Spectroscopic Characterization of SnO2 Gels

被引：18

作者：

Ribeiro, Sidney J. L. ^{[1
]}

Santilli, Celso V. ^{[1
]}

Pulcinelli, Sandra H. ^{[1
]}

Fortes, Fabio L. ^{[1
]}

De Oliveira, Luiz E. C. ^{[2
]}

机构：

[1] UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil

[2] USP, Inst Quim, BR-01498000 Sao Paulo, SP, Brazil

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1994年 / 2卷 / 1-3期

基金：

巴西圣保罗研究基金会;

关键词：

tin oxide hydrogel; optical spectroscopy; gel drying;

D O I：

10.1007/BF00486253

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：

Excitation and dynamic emission spectra of Eu3+ ions were simultaneously used with FTIR and Raman spectroscopy to study the structural evolution during SnO2 sol -> gel -> xerogel conversion. Results make evident an increase of the surroundings symmetry for the Eu3+ ions dissolved in SnO2 matrix and a decrease of the amount of hydroxo groups (Sn-OH) during drying. These phenomena were associated to the pursuit of the condensation reaction after gelation.

引用

页码：263 / 267

页数：5

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