摘要
Proton exchange membrane water electrolysis(PEMWE)is considered one of the most promising pathways for producing green hydrogen(H2).However,the sluggish kinetic of the anodic oxygen evolution reaction(OER)hinders the overall efficiency of PEMWE.In the past few decades,ruthenium(Ru)-based materials have been developed as highly active and cost-effective OER catalysts while faced with significant durability challenges.To this end,addressing the durability issues of Ru catalysts is imperative for their practical employment in PEMWE.In this review,state-of-the-art advances in understanding the degradation mechanisms of Ru catalysts in acidic conditions are comprehensively discussed.Then,materials engineering strategies to mitigate degradation through the rational design of stable Ru-catalysts are highlighted.Finally,some prospects are provided in terms of exploring the long-term stability of Ru-based catalysts.This review is anticipated to foster a better understanding of Ru-based catalysts in acidic OER and work on novel strategies for the design of stable Ru-based materials.
基金
supported by the Natural Science Foundation of Shaanxi Province(grant no.2023-JC-YB-122)
the High-level Innovation and Entrepreneurship Talent Project from Qinchuangyuan of Shaanxi Province(grant no.QCYRCXM-2022-226)
the Joint Fund Project-Enterprise-Shaanxi Coal Joint Fund Project(grant no.2021JLM-38).
