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Taming interfacial electronic properties of platinum nanoparticles on vacancy-abundant boron nitride nanosheets for enhanced catalysis

Author

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  • Wenshuai Zhu

    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University
    Oak Ridge National Laboratory)

  • Zili Wu

    (Oak Ridge National Laboratory)

  • Guo Shiou Foo

    (Oak Ridge National Laboratory)

  • Xiang Gao

    (Oak Ridge National Laboratory)

  • Mingxia Zhou

    (Kansas State University)

  • Bin Liu

    (Kansas State University)

  • Gabriel M. Veith

    (Oak Ridge National Laboratory)

  • Peiwen Wu

    (School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University
    Oak Ridge National Laboratory)

  • Katie L. Browning

    (Oak Ridge National Laboratory)

  • Ho Nyung Lee

    (Oak Ridge National Laboratory)

  • Huaming Li

    (Institute for Energy Research, Jiangsu University)

  • Sheng Dai

    (Oak Ridge National Laboratory)

  • Huiyuan Zhu

    (Oak Ridge National Laboratory)

Abstract

Taming interfacial electronic effects on Pt nanoparticles modulated by their concomitants has emerged as an intriguing approach to optimize Pt catalytic performance. Here, we report Pt nanoparticles assembled on vacancy-abundant hexagonal boron nitride nanosheets and their use as a model catalyst to embrace an interfacial electronic effect on Pt induced by the nanosheets with N-vacancies and B-vacancies for superior CO oxidation catalysis. Experimental results indicate that strong interaction exists between Pt and the vacancies. Bader charge analysis shows that with Pt on B-vacancies, the nanosheets serve as a Lewis acid to accept electrons from Pt, and on the contrary, when Pt sits on N-vacancies, the nanosheets act as a Lewis base for donating electrons to Pt. The overall-electronic effect demonstrates an electron-rich feature of Pt after assembling on hexagonal boron nitride nanosheets. Such an interfacial electronic effect makes Pt favour the adsorption of O2, alleviating CO poisoning and promoting the catalysis.

Suggested Citation

  • Wenshuai Zhu & Zili Wu & Guo Shiou Foo & Xiang Gao & Mingxia Zhou & Bin Liu & Gabriel M. Veith & Peiwen Wu & Katie L. Browning & Ho Nyung Lee & Huaming Li & Sheng Dai & Huiyuan Zhu, 2017. "Taming interfacial electronic properties of platinum nanoparticles on vacancy-abundant boron nitride nanosheets for enhanced catalysis," Nature Communications, Nature, vol. 8(1), pages 1-7, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15291
    DOI: 10.1038/ncomms15291
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    Cited by:

    1. Wenyao Chen & Junbo Cao & Jia Yang & Yueqiang Cao & Hao Zhang & Zheng Jiang & Jing Zhang & Gang Qian & Xinggui Zhou & De Chen & Weikang Yuan & Xuezhi Duan, 2021. "Molecular-level insights into the electronic effects in platinum-catalyzed carbon monoxide oxidation," Nature Communications, Nature, vol. 12(1), pages 1-11, December.

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