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Tuning the activities of cuprous oxide nanostructures via the oxide-metal interaction

Author

Listed:
  • Wugen Huang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Qingfei Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Chongqing University)

  • Zhiwen Zhou

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yangsheng Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yunjian Ling

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yong Wang

    (Xiamen University)

  • Yunchuan Tu

    (Chinese Academy of Sciences)

  • Beibei Wang

    (ShanghaiTech University)

  • Xiaohong Zhou

    (ShanghaiTech University)

  • Dehui Deng

    (Chinese Academy of Sciences)

  • Bo Yang

    (ShanghaiTech University)

  • Yong Yang

    (ShanghaiTech University)

  • Zhi Liu

    (ShanghaiTech University
    Chinese Academy of Sciences)

  • Xinhe Bao

    (Chinese Academy of Sciences)

  • Fan Yang

    (Chinese Academy of Sciences
    ShanghaiTech University)

Abstract

Despite tremendous importance in catalysis, the design of oxide-metal interface has been hampered by the limited understanding of the nature of interfacial sites and the oxide-metal interaction (OMI). Through construction of well-defined Cu2O/Pt, Cu2O/Ag and Cu2O/Au interfaces, we find that Cu2O nanostructures (NSs) on Pt exhibit much lower thermal stability than on Ag and Au, although they show the same structure. The activities of these interfaces are compared for CO oxidation and follow the order of Cu2O/Pt > Cu2O/Au > Cu2O/Ag. OMI is found to determine the activity and stability of supported Cu2O NSs, which could be described by the formation energy of interfacial oxygen vacancy. Further, electronic interaction between Cu+ and metal substrates is found center to OMI, where the d band center could be used as a key descriptor. Our study provides insight for OMI and for the development of Cu-based catalysts for low temperature oxidation reactions.

Suggested Citation

  • Wugen Huang & Qingfei Liu & Zhiwen Zhou & Yangsheng Li & Yunjian Ling & Yong Wang & Yunchuan Tu & Beibei Wang & Xiaohong Zhou & Dehui Deng & Bo Yang & Yong Yang & Zhi Liu & Xinhe Bao & Fan Yang, 2020. "Tuning the activities of cuprous oxide nanostructures via the oxide-metal interaction," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15965-8
    DOI: 10.1038/s41467-020-15965-8
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    Cited by:

    1. Kunlong Liu & Lizhi Jiang & Wugen Huang & Guozhen Zhu & Yue-Jiao Zhang & Chaofa Xu & Ruixuan Qin & Pengxin Liu & Chengyi Hu & Jingjuan Wang & Jian-Feng Li & Fan Yang & Gang Fu & Nanfeng Zheng, 2022. "Atomic overlayer of permeable microporous cuprous oxide on palladium promotes hydrogenation catalysis," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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