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Unique structure of active platinum-bismuth site for oxidation of carbon monoxide

Author

Listed:
  • Bing Nan

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

  • Qiang Fu

    (Shandong University)

  • Jing Yu

    (Shanghai Institute of Measurement and Testing Technology)

  • Miao Shu

    (Chinese Academy of Sciences)

  • Lu-Lu Zhou

    (Shandong University)

  • Jinying Li

    (Shandong University)

  • Wei-Wei Wang

    (Shandong University)

  • Chun-Jiang Jia

    (Shandong University)

  • Chao Ma

    (Hunan University)

  • Jun-Xiang Chen

    (TILON Group Technology Limited)

  • Lina Li

    (Chinese Academy of Sciences
    Zhangjiang Laboratory, Shanghai Advanced Research Institute)

  • Rui Si

    (Chinese Academy of Sciences
    Zhangjiang Laboratory, Shanghai Advanced Research Institute)

Abstract

As the technology development, the future advanced combustion engines must be designed to perform at a low temperature. Thus, it is a great challenge to synthesize high active and stable catalysts to resolve exhaust below 100 °C. Here, we report that bismuth as a dopant is added to form platinum-bismuth cluster on silica for CO oxidation. The highly reducible oxygen species provided by surface metal-oxide (M-O) interface could be activated by CO at low temperature (~50 °C) with a high CO2 production rate of 487 μmolCO2·gPt−1·s−1 at 110 °C. Experiment data combined with density functional calculation (DFT) results demonstrate that Pt cluster with surface Pt−O−Bi structure is the active site for CO oxidation via providing moderate CO adsorption and activating CO molecules with electron transformation between platinum atom and carbon monoxide. These findings provide a unique and general approach towards design of potential excellent performance catalysts for redox reaction.

Suggested Citation

  • Bing Nan & Qiang Fu & Jing Yu & Miao Shu & Lu-Lu Zhou & Jinying Li & Wei-Wei Wang & Chun-Jiang Jia & Chao Ma & Jun-Xiang Chen & Lina Li & Rui Si, 2021. "Unique structure of active platinum-bismuth site for oxidation of carbon monoxide," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23696-7
    DOI: 10.1038/s41467-021-23696-7
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    Cited by:

    1. Yunan Li & Lingling Guo & Meng Du & Chen Tian & Gui Zhao & Zhengwu Liu & Zhenye Liang & Kunming Hou & Junxiang Chen & Xi Liu & Luozhen Jiang & Bing Nan & Lina Li, 2024. "Unraveling distinct effects between CuOx and PtCu alloy sites in Pt−Cu bimetallic catalysts for CO oxidation at different temperatures," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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