Selective CO2 reduction on a polycrystalline Ag electrode enhanced by anodization treatment

Selective CO2 reduction on a polycrystalline Ag electrode enhanced by anodization treatment

Electrochemical reduction of CO2 to CO on polycrystalline silver (Ag) was greatly improved by a simple anodization treatment. A CO faradaic efficiency of 92.8% was achieved at an overpotential of 0.50 V in an aqueous electrolyte. This study suggests that the enhanced performance is due to a preferre...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2015-12, Vol.51 (100), p.17704-17707
Hauptverfasser: Zhou, Li Qin, Ling, Chen, Jones, Michael, Jia, Hongfei
Format: Artikel
Sprache:eng
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Zusammenfassung:Electrochemical reduction of CO2 to CO on polycrystalline silver (Ag) was greatly improved by a simple anodization treatment. A CO faradaic efficiency of 92.8% was achieved at an overpotential of 0.50 V in an aqueous electrolyte. This study suggests that the enhanced performance is due to a preferred (220) orientation and a thin silver oxide layer formed by anodization.
ISSN:1364-548X
DOI:10.1039/c5cc06752a