Fabrication and characterization of Pt nanoparticles dispersed in Nb2O5 composite films by liquid phase deposition

被引:18
作者
Ko, HYY
Mizuhata, M
Kajinami, A
Deki, S [1 ]
机构
[1] Kobe Univ, Fac Engn, Dept Sci & Chem Engn, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Grad Sch Sci & Technol, Div Mol Sci, Kobe, Hyogo 6578501, Japan
关键词
D O I
10.1039/b110589b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Pt nanoparticle-doped Nb2O5 composite films (similar to80 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 degreesC 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 degreesC. All deposited films were X-ray amorphous up to 500 degreesC of heat treatment, above which a crystalline structure appeared. The crystallized composite film corresponded to the hexagonal structure of TT-Nb2O5.
引用
收藏
页码:1495 / 1499
页数:5
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共 18 条
  • [11] SENSORS FOR MONITORING ENVIRONMENTAL-POLLUTION
    MEIXNER, H
    GERBLINGER, J
    FLEISCHER, M
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1993, 15 (1-3) : 45 - 54
  • [12] A NEW PROCESS FOR SILICA COATING
    NAGAYAMA, H
    HONDA, H
    KAWAHARA, H
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (08) : 2013 - 2016
  • [13] THERMAL-STABILITY OF PT FILMS ON TIO2(110) - EVIDENCE FOR ENCAPSULATION
    PESTY, F
    STEINRUCK, HP
    MADEY, TE
    [J]. SURFACE SCIENCE, 1995, 339 (1-2) : 83 - 95
  • [14] CHARACTERIZATION OF OXIDIZED PLATINUM SURFACES BY X-RAY PHOTOELECTRON-SPECTROSCOPY
    PEUCKERT, M
    BONZEL, HP
    [J]. SURFACE SCIENCE, 1984, 145 (01) : 239 - 259
  • [15] STRUCTURAL AND MORPHOLOGICAL CHARACTERIZATION OF NB2O5 THIN-FILMS DEPOSITED BY REACTIVE SPUTTERING
    ROSENFELD, D
    SANJINES, R
    LEVY, F
    BUFFAT, PA
    DEMARNE, V
    GRISEL, A
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1994, 12 (01): : 135 - 139
  • [16] Mechanism in Nb doped titania oxygen gas sensor
    Sharma, RK
    Bhatnagar, MC
    Sharma, GL
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1998, 46 (03) : 194 - 201
  • [17] Ultrasonic irradiation as activity and selectivity improving factor in the hydrogenation of cinnamaldehyde over Pt/SiO2 catalysts
    Szollosi, G
    Torok, B
    Szakonyi, G
    Kun, I
    Bartok, M
    [J]. APPLIED CATALYSIS A-GENERAL, 1998, 172 (02) : 225 - 232
  • [18] STUDY OF THE MORPHOLOGY AND STRUCTURE OF NIOBIA SILICA SURFACE OXIDES USING MODEL THIN-FILMS
    WEISSMAN, JG
    KO, EI
    WYNBLATT, P
    [J]. JOURNAL OF CATALYSIS, 1987, 108 (02) : 383 - 400