Journal
ELECTROCATALYSIS
Volume 3, Issue 2, Pages 139-146Publisher
SPRINGER
DOI: 10.1007/s12678-012-0095-0
Keywords
Carbon dioxide; Copper-gold alloys; Copper single crystals; Carbon monoxide production; Methane production
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Funding
- Fonds National de la Recherche Scientifique (F.R.S.-FNRS)
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The activity of copper single-crystal and copper-gold alloyed (Au1Cu99, Au10Cu90, Au20Cu80, Au50Cu50) electrodes for CO2 electroreduction has been investigated in aqueous phosphate buffer solutions by cyclic voltammetry and potentiostatic long-term electrolysis. In addition to H-2, four species were identified in the gaseous phase by chromatography after electrolyses: CO, CH4, C2H4 and traces of C2H6. At copper electrodes, the major carbon-containing products are CO and CH4. Analysis of the data indicates that the fraction of methane increases in the order Cu (poly)
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