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- Title
Facilitating alkaline hydrogen evolution reaction on the hetero-interfaced Ru/RuO<sub>2</sub> through Pt single atoms doping.
- Authors
Zhu, Yiming; Klingenhof, Malte; Gao, Chenlong; Koketsu, Toshinari; Weiser, Gregor; Pi, Yecan; Liu, Shangheng; Sui, Lijun; Hou, Jingrong; Li, Jiayi; Jiang, Haomin; Xu, Limin; Huang, Wei-Hsiang; Pao, Chih-Wen; Yang, Menghao; Hu, Zhiwei; Strasser, Peter; Ma, Jiwei
- Abstract
Exploring an active and cost-effective electrocatalyst alternative to carbon-supported platinum nanoparticles for alkaline hydrogen evolution reaction (HER) have remained elusive to date. Here, we report a catalyst based on platinum single atoms (SAs) doped into the hetero-interfaced Ru/RuO2 support (referred to as Pt-Ru/RuO2), which features a low HER overpotential, an excellent stability and a distinctly enhanced cost-based activity compared to commercial Pt/C and Ru/C in 1 M KOH. Advanced physico-chemical characterizations disclose that the sluggish water dissociation is accelerated by RuO2 while Pt SAs and the metallic Ru facilitate the subsequent H* combination. Theoretical calculations correlate with the experimental findings. Furthermore, Pt-Ru/RuO2 only requires 1.90 V to reach 1 A cm−2 and delivers a high price activity in the anion exchange membrane water electrolyzer, outperforming the benchmark Pt/C. This research offers a feasible guidance for developing the noble metal-based catalysts with high performance and low cost toward practical H2 production. Exploring an active and cost-effective catalyst for alkaline hydrogen evolution reaction remains elusive to date. Here, the authors report the platinum single-atoms doped ruthenium/ruthenium oxides showing distinctly enhanced catalytic performance.
- Subjects
HYDROGEN evolution reactions; RUTHENIUM oxides; PLATINUM; ATOMS; PLATINUM nanoparticles; PLATINUM catalysts; RUTHENIUM; ION-permeable membranes; OXYGEN reduction
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-45654-9