NiFe层状双氢氧化物催化析氧稳定性研究进展
Research Progress on the Oxygen Evolution Stability of NiFe Layered Double Hydroxides
徐联聪 1李莉1
作者信息
- 1. 重庆大学化学化工学院，重庆，401331
- 折叠
摘要
NiFe层状双氢氧化物（NiFe-LDH）是碱性析氧反应（OER）中典型的非贵金属催化剂，但长期运行中的稳定性不足问题限制了其实际应用。本文综述NiFe-LDH的催化OER稳定性研究进展，讨论OER条件下结构演化与稳定性衰减的关系，归纳电化学测试、原位/反应后表征、金属溶出分析和理论模拟等评价方法，总结局部酸化、Fe溶解-迁移-再沉积、Fe流失诱发相分离及界面失效等失活机制，并分析超薄化、组分优化、动态再沉积调控、缺陷工程和自支撑电极构筑等稳定性提升策略，最后，本文指出未来应面向真实电解水工况，结合原位/工况表征和理论模拟，建立"失活机制-评价方法-稳定化策略"相互对应的研究框架，为高稳定NiFe-LDH及相关非贵金属OER催化剂的设计提供参考。
Abstract
NiFe layered double hydroxide (NiFe-LDH) is a typical non-noble-metal catalyst for the alkaline oxygen evolution reaction (OER), but its insufficient stability during long-term operation limits its practical application. This paper reviews the research progress on the catalytic OER stability of NiFe-LDH, discusses the relationship between structural evolution and stability decay under OER conditions, summarizes evaluation methods including electrochemical testing, in situ/post-reaction characterization, metal dissolution analysis, and theoretical simulation, and summarizes deactivation mechanisms such as local acidification, Fe dissolution-migration-redeposition, Fe-loss-induced phase separation, and interfacial failure. In addition, stability enhancement strategies including ultrathinning, composition optimization, dynamic redeposition regulation, defect engineering, and self-supported electrode construction are analyzed. Finally, this paper points out that future research should focus on real water electrolysis operating conditions, combine in situ/operando characterization with theoretical simulation, and establish a corresponding research framework of "deactivation mechanism-evaluation method-stabilization strategy", thereby providing a reference for the design of highly stable NiFe-LDH and related non-noble-metal OER catalysts.关键词
电解水制氢/析氧反应/层状双氢氧化物/失活机理/稳定性Key words
water electrolysis for hydrogen production/oxygen evolution reaction/NiFe layered double hydroxides/deactivation mechanisms/stability引用本文复制引用
徐联聪,李莉.NiFe层状双氢氧化物催化析氧稳定性研究进展[EB/OL].(2026-05-19)[2026-05-20].http://www.paper.edu.cn/releasepaper/content/202605-88.学科分类
氢能、氢能利用
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