Document Detail

Thermally Stable N(2)-intercalated WO(3) Photoanodes for Water Oxidation.
MedLine Citation:
PMID:  23020149     Owner:  NLM     Status:  Publisher    
We describe stable intercalation compounds of the composition xN(2)∙WO(3) (x = 0.034-0.039), formed by trapping N(2) in WO(3). The incorporation of N(2) significantly reduced the absorption threshold of WO(3); notably, 0.039N(2)∙WO(3) anodes exhibited photocurrent under illumination at wavelengths ≤640 nm with a faradaic efficiency for O(2) evolution in 1.0 M HClO4(aq) of nearly unity. Spectroscopic and computational results indicated that deformation of the WO(3) host lattice, as well as weak electronic interactions between trapped N(2) and the WO(3) matrix, contributed to the observed red shift in optical absorption. Noble-gas-intercalated WO(3) materials similar to xN(2)∙WO(3) are predicted to function as photoanodes that are responsive to visible light.
Qixi Mi; Yuan Ping; Yan Li; Bingfei Cao; Bruce S Brunschwig; Peter G Khalifah; Giulia A Galli; Harry B Gray; Nathan S Lewis
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-28
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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