Research progress in copper-based catalysts for electrocatalytic reduction of carbon dioxide
With the growing problem of global climate change,the electrocatalytic carbon dioxide reduction process(ECO2RR)has attracted much attention as a method to convert CO2 into high value-added fuels and chemicals.Cu,as a catalyst for ECO2RR,could efficiently catalyze the electroreduction of CO2 to produce a variety of C2+products.However,copper catalysts suffer from poor selectivity and poor stability in ECO2RR.In order to improve the performance of copper catalysts,the catalysts have been modified through strategies including heteroatom modification,defect construction,and modulation of size,morphology,crystal surface,and composition.In this work,the application of Cu-based catalysts in the ECO2RR is reviewed,and the design strategies for Cu-based catalyst including size and morphology modulation,as well as compositional regulation(e.g.,Cu oxide,bimetallic Cu-based catalysts,and nonmetallic doping)are described in detail,and the modulation patterns of these strategies on the structure and performance of Cu-based electrocatalysts are analyzed.
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