Strategies to improve the activity and stability of Fe-based catalysts for oxygen electrocatalysis

IF 6.5 1区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Catalysis Pub Date : 2025-10-06 DOI:10.1016/j.jcat.2025.116462

Qiuyue Lu, Zhenlu Wang, Jingqi Guan

引用次数: 0

Abstract

Iron-based catalysts show excellent potential in the field of oxygen electrocatalysis. However, the poor electroconductivity, low activity, and limited durability of Fe-based catalysts severely limit their applications. Rational design of high-performance Fe-based catalysts depends critically on a profound understanding of dynamic mechanisms under electrochemical conditions. Here, a fundamental understanding of dynamic oxygen electrocatalysis mechanisms for Fe-based oxygen electrocatalysts is first raised by combining in situ characterizations and theoretical simulations. By protruding structure–activity relationships, rational regulation strategies are explicitly put forward to facilitate the design of high-performance Fe-based oxygen electrocatalysts, including doping engineering, defect/vacancy engineering, and strain engineering. Furthermore, the degradation mechanisms and stability enhancement strategies are introduced. Finally, future perspectives and challenges are discussed.

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提高铁基氧电催化催化剂活性和稳定性的策略

铁基催化剂在氧电催化领域具有良好的应用前景。然而，铁基催化剂导电性差、活性低、耐久性有限，严重限制了其应用。高性能铁基催化剂的合理设计关键取决于对电化学条件下动力学机制的深刻理解。本文首先通过原位表征和理论模拟相结合的方法，对铁基氧电催化剂的动态氧电催化机理有了基本的认识。通过突出构效关系，明确提出了合理的调控策略，包括掺杂工程、缺陷/空位工程和应变工程，为高性能铁基氧电催化剂的设计提供了依据。此外，还介绍了降解机理和增强稳定性的策略。最后，讨论了未来的展望和挑战。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Catalysis 工程技术-工程：化工

CiteScore

12.30

自引率

5.50%

发文量

447

审稿时长

31 days

期刊介绍： The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes. The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods. The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.