Li HuangJingWei, Lin Yu, Duan Junyuan, Wen Qunlei, Liu Youwen, Zhai Tianyou
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China.
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, Hubei, 430205, P. R. China.
Chem Soc Rev. 2024 Oct 28;53(21):10709-10740. doi: 10.1039/d3cs00010a.
Hydrogen energy, derived from the electrolysis of water using renewable energy sources such as solar, wind, and hydroelectric power, is considered a promising form of energy to address the energy crisis. However, the anodic oxygen evolution reaction (OER) poses limitations due to sluggish kinetics. Apart from high catalytic activity, the long-term stability of electrocatalytic OER has garnered significant attention. To date, several research studies have been conducted to explore stable electrocatalysts for the OER. A comprehensive review is urgently warranted to provide a concise overview of the recent advancements in the electrocatalytic OER stability, encompassing both electrocatalyst and device developments. This review aims to succinctly summarize the primary factors influencing OER stability, including morphological/phase change and electrocatalyst dissolution, as well as mechanical detachment, alongside chemical, mechanical, and operational degradation observed in devices. Furthermore, an overview of contemporary approaches to enhance stability is provided, encompassing electrocatalyst design (structural regulation, protective layer coating, and stable substrate anchoring) and device optimization (bipolar plates, gas diffusion layers, and membranes). Hopefully, more attention will be paid to ensuring the stable operation of electrocatalytic OER and the future large-scale water electrolysis applications. This review presents design principles aimed at addressing challenges related to the stability of electrocatalytic OER.
利用太阳能、风能和水力发电等可再生能源通过水电解产生的氢能，被认为是解决能源危机的一种有前景的能源形式。然而，阳极析氧反应（OER）由于动力学缓慢而存在局限性。除了高催化活性外，电催化OER的长期稳定性也受到了广泛关注。迄今为止，已经开展了多项研究来探索用于OER的稳定电催化剂。迫切需要进行全面综述，以简要概述电催化OER稳定性的最新进展，包括电催化剂和器件的发展。本综述旨在简要总结影响OER稳定性的主要因素，包括形态/相变和电催化剂溶解，以及机械剥离，以及在器件中观察到的化学、机械和操作降解。此外，还概述了提高稳定性的当代方法，包括电催化剂设计（结构调控、保护层涂层和稳定基底锚固）和器件优化（双极板、气体扩散层和膜）。希望能更加关注确保电催化OER的稳定运行以及未来大规模水电解应用。本综述提出了旨在应对与电催化OER稳定性相关挑战的设计原则。
