Formation of Gels and Gel-Glasses in the VO2(V2O5)-SiO2 Systems

被引：5
|
作者：
Samuneva, B. [1 ]
Dimitrov, V. [1 ]
Dimitriev, Y. [1 ]
Chernev, V. [1 ]
Gochev, G. [2 ]
机构：
[1] Higher Inst Chem Technol, BU-1756 Sofia, Bulgaria
[2] Kliment Ohridski Univ, Sofia, Bulgaria
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1994年 / 2卷 / 1-3期
关键词：
coloured gels; vanadium oxides; silica glass; structure; redox-oxidation;
D O I：
10.1007/BF00486375
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Blue-coloured gels have been prepared in the VO2-SiO2 system up to 80 mol% VO2 by sol-gel technology using TEOS and aqueous solutions of VOSO4 center dot 5H(2)O. It is established by means of VIS and ESR spectra that at low temperatures VO2+ complexes are formed. An oxidation of V4+ has taken place with increasing temperature, and V2O5 and cristobalite have been separated. Silica gel glasses stable up to 800 degrees C have been obtained from gels containing 1-3 mol% VO2.
引用
收藏
页码：913 / 915
页数：3
相关论文
共 50 条
  • [1] Valence reduction process from sol-gel V2O5 to VO2 thin films
    Yuan, NY
    Li, JH
    Lin, CL
    APPLIED SURFACE SCIENCE, 2002, 191 (1-4) : 176 - 180
  • [2] OPTICAL-PROPERTIES OF THE VANADIUM-OXIDES VO2 AND V2O5
    PARKER, JC
    GEISER, UW
    LAM, DJ
    XU, YN
    WAI, YC
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (11) : 3206 - 3208
  • [3] Electrochemically Triggered Metal-Insulator Transition between VO2 and V2O5
    Lu, Qiyang
    Bishop, Sean R.
    Lee, Dongkyu
    Lee, Shinbuhm
    Bluhm, Hendrik
    Tuller, Harry L.
    Lee, Ho Nyung
    Yildiz, Bilge
    ADVANCED FUNCTIONAL MATERIALS, 2018, 28 (34)
  • [4] Reduction of V2O5 thin films deposited by aqueous sol-gel method to VO2(B) and investigation of its photocatalytic activity
    Monfort, Olivier
    Roch, Tomas
    Satrapinskyy, Leonid
    Gregor, Maros
    Plecenik, Tomas
    Plecenik, Andrej
    Plesch, Gustav
    APPLIED SURFACE SCIENCE, 2014, 322 : 21 - 27
  • [5] Synthesis and functional properties of vanadium oxides:: V2O3, VO2, and V2O5 deposited on glass by aerosol-assisted CVD
    Piccirillo, Clara
    Binions, Russell
    Parkin, Ivan P.
    CHEMICAL VAPOR DEPOSITION, 2007, 13 (04) : 145 - 151
  • [6] Molecular dynamics simulation of deformation in SiO2 and Na2O-SiO2 glasses
    Takada, Akira
    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2008, 116 (1356) : 880 - 884
  • [7] IR spectra of VO2 and V2O3
    Botto, IL
    Vassallo, MB
    Baran, EJ
    Minelli, G
    MATERIALS CHEMISTRY AND PHYSICS, 1997, 50 (03) : 267 - 270
  • [8] In Situ Characterization on Thermal Transitions of VO2(B): Toward VO2(R) and V2O3
    Zhang Shaohong
    Fu Juan
    Su Qiucheng
    Wu Liangpeng
    Li Xinjun
    RARE METAL MATERIALS AND ENGINEERING, 2016, 45 (06) : 1374 - 1380
  • [9] Phase Formation in the V2O5–AlN System
    A. V. Larionov
    R. I. Gulyaeva
    E. A. Nifontova
    Inorganic Materials, 2023, 59 (1) : 59 - 68
  • [10] Selective Synthesis of 3D Aligned VO2 and V2O5 Carbon Nanotube Hybrid Materials by Chemical Vapor Deposition
    Doenges, Inga
    Yadav, Sandeep
    Trouillet, Vanessa
    Schneider, Jorg J.
    CHEMISTRY-A EUROPEAN JOURNAL, 2024, 30 (64)
12345