Journal
CATALYSTS
Volume 12, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/catal12030293
Keywords
renewables; CO2 reduction; zero-gap electrochemical cell; synthetic alcohols; CRM-free catalyst
Categories
Funding
- EU H2020 LOTERCO2M project CRM-free Low Temperature Electrochemical Reduction of CO2 [761093]
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This paper investigated the transformation of CO2 into low-carbon alcohols using a coelectrolysis cell. The results showed that the CuO-Ag/KB cathode exhibited high selectivity for ethanol and methanol under specific conditions.
The conversion of carbon dioxide into value-added products is progressively gaining momentum. Several strategies have been used to develop technologies that reduce the net emissions of CO2. The utilisation of CO2 could either contribute to carbon recycling. In this paper, the transformation of CO2 was investigated in a coelectrolysis cell constituted of a solid polymer electrolyte, a carbon-supported CuO-Ag composite cathode and NiFeOx anode. Noncritical raw materials were synthesised according to the oxalate method and investigated in an alkaline environment. Low-carbon alcohols were obtained with a specific selectivity for ethanol and methanol over the CuO-Ag/KB cathode. The reaction rates at 1.6 V and 1.8 V cell voltages have been determined in steady-state experiments using NaHCO3 supporting electrolyte recirculated at the anode.
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