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Distinguishing faceted oxide nanocrystals with 17O solid-state NMR spectroscopy

Author

Listed:
  • Yuhong Li

    (Nanjing University
    Changshu Institute of Technology)

  • Xin-Ping Wu

    (East China University of Science and Technology)

  • Ningxin Jiang

    (Nanjing University)

  • Ming Lin

    (Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research))

  • Li Shen

    (Nanjing University)

  • Haicheng Sun

    (Nanjing University)

  • Yongzheng Wang

    (Nanjing University)

  • Meng Wang

    (Nanjing University)

  • Xiaokang Ke

    (Nanjing University)

  • Zhiwu Yu

    (High Magnetic Field Laboratory of the Chinese Academy of Sciences)

  • Fei Gao

    (Nanjing University
    Nanjing University)

  • Lin Dong

    (Nanjing University
    Nanjing University)

  • Xuefeng Guo

    (Nanjing University)

  • Wenhua Hou

    (Nanjing University)

  • Weiping Ding

    (Nanjing University)

  • Xue-Qing Gong

    (East China University of Science and Technology)

  • Clare P. Grey

    (University of Cambridge
    Stony Brook University)

  • Luming Peng

    (Nanjing University)

Abstract

Facet engineering of oxide nanocrystals represents a powerful method for generating diverse properties for practical and innovative applications. Therefore, it is crucial to determine the nature of the exposed facets of oxides in order to develop the facet/morphology–property relationships and rationally design nanostructures with desired properties. Despite the extensive applications of electron microscopy for visualizing the facet structure of nanocrystals, the volumes sampled by such techniques are very small and may not be representative of the whole sample. Here, we develop a convenient 17O nuclear magnetic resonance (NMR) strategy to distinguish oxide nanocrystals exposing different facets. In combination with density functional theory calculations, we show that the oxygen ions on the exposed (001) and (101) facets of anatase titania nanocrystals have distinct 17O NMR shifts, which are sensitive to surface reconstruction and the nature of the steps on the surface. The results presented here open up methods for characterizing faceted nanocrystalline oxides and related materials.

Suggested Citation

  • Yuhong Li & Xin-Ping Wu & Ningxin Jiang & Ming Lin & Li Shen & Haicheng Sun & Yongzheng Wang & Meng Wang & Xiaokang Ke & Zhiwu Yu & Fei Gao & Lin Dong & Xuefeng Guo & Wenhua Hou & Weiping Ding & Xue-Q, 2017. "Distinguishing faceted oxide nanocrystals with 17O solid-state NMR spectroscopy," Nature Communications, Nature, vol. 8(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00603-7
    DOI: 10.1038/s41467-017-00603-7
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    Cited by:

    1. Jia-Huan Du & Lu Chen & Bing Zhang & Kuizhi Chen & Meng Wang & Yang Wang & Ivan Hung & Zhehong Gan & Xin-Ping Wu & Xue-Qing Gong & Luming Peng, 2022. "Identification of CO2 adsorption sites on MgO nanosheets by solid-state nuclear magnetic resonance spectroscopy," Nature Communications, Nature, vol. 13(1), pages 1-6, December.

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