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Preparation and Characterization of Nanocomposite Composed of TiO2 as Active Matrix

Published online by Cambridge University Press:  10 February 2011

T. Sasaki ,
R. Rozbicki ,
Y. Matsumoto ,
N. Koshizaki ,
S. Terauchi  and
H. Umehara
T. Sasaki
Affiliation:
National Institute of Materials and Chemical Research (NIMC), Agency of Industrial Science and Technology, MITI, 1–1 Higashi, Tsukuba, Ibaraki 305, Japan.
R. Rozbicki
Affiliation:
College of Engineering, Boston University, MA 02215
Y. Matsumoto
Affiliation:
Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kumamoto University, 2–39–1 Kurokami, Kumamoto 860, Japan.
N. Koshizaki
Affiliation:
National Institute of Materials and Chemical Research (NIMC), Agency of Industrial Science and Technology, MITI, 1–1 Higashi, Tsukuba, Ibaraki 305, Japan.
S. Terauchi
Affiliation:
National Institute of Materials and Chemical Research (NIMC), Agency of Industrial Science and Technology, MITI, 1–1 Higashi, Tsukuba, Ibaraki 305, Japan.
H. Umehara
Affiliation:
National Institute of Materials and Chemical Research (NIMC), Agency of Industrial Science and Technology, MITI, 1–1 Higashi, Tsukuba, Ibaraki 305, Japan.
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Abstract

Pt/TiO2 nanocomposite films were deposited on quartz glass and ITO glass substrates by the co-sputtering method. As-deposited composite films were amorphous and content of Pt in the films could be easily controlled by the amount Pt wire placed on the TiO2 target. Pt/Ti atomic ratio in the nanocomposite increased as the length of Pt wire on the TiO2 target increased. It was determined by XPS that the chemical states of Pt in as-deposited nanocomposites were Pt metal, Pt-O-Ti and PtO2, which were dependent on the Pt/Ti atomic ratio in the nanocomposite. The size of Pt nanoparticles in the composite films increased as the temperature of heat-treatment and Pt/Ti atomic ratio in the composite films increased. Pt nanoparticles in the nanocomposite films inhibited grain growth of TiO2 during heat-treatment.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 457: Symposium V – Nanophase and Nanocomposite Materials II , 1996 , 425
Copyright
Copyright © Materials Research Society 1997

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References

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