尖晶石氧化物促进水氧化反应的电化学表面重建

IF 13.1 1区化学 Q1 CHEMISTRY, PHYSICAL

ACS Catalysis Pub Date : 2025-05-05 DOI:10.1021/acscatal.5c01964

Yuxin Li, Zhe Zhang, Yilin Yang, Chunguang Li, Zhan Shi, Shouhua Feng

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引用次数: 0

摘要

水电解为纯氢生产提供了可能性，这是一种被广泛认为是碳中和和环保的化石燃料替代品的方法。然而，阳极的析氧反应（OER）本身存在动力学缓慢和效率低的问题。尖晶石氧化物因其成本低、价态可调、成分丰富而被广泛研究，但其作为有前途的OER电催化剂的发展仍然受到活性位点暴露有限和内在活性差的阻碍。一般来说，许多过渡金属基氧化物（TMOs）在高阳极电位下会发生表面重构，而表面重构的高价价金属氢氧化物（mooh）被认为是真正的活性物质。因此，了解电子结构与动态重构能力之间的关系对于提高电催化性能至关重要。本文综述了近年来尖晶石氧化物表面重构调制的研究进展，并介绍了可视化监测这一动态过程的先进技术。此外，本文还指出了尖晶石氧化物表面行为研究中存在的挑战和潜在的研究方向。本文旨在为尖晶石型氧化物的表面重构提供新的见解，并为设计高效耐用的OER电催化剂提供有价值的指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Manipulation of Electrochemical Surface Reconstruction on Spinel Oxides for Boosted Water Oxidation Reaction

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Manipulation of Electrochemical Surface Reconstruction on Spinel Oxides for Boosted Water Oxidation Reaction

Water electrolysis presents possibilities for pure hydrogen production, a method widely recognized as a carbon-neutral and ecofriendly substitute for fossil fuels. However, the oxygen evolution reaction (OER) at the anode suffers from intrinsically sluggish kinetics and low efficiency. Spinel oxides are widely studied due to their low cost, tunable valence states, and rich compositions, but their development as promising OER electrocatalysts is still impeded by limited exposure of active sites and poor intrinsic activity. In general, many transition metal-based oxides (TMOs) would undergo surface reconstruction under high anodic potentials, and the reconstructed high-valence metal oxyhydroxides (MOOHs) on the surface are considered to be the true active species. Hence, understanding the relationships between electronic structures and dynamic reconstruction ability plays a crucial role in enhancing electrocatalytic performance. In this review, recent progress in modulating surface reconstruction of spinel oxides is comprehensively summarized, accompanied by advanced techniques to visually monitor this dynamic process. Furthermore, some remaining challenges and potential perspectives to tailor the surface behavior of spinel oxides are also pointed out. This review aims to offer insights into surface reconstruction on spinel-type oxides and provide valuable guidelines for the design of efficient and durable OER electrocatalysts.

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来源期刊

ACS Catalysis CHEMISTRY, PHYSICAL-

CiteScore

20.80

自引率

6.20%

发文量

1253

审稿时长

1.5 months

期刊介绍： ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels. The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.