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), Vol. 138:9; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
Similar Records
The optical properties of lithium tungsten bronze single crystals and thin films for electrochromic window device applications
Uncovering phase transformation, morphological evolution, and nanoscale color heterogeneity in tungsten oxide electrochromic materials
Related Subjects
08 HYDROGEN
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ELECTRIC POWER
ENERGY CONSUMPTION
THIN FILMS
COBALT ADDITIONS
NICKEL ADDITIONS
TUNGSTEN OXIDES
WINDOWS
ELECTROCHROMISM
BRONZE
DESIGN
DOPED MATERIALS
ELECTRIC IMPEDANCE
ELECTROCHEMISTRY
HYDROGEN EMBRITTLEMENT
MATERIALS TESTING
OXIDATION
SPECTRAL RESPONSE
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
COBALT ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
ELECTRO-OPTICAL EFFECTS
EMBRITTLEMENT
FILMS
IMPEDANCE
MATERIALS
NICKEL ALLOYS
OPENINGS
OXIDES
OXYGEN COMPOUNDS
POWER
REFRACTORY METAL COMPOUNDS
TESTING
TIN ALLOYS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
080800 - Hydrogen- Properties & Composition
360205 - Ceramics
Cermets
& Refractories- Corrosion & Erosion
400400 - Electrochemistry