Microstructure study of amorphous vanadium oxide films

被引:8
作者
Schreckenbach, JP [1 ]
Strauch, P
机构
[1] Tech Univ Chemnitz, Dept Chem, D-09107 Chemnitz, Germany
[2] Univ Leipzig, Inst Inorgan Chem, D-04103 Leipzig, Germany
关键词
anodic films; vanadium oxide; X-ray photoelectron spectroscopy (XPS); electron spin resonance (ESR);
D O I
10.1016/S0169-4332(99)00084-7
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
Conversion films of vanadium oxides are potentiodynamically generated on vanadium in acetate electrolyte systems at high voltages. The microstructure of the about 5 mu m thin anodic films is investigated. X-ray diffraction and transmission electron microscopy indicate the films are complete amorphous. X-ray photoelectron spectroscopy (XPS) measurements show V 2p(3/2) binding energies of mixed valance vanadium sub oxides. Electron spin resonance (ESR) experiments on isolated films at 130 K point to paramagnetic V4+ centers in a. disordered octahedral oxygen surrounding. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:6 / 10
页数:5
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