FT-RAMAN SPECTROSCOPIC STUDIES OF THE DEGRADATION OF TITANIUM PEROXY GELS MADE FROM METALLIC TITANIUM AND HYDROGEN-PEROXIDE

被引：36

作者：

TENGVALL, P

VIKINGE, TP

LUNDSTROM, I

LIEDBERG, B

机构：

[1] Linkóping Institute of Technology, Department of Physics and Measurement of Technology

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1993年 / 160卷 / 01期

关键词：

D O I：

10.1006/jcis.1993.1362

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 chemical structures of fresh and aged Ti-peroxy gels, made from metallic titanium and hydrogen peroxide, were analyzed in the aqueous and solid states by FT-Raman spectroscopy. Fresh transparent gels displayed strong Ti-peroxy vibrations. In gels aged for 3 years in the aqueous state the dried precipitate was rutile. Fresh transparent gels were freeze-dried first, and then aged for 3 years in the dry state, however, displayed Ti-peroxide and anatase vibrations. Accelerated degradation and aging of solids of fresh transparent gels by heat treatment at 200°C gave rise to a white precipitate identified as anatase. Additional heat treatment of the white precipitate at 1050°C showed bands characteristic of rutile. The present study shows that rutile is the main degradation product formed in aging aqueous Ti-peroxy gels. © 1993 Academic Press, Inc.

引用

页码：10 / 15

页数：6

共 26 条

[1]

ARKHIPENKO DK, 1984, ZH PRIKL SPEKTROSK, V41, P304

[2] ELECTROCHEMICAL SYNTHESIS AND INSITU RAMAN-SPECTROSCOPY OF THIN-FILMS OF TITANIUM-DIOXIDE [J].