Investigation of factors influencing the formation of Tungstate-based inorganic-organic hybrid nanobelts/nanotubes

Deliang Chen, Yoshiyuki Sugahara

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Tungstate-based inorganic-organic hybrid nanobelts/nanotubes were synthesized in a system of H2W2O7· xH2O/n-octylamine/heptane (n-octylamine:H2W 2O7·xH2O molar ratio: 30), and the effects of the volume ratios of heptane to K-octylamine and the amounts of interlayer water in H2W2O7·xH 2O on the formation behavior of the hybrids were investigated. The belt/tubelike hybrids obtained were 10-20 μm in length and 200-500 nm in apparent diameter. Large volume ratios of heptane to n-octylamine not only enhanced the degree of the long-range order of the lamellar structures in the hybrids, but they also improved the morphologic uniformity of the hybrids. The existence of interlayer water in H2W2O7· xH2O was indispensable to the formation of tungstate-based inorganic-organic hybrid nanobelts/nanotubes. The amounts of interlayer water in H2W2O7·xH2O varied over a wide range (x, from 0.85 to 4.1), had a neglectable effect on the morphology of the tungstate-based nanophase hybrids, but exerted a remarkable influence on the rate of the reaction of H2W2O7·xH 2O with n-octylamine in the heptane solvent. The larger the amount of interlayer water, the more rapid the reaction rate.

    Original languageEnglish
    Pages (from-to)85-88
    Number of pages4
    JournalKey Engineering Materials
    Volume352
    DOIs
    Publication statusPublished - 2007

    Fingerprint

    Nanobelts
    Heptane
    Nanotubes
    Heptanes
    Water
    Lamellar structures
    Reaction rates
    octylamine
    tungstate

    Keywords

    • Inorganic-organic hybrid
    • Intercalation
    • Layered compound
    • Nanostructure
    • Tungstic acid

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemical Engineering (miscellaneous)

    Cite this

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    abstract = "Tungstate-based inorganic-organic hybrid nanobelts/nanotubes were synthesized in a system of H2W2O7· xH2O/n-octylamine/heptane (n-octylamine:H2W 2O7·xH2O molar ratio: 30), and the effects of the volume ratios of heptane to K-octylamine and the amounts of interlayer water in H2W2O7·xH 2O on the formation behavior of the hybrids were investigated. The belt/tubelike hybrids obtained were 10-20 μm in length and 200-500 nm in apparent diameter. Large volume ratios of heptane to n-octylamine not only enhanced the degree of the long-range order of the lamellar structures in the hybrids, but they also improved the morphologic uniformity of the hybrids. The existence of interlayer water in H2W2O7· xH2O was indispensable to the formation of tungstate-based inorganic-organic hybrid nanobelts/nanotubes. The amounts of interlayer water in H2W2O7·xH2O varied over a wide range (x, from 0.85 to 4.1), had a neglectable effect on the morphology of the tungstate-based nanophase hybrids, but exerted a remarkable influence on the rate of the reaction of H2W2O7·xH 2O with n-octylamine in the heptane solvent. The larger the amount of interlayer water, the more rapid the reaction rate.",
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    author = "Deliang Chen and Yoshiyuki Sugahara",
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    AU - Sugahara, Yoshiyuki

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