Non-noble metal catalysts are suitable for the oxygen evolution reaction (OER) owing to their original oxidation states and oxygen coordination environments, which can regulate the adsorption of OH⁻ at the active sites to facilitate the formation of oxygen-containing intermediates. However, the difficulties encountered in the conversion of intermediates (M–OH, M–O, and M–OOH) lead to low efficiency. Decorations of transition metal catalysts with foreign elements are regarded effective solutions, among which decoration with Ce-based materials (CeBM) is the most prominent. This review investigates the current status and future prospects of CeBM-decorated transition metal electrocatalysts. By presenting a thorough account of the latest development, we aim to set a common ground for the research community for a deeper understanding of the roles of CeBM that originate from its unique electronic structure and abundant oxygen vacancies. Moreover, we wish to provide our own perspectives as to how to further the design of Ce-based OER electrocatalysts and where such catalysts may be applied in fields beyond electrocatalysis.

非贵金属催化剂由于其原始的氧化态和氧配位环境，适用于析氧反应（OER），可以调节 OH ^-的吸附。在活性位点促进含氧中间体的形成。然而，中间体（M-OH、M-O 和 M-OOH）转化过程中遇到的困难导致效率低下。用外来元素装饰过渡金属催化剂被认为是有效的解决方案，其中以铈基材料（CeBM）装饰最为突出。本综述调查了 CeBM 修饰的过渡金属电催化剂的现状和未来前景。通过全面介绍最新发展，我们旨在为研究界建立一个共同基础，以更深入地了解 CeBM 的作用，这些作用源于其独特的电子结构和丰富的氧空位。而且，