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The synergistic effect of Hf-O-Ru bonds and oxygen vacancies in Ru/HfO2 for enhanced hydrogen evolution

Author

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  • Guangkai Li

    (Qingdao University of Science and Technology)

  • Haeseong Jang

    (Ulsan National Institute of Science and Technology (UNIST))

  • Shangguo Liu

    (Qingdao University of Science and Technology)

  • Zijian Li

    (City University of Hong Kong)

  • Min Gyu Kim

    (Beamline Research Division, Pohang Accelerator Laboratory (PAL))

  • Qing Qin

    (Qingdao University of Science and Technology)

  • Xien Liu

    (Qingdao University of Science and Technology)

  • Jaephil Cho

    (Ulsan National Institute of Science and Technology (UNIST))

Abstract

Ru nanoparticles have been demonstrated to be highly active electrocatalysts for the hydrogen evolution reaction (HER). At present, most of Ru nanoparticles-based HER electrocatalysts with high activity are supported by heteroatom-doped carbon substrates. Few metal oxides with large band gap (more than 5 eV) as the substrates of Ru nanoparticles are employed for the HER. By using large band gap metal oxides substrates, we can distinguish the contribution of Ru nanoparticles from the substrates. Here, a highly efficient Ru/HfO2 composite is developed by tuning numbers of Ru-O-Hf bonds and oxygen vacancies, resulting in a 20-fold enhancement in mass activity over commercial Pt/C in an alkaline medium. Density functional theory (DFT) calculations reveal that strong metal-support interaction via Ru-O-Hf bonds and the oxygen vacancies in the supported Ru samples synergistically lower the energy barrier for water dissociation to improve catalytic activities.

Suggested Citation

  • Guangkai Li & Haeseong Jang & Shangguo Liu & Zijian Li & Min Gyu Kim & Qing Qin & Xien Liu & Jaephil Cho, 2022. "The synergistic effect of Hf-O-Ru bonds and oxygen vacancies in Ru/HfO2 for enhanced hydrogen evolution," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28947-9
    DOI: 10.1038/s41467-022-28947-9
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    Cited by:

    1. Zhongliang Huang & Shengnan Hu & Mingzi Sun & Yong Xu & Shangheng Liu & Renjie Ren & Lin Zhuang & Ting-Shan Chan & Zhiwei Hu & Tianyi Ding & Jing Zhou & Liangbin Liu & Mingmin Wang & Yu-Cheng Huang & , 2024. "Implanting oxophilic metal in PtRu nanowires for hydrogen oxidation catalysis," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Yiming Zhu & Jiaao Wang & Toshinari Koketsu & Matthias Kroschel & Jin-Ming Chen & Su-Yang Hsu & Graeme Henkelman & Zhiwei Hu & Peter Strasser & Jiwei Ma, 2022. "Iridium single atoms incorporated in Co3O4 efficiently catalyze the oxygen evolution in acidic conditions," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    3. Shujuan Liu & Teng Li & Feng Shi & Haiying Ma & Bin Wang & Xingchao Dai & Xinjiang Cui, 2023. "Constructing multiple active sites in iron oxide catalysts for improving carbonylation reactions," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    4. Mengyun Hou & Lirong Zheng & Di Zhao & Xin Tan & Wuyi Feng & Jiantao Fu & Tianxin Wei & Minhua Cao & Jiatao Zhang & Chen Chen, 2024. "Microenvironment reconstitution of highly active Ni single atoms on oxygen-incorporated Mo2C for water splitting," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    5. Rui Yao & Kaian Sun & Kaiyang Zhang & Yun Wu & Yujie Du & Qiang Zhao & Guang Liu & Chen Chen & Yuhan Sun & Jinping Li, 2024. "Stable hydrogen evolution reaction at high current densities via designing the Ni single atoms and Ru nanoparticles linked by carbon bridges," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    6. Yiming Zhu & Malte Klingenhof & Chenlong Gao & Toshinari Koketsu & Gregor Weiser & Yecan Pi & Shangheng Liu & Lijun Sui & Jingrong Hou & Jiayi Li & Haomin Jiang & Limin Xu & Wei-Hsiang Huang & Chih-We, 2024. "Facilitating alkaline hydrogen evolution reaction on the hetero-interfaced Ru/RuO2 through Pt single atoms doping," Nature Communications, Nature, vol. 15(1), pages 1-13, December.

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