Unveiling the nature of Pt-induced anti-deactivation of Ru for alkaline hydrogen oxidation reaction

• DOI: 10.1038/s41467-024-45873-0
• Publication Date: 2024-02-22T06:02:11Z
• Authors: Yanyan Fang; Cong Wei; Zenan Bian; Xuanwei Yin; Bo Liu; Zhaohui Liu; Peng Chi; Junxin Xiao; Wanjie Song; Shuwen Niu; Chongyang Tang; Jun Liu; Xiaolin Ge; Tongwen Xu; Gongming Wang
• Keywords: Passivation

Abstract While Ru owns superior catalytic activity toward hydrogen oxidation reaction and cost advantages, the catalyst deactivation under high anodic potential range severely limits its to replace Pt benchmark catalyst. Unveiling mechanism of correspondingly developing protection strategies remain a great challenge. Herein, we develop atomic Pt-functioned nanoparticles with excellent anti-deactivation feature meanwhile employ advanced operando characterization tools probe underlying roles in anti-deactivation. Our studies reveal introduced single atoms effectively prevent from oxidative passivation consequently preserve interfacial water network for critical H* release during catalysis. Clearly understanding nature Pt-induced levels could provide valuable insights rationally designing stable Ru-based catalysts beyond.