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Restructuring highly electron-deficient metal-metal oxides for boosting stability in acidic oxygen evolution reaction

Author

Listed:
  • Xinghui Liu

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU))

  • Shibo Xi

    (Institute of Chemical and Engineering Sciences, A*STAR)

  • Hyunwoo Kim

    (Sungkyunkwan University (SKKU))

  • Ashwani Kumar

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU))

  • Jinsun Lee

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU))

  • Jian Wang

    (Seoul National University)

  • Ngoc Quang Tran

    (Institute of Basic Science (IBS))

  • Taehun Yang

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU))

  • Xiaodong Shao

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU))

  • Mengfang Liang

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU))

  • Min Gyu Kim

    (Pohang University of Science and Technology)

  • Hyoyoung Lee

    (Institute of Basic Science (IBS)
    Sungkyunkwan University (SKKU)
    Sungkyunkwan University (SKKU))

Abstract

The poor catalyst stability in acidic oxidation evolution reaction (OER) has been a long-time issue. Herein, we introduce electron-deficient metal on semiconducting metal oxides-consisting of Ir (Rh, Au, Ru)-MoO3 embedded by graphitic carbon layers (IMO) using an electrospinning method. We systematically investigate IMO’s structure, electron transfer behaviors, and OER catalytic performance by combining experimental and theoretical studies. Remarkably, IMO with an electron-deficient metal surface (Irx+; x > 4) exhibit a low overpotential of only ~156 mV at 10 mA cm−2 and excellent durability in acidic media due to the high oxidation state of metal on MoO3. Furthermore, the proton dissociation pathway is suggested via surface oxygen serving as proton acceptors. This study suggests high stability with high catalytic performance in these materials by creating electron-deficient surfaces and provides a general, unique strategy for guiding the design of other metal-semiconductor nanocatalysts.

Suggested Citation

  • Xinghui Liu & Shibo Xi & Hyunwoo Kim & Ashwani Kumar & Jinsun Lee & Jian Wang & Ngoc Quang Tran & Taehun Yang & Xiaodong Shao & Mengfang Liang & Min Gyu Kim & Hyoyoung Lee, 2021. "Restructuring highly electron-deficient metal-metal oxides for boosting stability in acidic oxygen evolution reaction," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26025-0
    DOI: 10.1038/s41467-021-26025-0
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    Cited by:

    1. Ashwani Kumar & Viet Q. Bui & Jinsun Lee & Lingling Wang & Amol R. Jadhav & Xinghui Liu & Xiaodong Shao & Yang Liu & Jianmin Yu & Yosep Hwang & Huong T. D. Bui & Sara Ajmal & Min Gyu Kim & Seong-Gon K, 2021. "Moving beyond bimetallic-alloy to single-atom dimer atomic-interface for all-pH hydrogen evolution," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    2. 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.
    3. Sheng Zhao & Sung-Fu Hung & Liming Deng & Wen-Jing Zeng & Tian Xiao & Shaoxiong Li & Chun-Han Kuo & Han-Yi Chen & Feng Hu & Shengjie Peng, 2024. "Constructing regulable supports via non-stoichiometric engineering to stabilize ruthenium nanoparticles for enhanced pH-universal water splitting," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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