PHOTOINDUCED TRANSFORMATIONS IN PYROCHLORE AND TRIRUTILE PHASES OF HTAWO6

被引：6
|
作者：
CAZZANELLI, E [1 ]
MARIOTTO, G [1 ]
CATTI, M [1 ]
MARI, CM [1 ]
机构：
[1] UNIV MILAN, DIPARTIMENTO CHIM FIS & ELETTROCHIM, I-20133 MILAN, ITALY
来源：
SOLID STATE IONICS | 1992年 / 53卷
关键词：
D O I：
10.1016/0167-2738(92)90404-D
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：
The transformations of the two known solid phases of HTaWO6, pyrochlore and trirutile, under visible light laser irradiation have been investigated using Raman spectroscopy. Pyrochlore specimens show a transition to a trirutile phase after strong irradiation in air. The same effect is also obtained by heating up to 700-degrees-C. A more moderate irradiation of pyrochlore samples in a oxygen-free environment produces a different transformation to a phase similar to Ta2O5. The trirutile phase always decomposes even under weak light exposure, into two compounds: WO3 and another material also similar to Ta2O5.
引用
收藏
页码：383 / 390
页数：8
相关论文
共 43 条
  • [1] Nanotubes Formed by Exfoliation of HTaWO6
    Li, Jinpeng
    Pan, Binbin
    Xu, Jiasheng
    Wang, Mengjun
    Zhang, Xiaobo
    Liu, Lin
    Ma, Juanjuan
    Tong, Zhiwei
    CHEMISTRY LETTERS, 2017, 46 (04) : 597 - 598
  • [2] PROTON MOTION IN THE DEFECT PYROCHLORES HTAWO6 AND HTAWO6 H2O
    BIEFELD, RM
    BUTLER, MA
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (APR): : 154 - 154
  • [3] ELECTRICAL-CONDUCTIVITY OF HTAWO6.H2O AND HTAWO6
    MARI, CM
    BONINO, F
    CATTI, M
    PASINETTI, R
    PIZZINI, S
    SOLID STATE IONICS, 1986, 18-9 : 1013 - 1019
  • [4] ISOTOPE EFFECT AND TUNNELING PROTON CONDUCTION IN HTAWO6
    BIEFELD, RM
    BUTLER, MA
    AZEVEDO, LJ
    SOLID STATE COMMUNICATIONS, 1981, 38 (12) : 1125 - 1128
  • [5] Synthesis and photocatalytic properties of HTaWO6/(Pt,TiO2) and HTaWO6/(Pt,Fe2O3) nanocomposites
    Wu, JH
    Uchida, S
    Fujishiro, Y
    Yin, S
    Sato, T
    INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 1999, 1 (3-4): : 253 - 258
  • [6] ISOTOPE EFFECT FOR PROTON CONDUCTION IN THE DEFECT PYROCHLORES HTAWO6 AND HTAWO6H2O
    BIEFELD, RM
    BUTLER, MA
    AZEVEDO, LJ
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1980, 180 (AUG): : 152 - INOR
  • [7] Synthesis and photocatalytic properties of HTaWO6 intercalated with oxide materials
    Wang, LL
    Wu, JH
    Li, TH
    Cheng, YH
    Huang, ML
    Lin, JM
    JOURNAL OF POROUS MATERIALS, 2005, 12 (01) : 23 - 27
  • [8] Synthesis and Photocatalytic Properties of HTaWO6 Intercalated with Oxide Materials
    Lingling Wang
    Jihuai Wu
    Taohai Li
    Yinghan Cheng
    Miaoliang Huang
    Jianming Lin
    Journal of Porous Materials, 2005, 12 : 23 - 27
  • [9] NMR-STUDY OF PROTON MOTION IN THE DEFECT PYROCHLORES HTAWO6 AND HTAWO6.H2O
    BUTLER, MA
    BIEFELD, RM
    PHYSICAL REVIEW B, 1979, 19 (11): : 5455 - 5462
  • [10] TRIRUTILE PHASES OF HTAWO6-CENTER-DOT-XH2O - VIBRATIONAL PROPERTIES AND ELECTRICAL-CONDUCTIVITY
    CATTI, M
    CAZZANELLI, E
    MARI, CM
    MARIOTTO, G
    JOURNAL OF SOLID STATE CHEMISTRY, 1993, 107 (01) : 108 - 116
12345