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; Gongming Wang

doi:10.1038/s41467-024-45873-0

Nature Communications (Feb 2024)

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,
Gongming Wang

Affiliations

Yanyan Fang: Department of Chemistry, University of Science and Technology of China
Cong Wei: Department of Chemistry, University of Science and Technology of China
Zenan Bian: Department of Chemistry, University of Science and Technology of China
Xuanwei Yin: Department of Chemistry, University of Science and Technology of China
Bo Liu: Department of Chemistry, University of Science and Technology of China
Zhaohui Liu: Department of Chemistry, University of Science and Technology of China
Peng Chi: Department of Chemistry, University of Science and Technology of China
Junxin Xiao: Department of Chemistry, University of Science and Technology of China
Wanjie Song: Department of Chemistry, University of Science and Technology of China
Shuwen Niu: Department of Chemistry, University of Science and Technology of China
Chongyang Tang: Department of Chemistry, University of Science and Technology of China
Jun Liu: Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences
Xiaolin Ge: Department of Chemistry, University of Science and Technology of China
Tongwen Xu: Department of Chemistry, University of Science and Technology of China
Gongming Wang: Department of Chemistry, University of Science and Technology of China

DOI: https://doi.org/10.1038/s41467-024-45873-0
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 11

Abstract

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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.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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