Fabrication and characterization of Pt nanoparticles dispersed in Nb2O5 composite films by liquid phase deposition
- 2 April 2002
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 12 (5) , 1495-1499
- https://doi.org/10.1039/b110589b
Abstract
Pt nanoparticle-doped Nb2O5 composite films (∼80 nm thickness) have been prepared by the liquid phase deposition method. The deposited films were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR). Heat treatment of the deposited films above 200 °C under airflow produced dispersion of the Pt particles. The mean sizes of the Pt particles varied from 2 to 6 nm after heat treatment at 300–600 °C. All deposited films were X-ray amorphous up to 500 °C of heat treatment, above which a crystalline structure appeared. The crystallized composite film corresponded to the hexagonal structure of TT-Nb2O5.Keywords
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