Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 67, Pages 10229-10232Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc03717h
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Copper is a unique electrocatalyst for CO2 reduction, since it is one of the few catalysts able to produce methane, ethylene and ethane from CO2 with decent faradaic efficiencies. Here we report on the design and synthesis of a new non-copper-containing catalyst able to reduce CO2 to C-1 to C-5 hydrocarbons. This catalyst was designed by combining a metal that binds CO strongly, Pd, with a metal that binds CO weakly, Au, in an attempt to tune the binding energy of CO. We show that a mixture of C-1-C-5 hydrocarbons and soluble products are produced from an onset potential of -0.8 V-RHE. We propose that the higher hydrocarbons are formed via a polymerization of -CH2 groups adsorbed on the catalyst surface.
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