The performance of electrochromic tungsten trioxide films doped with cobalt or nickel
- Chemical Energy Research Centre, Dept. of Chemistry and Biological Chemistry, Univ. of Essex, Wivenhoe Park, Colchester CO4 3SQ, Essex (GB)
Tungsten trioxide is being developed as a electrochromic material for smart windows. However, the relatively high electrical resistivity and overpotential for hydrogen evolution and oxidation affect their response time and electrical power consumption. Previous work on Pt/WO{sub 3} indicated that admixing of Pt onto WO{sub 3} significantly reduced the overpotential for hydrogen oxidation and evolution reactions since the formation of hydrogen tungsten bronze results in the spill-over of the hydrogen reaction to the tungsten bronze surface. This paper reports work on the preparation of code-posited Ni/WO{sub 3} and Co/WO{sub 3} films which give significantly faster response times and consumes less power than traditional WO{sub 3} films.
- OSTI ID:
- 5266509
- Journal Information:
- Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 138:9; ISSN JESOA; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALLOYS
BRONZE
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
COBALT ADDITIONS
COBALT ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
DESIGN
DOPED MATERIALS
ELECTRIC IMPEDANCE
ELECTRIC POWER
ELECTRO-OPTICAL EFFECTS
ELECTROCHEMISTRY
ELECTROCHROMISM
EMBRITTLEMENT
ENERGY CONSUMPTION
FILMS
HYDROGEN EMBRITTLEMENT
IMPEDANCE
MATERIALS
MATERIALS TESTING
NICKEL ADDITIONS
NICKEL ALLOYS
OPENINGS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POWER
REFRACTORY METAL COMPOUNDS
SPECTRAL RESPONSE
TESTING
THIN FILMS
TIN ALLOYS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES
WINDOWS