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Oriented Molecular Attachments Through Sol–Gel Chemistry for Synthesis of Ultrathin Hydrated Vanadium Pentoxide Nanosheets and Their Applications

Authors

  • Xianhong Rui,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    2. School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Ziyang Lu,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Zongyou Yin,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Dao Hao Sim,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
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  • Ni Xiao,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
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  • Tuti Mariana Lim,

    1. School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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  • Huey Hoon Hng,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
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  • Hua Zhang,

    Corresponding author
    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    • School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081.
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  • Qingyu Yan

    Corresponding author
    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    2. Energy Research Institute, Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore 637459, Singapore
    • School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081.
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Abstract

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Ultrathin single-crystalline V2O5·0.76H2O nanosheets with a thickness of 1.5–2.6 nm are prepared on the basis of molecular-level ‘oriented attachment’ through special sol–gel chemistry. The initial formation of 3–7 nm nanodiscs by confining the condensation reactions within the ab plane is critical to form nanosheets. As a proof-of-concept, these nanosheets exhibit good properties for hydrogen sensors and supercapacitors.

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