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Quadruple perovskite ruthenate as a highly efficient catalyst for acidic water oxidation

Author

Listed:
  • Xianbing Miao

    (University of Science and Technology of China)

  • Lifu Zhang

    (Nankai University)

  • Liang Wu

    (University of Science and Technology of China)

  • Zhenpeng Hu

    (Nankai University)

  • Lei Shi

    (University of Science and Technology of China)

  • Shiming Zhou

    (University of Science and Technology of China)

Abstract

Development of highly active and durable oxygen-evolving catalysts in acid media is a major challenge to design proton exchange membrane water electrolysis for producing hydrogen. Here, we report a quadruple perovskite oxide CaCu3Ru4O12 as a superior catalyst for acidic water oxidation. This complex oxide exhibits an ultrasmall overpotential of 171 mV at 10 mA cm−2geo, which is much lower than that of the state-of-the-art RuO2. Moreover, compared to RuO2, CaCu3Ru4O12 shows a significant increase in mass activity by more than two orders of magnitude and much better stability. Density functional theory calculations reveal that the quadruple perovskite catalyst has a lower Ru 4d-band center relative to RuO2, which effectively optimizes the binding energy of oxygen intermediates and thereby enhances the catalytic activity.

Suggested Citation

  • Xianbing Miao & Lifu Zhang & Liang Wu & Zhenpeng Hu & Lei Shi & Shiming Zhou, 2019. "Quadruple perovskite ruthenate as a highly efficient catalyst for acidic water oxidation," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11789-3
    DOI: 10.1038/s41467-019-11789-3
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    Cited by:

    1. Yu Du & Fakang Xie & Mengfei Lu & Rongxian Lv & Wangxi Liu & Yuandong Yan & Shicheng Yan & Zhigang Zou, 2024. "Continuous strain tuning of oxygen evolution catalysts with anisotropic thermal expansion," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Che Lah, Nurul Akmal, 2021. "Late transition metal nanocomplexes: Applications for renewable energy conversion and storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 145(C).
    3. Zhaoping Shi & Ji Li & Yibo Wang & Shiwei Liu & Jianbing Zhu & Jiahao Yang & Xian Wang & Jing Ni & Zheng Jiang & Lijuan Zhang & Ying Wang & Changpeng Liu & Wei Xing & Junjie Ge, 2023. "Customized reaction route for ruthenium oxide towards stabilized water oxidation in high-performance PEM electrolyzers," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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