RAMAN MICROPROBE STUDY OF NANOPHASE TIO2 AND OXIDATION-INDUCED SPECTRAL CHANGES

被引：346

作者：

PARKER, JC

SIEGEL, RW

机构：

[1] Materials Science Division, Argonne National Laboratory, Argonne

来源：

JOURNAL OF MATERIALS RESEARCH | 1990年 / 5卷 / 06期

基金：

美国能源部;

关键词：

D O I：

10.1557/JMR.1990.1246

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Raman microprobe study of as-compacted nanophase TiO2 was carried out to investigate the spatial inhomogeneity of its anatase and rutile phases. Also, changes in the observed Raman spectra (line shifts and broadening) were investigated as a function of annealing at temperatures up to 600 °C in argon or air. Microscopic phase inhomogeneity is observed and Raman spectral changes are shown to result from inhomogeneous oxygen deficiency in the nanophase TiO2. The line positions corresponding to the Raman active Eg modes in both anatase and rutile are found to be sensitive to this oxygen deficiency and are potential quantitative indicators of such deviations from stoichiometry. © 1990, Materials Research Society. All rights reserved.

引用

页码：1246 / 1252

页数：7

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