Characterization of the photochromic and electrochromic titania gel

被引：7
|
作者：
Guan, ZS [1 ]
Ma, Y [1 ]
Cao, YA [1 ]
Ji, XH [1 ]
Yao, JN [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2000年 / 16卷 / 01期
关键词：
titania gel; photochromism; electrochromism; ESR;
D O I：
10.3866/PKU.WHXB20000102
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：
Titania gel is very sensitive to change of color to blue-purple by UV irradiation and to brown color under extra electric field polarization. The UV absorption spectra of the photochromic (PC) and electrochromic(EC) titania gel are different to that of the nanocrystalline TiO2 which changes to blue color by UV irradiation or under extra electric field polarization, The steady-state ESR measurements at room temperature indicate that ESR signals of Ti3+ appeared in PC and EC titania gel with the g values corresponding to 1.9505 and 1.9512, respectively.
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页码：5 / 8
页数：4
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