IMPROVEMENTS IN THE LIFE OF WO3 ELECTROCHROMIC FILMS

被引:16
作者
SHEN, P [1 ]
HUANG, H [1 ]
TSEUNG, ACC [1 ]
机构
[1] UNIV ESSEX,DEPT CHEM & BIOL CHEM,CHEM ENERGY RES CTR,WIVENHOE PK,COLCHESTER CO4 3SQ,ESSEX,ENGLAND
关键词
TUNGSTEN OXIDE; ELECTROCHROMISM; COATING; NAFION; THIN FILM;
D O I
10.1039/jm9920200497
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 life of Nafion-coated WO3 electrochromic films in 0.5 mol dm (H2SO4)-H--3 was studied by cyclic voltammetry and in situ UV spectrophotometry and compared with uncoated films. The presence of Nafion film at the electrode surface restricted the diffusion of tungsten ions to the bulk electrolyte, thereby significantly prolonging the life of the electrodes. This technique should find useful applications to other catalytic electrodes in aqueous media.
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页码:497 / 499
页数:3
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