Selective Deposition of Cobalt and Copper Oxides on BiVO 4 Facets for Enhancement of CO 2 Photocatalytic Reduction to Hydrocarbons - Archive ouverte HAL
Article Dans Une Revue ChemCatChem Année : 2019

Selective Deposition of Cobalt and Copper Oxides on BiVO 4 Facets for Enhancement of CO 2 Photocatalytic Reduction to Hydrocarbons

Résumé

The nanostructure of a semiconductor is a crucial parameter for efficient photocatalytic performance. Hereby, we have synthesized monoclinic bismuth vanadate (BiVO4) crystals with controlled ratio of {010} and {110} facets. The selective deposition of CuOx and CoOx over {010} and {110} facets has been performed using photo-reduction and photo-oxidation methods, respectively. It resulted in a highly efficient charge separation of photogenerated electrons and holes and enhancement of the photocatalytic reduction of CO2 by H2O into hydrocarbons, including CH4, C2H6 and C3H8. The controlled co-catalyst deposition over different semiconductor facets provides a strategy for the synthesis of hydrocarbons from CO2 and H2O by efficient charge separation.

Domaines

Matériaux Catalyse
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Dates et versions

hal-03052421 , version 1 (11-12-2020)

Identifiants

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Xiang Yu, Vitaly Ordomsky, Andrei Khodakov. Selective Deposition of Cobalt and Copper Oxides on BiVO 4 Facets for Enhancement of CO 2 Photocatalytic Reduction to Hydrocarbons. ChemCatChem, 2019, 12 (3), pp.740-749. ⟨10.1002/cctc.201901115⟩. ⟨hal-03052421⟩
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