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Abstract：
Visible-light-driven CO conversion has attracted many research efforts. Herein we study the reaction mechanism from the perspective of electron transfer behavior during CO adsorption (CO (ad)). The WO3 and CuWO4/WO3 films were in-situ synthesized, and then were investigated their behaviors for adsorbing CO and catalyzing CO conversion under visible light via gas sensing system and in-situ DRIFTS testing, respectively. It was found that the CO (ad) at W5+-W5+ site will form bridge adsorbed CO species over WO3, and donate electrons to W5+, resulting in its light-driven oxidation by O-2. The CO (ad) at W-0 site forms linear and gem-dicarbonyl adsorbed CO species over CuWO4/WO3, and accept electrons from W-0, then its reduction by H-2. The result shows the light-driven CO oxidation or reduction on WO3 and CuWO4/WO3 would be somewhat dependent on the electron transfer behavior induced by different modes of CO chemisorption and the Fermi level of sample itself.
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APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN： 0926-3373
Year： 2020
Volume： 265
1 9 . 5 0 3
JCR@2020
2 0 . 3 0 0
JCR@2023
ESI Discipline： CHEMISTRY;
ESI HC Threshold：160
JCR Journal Grade：1
CAS Journal Grade：1
Cited Count：
WoS CC Cited Count： 28
SCOPUS Cited Count： 34
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 2
Affiliated Colleges：
