A Single-Crystalline Mesoporous Quartz Superlattice

Takamichi Matsuno, Yoshiyuki Kuroda, Masaki Kitahara, Atsushi Shimojima, Hiroaki Wada, Kazuyuki Kuroda

    研究成果: Article

    6 引用 (Scopus)

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    There has been significant interest in the crystallization of nanostructured silica into α-quartz because of its physicochemical properties. We demonstrate a single-crystalline mesoporous quartz superlattice, a silica polymorph with unprecedentedly ordered hierarchical structures on both the several tens of nanometers scale and the atomic one. The mesoporous quartz superlattice consists of periodically arranged α-quartz nanospheres whose crystalline axes are mostly oriented in an assembly. The superlattice is prepared by thermal crystallization of amorphous silica nanospheres constituting a colloidal crystal. We found that the deposition of a strong flux of Li+ only on the surface of silica nanospheres is effective for crystallization. Order a double: A single-crystalline mesoporous quartz superlattice with periodic order on both the several tens of nanometer scale and the atomic scale is prepared by crystallization of amorphous silica nanospheres which constitute a colloidal crystal. The periodic arrangement of silica nanospheres is retained even though Li+ ions are used as a strong flux.

    元の言語English
    ページ(範囲)6008-6012
    ページ数5
    ジャーナルAngewandte Chemie - International Edition
    55
    発行部数20
    DOI
    出版物ステータスPublished - 2016 5 10

    ASJC Scopus subject areas

    • Chemistry(all)
    • Catalysis

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