Single-crystalline tungsten oxide nanoplates

Deliang Chen, Hailong Wang, Rui Zhang, Lian Gao, Yoshiyuki Sugahara, Atsuo Yasumori

    Research output: Contribution to journalArticle

    14 Citations (Scopus)

    Abstract

    Tungsten oxide nanocrystals are important semiconductor materials with a suitable energy band gap (ca. 2.5 eV) for visible-light utilization. Though there are a great amount of reports on the synthesis of WO3 nanocrystals, no effective routes to two-dimensional (2D) WO3 nanocrystals have been reported. We here developed a novel and efficient route to synthesize free-standing single-crystalline WOs nanoplates on a large scale and in a repeatable way. The proposed route involved a rational transformation of tungstate-based inorganic-organic hybrid nanobelts to single-crystalline WO3-H2O nanoplates, and then to single-crystalline monoclinic WO3 nanoplates with an inhibited crystal growth direction of [004]. The sizes of the as-obtained WO3 nanoplates are (200-500) nm × (200-500) nm × (10-30) nm. The WO 3 nanoplates as-synthesized have high specific surface areas (up to 180 m2 g-1) and showed remarkably enhanced visible-light photocatalytic properties in water splitting for O2 generation.

    Original languageEnglish
    Pages (from-to)596-600
    Number of pages5
    JournalJournal of Ceramic Processing Research
    Volume9
    Issue number6
    Publication statusPublished - 2008

    Fingerprint

    Nanocrystals
    Tungsten
    Crystalline materials
    Oxides
    Nanobelts
    Crystallization
    Crystal growth
    Specific surface area
    Band structure
    Energy gap
    Semiconductor materials
    Water
    tungsten oxide
    Direction compound
    tungstate

    Keywords

    • Inorganic-organic hybrids
    • Layered compounds
    • Tungstate nanoplates
    • Tungsten oxide nanoplates
    • Two-dimensional nanostructures

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

    Chen, D., Wang, H., Zhang, R., Gao, L., Sugahara, Y., & Yasumori, A. (2008). Single-crystalline tungsten oxide nanoplates. Journal of Ceramic Processing Research, 9(6), 596-600.

    Single-crystalline tungsten oxide nanoplates. / Chen, Deliang; Wang, Hailong; Zhang, Rui; Gao, Lian; Sugahara, Yoshiyuki; Yasumori, Atsuo.

    In: Journal of Ceramic Processing Research, Vol. 9, No. 6, 2008, p. 596-600.

    Research output: Contribution to journalArticle

    Chen, D, Wang, H, Zhang, R, Gao, L, Sugahara, Y & Yasumori, A 2008, 'Single-crystalline tungsten oxide nanoplates', Journal of Ceramic Processing Research, vol. 9, no. 6, pp. 596-600.
    Chen D, Wang H, Zhang R, Gao L, Sugahara Y, Yasumori A. Single-crystalline tungsten oxide nanoplates. Journal of Ceramic Processing Research. 2008;9(6):596-600.
    Chen, Deliang ; Wang, Hailong ; Zhang, Rui ; Gao, Lian ; Sugahara, Yoshiyuki ; Yasumori, Atsuo. / Single-crystalline tungsten oxide nanoplates. In: Journal of Ceramic Processing Research. 2008 ; Vol. 9, No. 6. pp. 596-600.
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