TY - JOUR
T1 - Hierarchical structures of rutile exposing high-index facets
AU - Truong, Quang Duc
AU - Kato, Hideki
AU - Kobayashi, Makoto
AU - Kakihana, Masato
N1 - Funding Information:
This work was partially supported by Grant-in-Aid for Scientific Research on Innovative Areas of “Fusion materials: Creative Development of Materials and Exploration of Their Function through Molecular Control” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (No. 2206 ). The authors thank Dr. T. Miyazaki (Tohoku University) for his help in the TEM and SAED measurements and analysis. Q. D. Truong would like to thank MEXT for awarding Monbusho Scholarship (No. 093037 ).
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/5/15
Y1 - 2015/5/15
N2 - 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}.
AB - 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}.
KW - A1. Interfaces
KW - A1. Nanostructure
KW - A1. Surface structure
KW - A2. Hydrothermal crystal growth
KW - B1. Oxides
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U2 - 10.1016/j.jcrysgro.2015.02.056
DO - 10.1016/j.jcrysgro.2015.02.056
M3 - Article
AN - SCOPUS:84924062528
SN - 0022-0248
VL - 418
SP - 86
EP - 91
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
ER -