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  • Vapor-Phase Hydrothermal Transformation of HTiOF3 Intermediates into {001} Faceted Anatase Single-Crystalline Nanosheets

    Author(s)
    Liu, Porun
    Wang, Yun
    Zhang, Haimin
    An, Taicheng
    Yang, Huagui
    Tang, Zhiyong
    Cai, Weiping
    Zhao, Huijun
    Griffith University Author(s)
    Zhao, Huijun
    Liu, Porun
    Wang, Yun
    Year published
    2012
    Metadata
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    Abstract
    For the first time, a facile, one-pot hydrofluoric acid vapor-phase hydrothermal (HF-VPH) method is demonstrated to directly grow single-crystalline anatase TiO2 nanosheets with 98.2% of exposed {001} faceted surfaces on the Ti substrate via a distinctive two-stage formation mechanism. The first stage produces a new intermediate crystal (orthorhombic HTiOF3) that is transformed into anatase TiO2 nanosheets during the second stage. The findings reveal that the HF-VPH reaction environment is unique and differs remarkably from that of liquid-phase hydrothermal processes. The uniqueness of the HF-VPH conditions can be readily ...
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    For the first time, a facile, one-pot hydrofluoric acid vapor-phase hydrothermal (HF-VPH) method is demonstrated to directly grow single-crystalline anatase TiO2 nanosheets with 98.2% of exposed {001} faceted surfaces on the Ti substrate via a distinctive two-stage formation mechanism. The first stage produces a new intermediate crystal (orthorhombic HTiOF3) that is transformed into anatase TiO2 nanosheets during the second stage. The findings reveal that the HF-VPH reaction environment is unique and differs remarkably from that of liquid-phase hydrothermal processes. The uniqueness of the HF-VPH conditions can be readily used to effectively control the nanostructure growth.
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    Journal Title
    Small
    Volume
    8
    Issue
    23
    DOI
    https://doi.org/10.1002/smll.201200971
    Subject
    Theoretical and computational chemistry not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/49944
    Collection
    • Journal articles

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