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Author Pan, B. H. ♦ Lee, J. Y.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ MOLYBDOPHOSPHORIC ACID ♦ ELECTROCHROMISM ♦ TUNGSTEN OXIDES ♦ COMPOSITE MATERIALS ♦ ELECTRODEPOSITION ♦ THIN FILMS
Abstract The electrochromism of phosphomolybdic acid (PM) in solution and in a series of solid WO{sub 3}-PM composites is investigated. PM in solution changes color from light yellow to dark blue upon reduction whereas the composites show a change from light yellow to bluish brown under identical conditions. PM could not be deposited as a thin film by itself, and electrochemical codeposition was used to incorporate it into the WO{sub 3} matrix. The basic electrochromatic properties of WO{sub 3} are changed upon the incorporation of PM even in small quantities. The composites have a more intense color, a different cold spectrum, and a slower electrochromic response speed than that of WO{sub 3}. The composites, like WO{sub 3}, are also degraded by slow and continuous potential cycling.
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-09-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 143
Issue Number 9


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