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

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 and Gongming Wang ()
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Yanyan Fang: University of Science and Technology of China
Cong Wei: University of Science and Technology of China
Zenan Bian: University of Science and Technology of China
Xuanwei Yin: University of Science and Technology of China
Bo Liu: University of Science and Technology of China
Zhaohui Liu: University of Science and Technology of China
Peng Chi: University of Science and Technology of China
Junxin Xiao: University of Science and Technology of China
Wanjie Song: University of Science and Technology of China
Shuwen Niu: University of Science and Technology of China
Chongyang Tang: University of Science and Technology of China
Jun Liu: Chinese Academy of Sciences
Xiaolin Ge: University of Science and Technology of China
Tongwen Xu: University of Science and Technology of China
Gongming Wang: University of Science and Technology of China

Nature Communications, 2024, vol. 15, issue 1, 1-11

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

Date: 2024
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DOI: 10.1038/s41467-024-45873-0

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