Hierarchical structures of rutile exposing high-index facets

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

Research output: Contribution to journalArticlepeer-review

13 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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