Hierarchical structures of rutile exposing high-index facets

Quang Duc Truong, Hideki Kato, Makoto Kobayashi, Masato Kakihana

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)


    Recently, shape-controlled synthesis of crystals exposing high-index facets has attracted much research interest due to their importance for both fundamental studies and technological applications. Herein, crystals of rutile-type TiO2 with hierarchical structures exposing high-index facets have been synthesized by a facile hydrothermal method using water-soluble titanium complex as a precursor and picolinic acid as structure-directing and shape-controlling agents. The synthesized particles were composed of several branches of pyramidal crystals with relatively smooth surface. On the basis of investigation results, it was speculated that the mutual π-stacking and selective adsorption of picolinic acid on specific {111} facets resulted in the formation of rutile crystals bound by high-index surfaces such as {331}.

    Original languageEnglish
    Pages (from-to)86-91
    Number of pages6
    JournalJournal of Crystal Growth
    Publication statusPublished - 2015 May 15


    • A1. Interfaces
    • A1. Nanostructure
    • A1. Surface structure
    • A2. Hydrothermal crystal growth
    • B1. Oxides

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Inorganic Chemistry
    • Materials Chemistry


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