The electrochemical synthesis of chemicals and fuel feedstocks has been demonstrated to be a sustainable and “green” alternative to traditional chemical engineering, where oxygen evolution reaction (OER) plays a vital role in coupling with various cathodic reactions. While tremendous attention, involving both research and review topics, has been focused on pushing the limit of OER catalysts’ activity, the long-term stability of OER catalysts, which may play an even more important role in large-scale electrolysis industrialization, has been much less emphasized. Until this point, few systematic strategies for developing OER catalysts with industrially relevant durability have been reported. In this review, critical mechanisms that could influence OER stability are summarized, including surface reconstruction, lattice oxygen evolution, and the dissolution-redeposition process of catalysts. Moreover, to bridge the gap between lab-scale OER tests and large-scale electrocatalysis applications, stability considerations in electrolyzer design for long-term operation are also discussed in detail. This review provides catalyst and reactor design principles for overcoming OER stability challenges and will focus more attention from the field on the great importance of OER stability as well as future large-scale electrocatalysis applications.

化学品和燃料原料的电化学合成已被证明是传统化学工程的可持续和“绿色”替代方案，其中析氧反应 (OER) 在与各种阴极反应的耦合中起着至关重要的作用。虽然涉及研究和评论主题的巨大关注一直集中在推动 OER 催化剂活性的极限上，但 OER 催化剂的长期稳定性可能在大规模电解工业化中发挥更重要的作用。很少强调。到目前为止，几乎没有报道过开发具有工业相关耐久性的 OER 催化剂的系统策略。在这篇综述中，总结了可能影响 OER 稳定性的关键机制，包括表面重建、晶格氧析出、以及催化剂的溶解-再沉积过程。此外，为了弥合实验室规模 OER 测试和大规模电催化应用之间的差距，还详细讨论了长期运行电解槽设计中的稳定性考虑。该综述提供了克服 OER 稳定性挑战的催化剂和反应器设计原则，并将该领域的更多注意力集中在 OER 稳定性的重要性以及未来的大规模电催化应用上。