Synthesis of TS-1 with preferably distributed Ti in depth direction of crystals

Kosuke Takaishi, Tetsuo Yamamoto, Masahiko Matsukata

    Research output: Contribution to journalArticle

    Abstract

    MFI-type titanosilicate, TS-1, was synthesized by using silicalite-1 as the silica source. When the synthesis gel was highly alkaline, dissolution of silicalite-1 drastically occurred in the initial stage of synthesis and Ti species were then uniformly incorporated in the whole body of TS-1 crystals produced. On the other hand, we found that when the gel had a lower alkalinity, dissolution in the initial stage was suppressed and recrystallization occurred on the surface of parent silicalite- 1, resulting in the Ti species being dominantly distributed in the vicinity of the external surface of the remaining core. 1-Hexene oxidation was performed over TS-1. TS-1 in which Ti species were distributed near the external surface showed better catalytic performance in terms of H2 O2 efficiency.

    Original languageEnglish
    Pages (from-to)532-534
    Number of pages3
    JournalChemistry Letters
    Volume45
    Issue number5
    DOIs
    Publication statusPublished - 2016

    Fingerprint

    Crystals
    Dissolution
    Gels
    Alkalinity
    Silicon Dioxide
    Crystallization
    Oxidation
    Direction compound
    titanium silicide
    1-hexene

    Keywords

    • 1-Hexene oxidation
    • Silicalite-1
    • Titanosilicate TS-1

    ASJC Scopus subject areas

    • Chemistry(all)

    Cite this

    Synthesis of TS-1 with preferably distributed Ti in depth direction of crystals. / Takaishi, Kosuke; Yamamoto, Tetsuo; Matsukata, Masahiko.

    In: Chemistry Letters, Vol. 45, No. 5, 2016, p. 532-534.

    Research output: Contribution to journalArticle

    Takaishi, Kosuke ; Yamamoto, Tetsuo ; Matsukata, Masahiko. / Synthesis of TS-1 with preferably distributed Ti in depth direction of crystals. In: Chemistry Letters. 2016 ; Vol. 45, No. 5. pp. 532-534.
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