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Electrochromic properties of oxidized tungsten in sulfuric acid solutions

Journal Article · · Sov. Electrochem. (Engl. Transl.); (United States)
OSTI ID:5389703
The parameters of the electrochromic process taking place on electrochemically oxidized tungsten electrodes were studied by recording current-voltage curves, making coulometric determinations, and investigating electrooptic effects in the oxide film. The electrochromic effect was studied in sulfuric acid solutions of different concentrations. The shape of the cathodic current-voltage curves is shown. The amounts of charge consumed and the contrast ratios as functions of cathodic potential of the tungsten electrode during coloration are presented. Also shown is the anodic and cathodic current as functions of time during bleaching of oxidized tungsten, plotted in different coordinates. High mobility of the protons in tungsten oxide produced by electrochemical oxidation of tungsten, relative to sputtered oxide, is shown to procure faster response of the electrochromic system.
Research Organization:
M. I. Kalinin Polytechnic Institute, Leningrad (USSR)
OSTI ID:
5389703
Journal Information:
Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 23:2; ISSN SOECA
Country of Publication:
United States
Language:
English