibited excellent electrocatalytic activity for oxygen evolution (OER) under basic conditions. disclosed both experimental results density functional theory (DFT) calculation. morphology co‐doping contributed to superior OER performance MOF‐Fe/Co(1:2). efficient synthetic method suitable mass production future commercialization with low cost high yield.

Язык: Английский

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Electrochemically active sites inside crystalline porous materials for energy storage and conversion

Chemical Society Reviews, Год журнала: 2020, Номер 49(8), С. 2378 - 2407

Опубликована: Янв. 1, 2020

This review provides references for the preparation of electroactive CPMs via rational design and modulation active sites space around them, their application in electrochemical energy storage conversion systems.

Язык: Английский

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