Color centres and polymorphism in pure WO3 and mixed (1−x)WO3−y·xReO2 powders

被引：0
|
作者：
E. Cazzanelli
G. Mariotto
C. Vinegoni
A. Kuzmin
J. Purans
机构：
[1] Università della Calabria,Istituto Nazionale per la Fisica della Materia and Dipartimento di Fisica
[2] Università di Trento,Istituto Nazionale per la Fisica della Materia and Dipartimento di Fisica
[3] University of Geneva,Dept. of Physics, GAP Optique
[4] Institute of Solid State Physics,undefined
来源：
Ionics | 1999年 / 5卷
关键词：
Tungsten; Milling; Structural Transformation; Mechanical Treatment; Raman Band;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The relationship between structural transformations and colour centres creation is discussed for deeply coloured hydrogen tungsten bronzes and for pure WO3 powders, acquiring less intense colour after mechanical treatments of variable duration. A comparative study on coloration is made also for mixed compounds (1−x)WO3−y·xReO2, where an evidence of a resonance effect for a particular Raman band at 970 cm−1, attributed to the color centres, is observed. Besides, it is found that even moderate milling treatments result in a quite different structural evolution of tungsten trioxide upon cooling.
引用
收藏
页码：335 / 344
页数：9
相关论文
共 50 条
  • [21] In Situ Total X-Ray Scattering Study of WO3 Nanoparticle Formation under Hydrothermal Conditions
    Saha, Dipankar
    Jensen, Kirsten M. O.
    Tyrsted, Christoffer
    Bojesen, Espen D.
    Mamakhel, Aref Hasen
    Dippel, Ann-Christin
    Christensen, Mogens
    Iversen, Bo B.
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (14) : 3667 - 3670
  • [22] Understanding the deactivation behavior of Pt/WO3/Al2O3 catalyst in the glycerol hydrogenolysis reaction
    Lei, Nian
    Miao, Zhili
    Liu, Fei
    Wang, Hua
    Pan, Xiaoli
    Wang, Aiqin
    Zhang, Tao
    CHINESE JOURNAL OF CATALYSIS, 2020, 41 (08) : 1261 - 1267
  • [23] Ring opening of decalin and methylcyclohexane over bifunctional Ir/WO3/Al2O3 catalysts
    Moraes, Rodrigo
    Thomas, Karine
    Thomas, Sebastien
    Van Donk, Sander
    Grasso, Giacomo
    Gilson, Jean-Pierre
    Houalla, Marwan
    JOURNAL OF CATALYSIS, 2013, 299 : 30 - 43
  • [24] Pulsed laser chemical vapor deposition of a mixture of W, WO2, and WO3 from W(CO)6 at atmospheric pressure
    Jeong, Kyunghoon
    Lee, Jiwon
    Byun, Injae
    Seong, Myung-jun
    Park, Jongsoo
    Nam, Ho-seok
    Lee, Jaegab
    THIN SOLID FILMS, 2017, 626 : 145 - 153
  • [25] WO3 thin film prepared by PECVD technique and its gas sensing properties to NO2
    Maosong Tong
    Guorui Dai
    Yuanda Wu
    Xiuli He
    Dingsan Gao
    Journal of Materials Science, 2001, 36 : 2535 - 2538
  • [26] Experimental study on supercritical phenomena of WO3 solubility in NaCl-H2O system
    Gong, QJ
    Cen, K
    Yu, CW
    SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2003, 46 (07): : 664 - 671
  • [27] Synthesis of the nanostructured WO3 via anodization at elevated temperature for H2 sensing applications
    Ou, J. Z.
    Ahmad, M. Z.
    Latham, K.
    Kalantar-zadeh, K.
    Sberveglieri, G.
    Wlodarski, W.
    EUROSENSORS XXV, 2011, 25
  • [28] Experimental study on supercritical phenomena of WO3 solubility in NaCl-H2O system
    龚庆杰
    岑况
    於崇文
    ScienceinChina(SeriesD:EarthSciences), 2003, (07) : 664 - 671
  • [29] Experimental study on supercritical phenomena of WO3 solubility in NaCl-H2O system
    Qingjie Gong
    Kuang Cen
    Chongwen Yu
    Science in China Series D: Earth Sciences, 2003, 46 : 664 - 671
  • [30] PREPARATION OF TEXTURED AND PHOTOACTIVE 2H-WS2 THIN-FILMS BY SULFURIZATION OF WO3
    ENNAOUI, A
    FIECHTER, S
    ELLMER, K
    SCHEER, R
    DIESNER, K
    THIN SOLID FILMS, 1995, 261 (1-2) : 124 - 131
12345