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Article Abstract
The conversion efficiency and product selectivity of the electroreduction of carbon dioxide have been largely limited by the low CO solubility in aqueous solution. To relieve this problem, Cu(BTC) (Cu-MOF) as CO capture agent was introduced into a carbon paper based gas diffusion electrode (GDE) in this study. The faradaic efficiencies (FEs) of CH on GDE with Cu-MOF weight ratio in the range of 7.5-10% are 2-3-fold higher than that of GDE without Cu-MOF addition under negative potentials (-2.3 to -2.5 V vs SCE), and the FE of the competitive hydrogen evolution reaction (HER) is reduced to 30%. This work paves the way to develop GDE with high catalytic activity for ERC.
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