Bi2O3 as a Promoter for Cu/TiO2 Photocatalysts for the Selective Conversion of Carbon Dioxide into Methane

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A significantly enhanced gas-phase photocatalytic conversion of carbon dioxide into methane on Cu/TiO2 nanoparticles upon introducing Bi2O3 as a promoter in the vicinity of Cu was observed. The maximum rate of CH4 generation of 11.90 mmol g(-1) h(-1) recorded in the case of Cu-Bi2O3/TiO2 is approximately one order of magnitude higher than that obtained with Cu/TiO2 nanoparticles. The enhanced performance was attributed to facilitated migration of CO* from Cu to the Bi2O3 surface.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2016-05
Language
English
Article Type
Article
Keywords

ELECTROCHEMICAL REDUCTION; CO2 REDUCTION; SURFACE-CHEMISTRY; METAL-SURFACES; CATALYSTS; COPPER; CHALLENGES; DIFFUSION; CU; HYDROGENATION

Citation

CHEMCATCHEM, v.8, no.9, pp.1641 - 1645

ISSN
1867-3880
DOI
10.1002/cctc.201600099
URI
http://hdl.handle.net/10203/212496
Appears in Collection
CBE-Journal Papers(저널논문)
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