Component leaching of water oxidation electrocatalysts

IF 22.7 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Infomat Pub Date : 2024-07-16 DOI:10.1002/inf2.12609

Gao Chen, Yanping Zhu, Sixuan She, Zezhou Lin, Hainan Sun, Haitao Huang

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Abstract

Most electrocatalysts are known to experience structural change during the oxygen evolution reaction (OER) process. Considerable endeavors have been dedicated thus far to comprehending the catalytic process and uncovering the underlying mechanism. During the dynamic evolution of catalyst structure, component leaching of electrocatalysts is the most common phenomenon. This article offers a concise overview of recent findings and developments related to the leaching phenomena in the OER process in terms of fundamental understanding of leaching, advanced characterization techniques used to investigate leaching, leaching of inactive components, and leaching of active components. Leaching behaviors and the induced effects in various kinds of OER catalysts are discussed, progress in manipulating leaching amount/degree toward a tunable surface evolution is spotlighted, and finally, three representative types of structure transformations induced by leaching metastable species in OER condition are proposed. By understanding the process of component leaching in the OER, it will provide more guidance for the rational design of superior electrocatalysts.

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水氧化电催化剂的成分沥滤

众所周知，大多数电催化剂在氧进化反应（OER）过程中都会发生结构变化。迄今为止，人们已经为理解催化过程和揭示其潜在机理做出了大量努力。在催化剂结构的动态演化过程中，电催化剂的组分浸出是最常见的现象。本文从浸出的基本认识、用于研究浸出的先进表征技术、非活性成分的浸出和活性成分的浸出等方面，简要概述了与 OER 过程中浸出现象有关的最新发现和发展。讨论了各种 OER 催化剂中的浸出行为和诱导效应，重点介绍了在操纵浸出量/浸出度以实现可调表面演化方面取得的进展，最后提出了在 OER 条件下，浸出可迁移物种诱导的三种代表性结构转变类型。通过了解 OER 中的组分浸出过程，将为合理设计优异的电催化剂提供更多指导。

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来源期刊

Infomat MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

37.70

自引率

3.10%

发文量

111

审稿时长

8 weeks

期刊介绍： InfoMat, an interdisciplinary and open-access journal, caters to the growing scientific interest in novel materials with unique electrical, optical, and magnetic properties, focusing on their applications in the rapid advancement of information technology. The journal serves as a high-quality platform for researchers across diverse scientific areas to share their findings, critical opinions, and foster collaboration between the materials science and information technology communities.