Preparation of Sea Cucumber-like Cu2O/Cu@N-C and Electrochemical reduction of CO2 to Produce Formate
The widespread use of fossil fuels has led to a sharp increase in carbon dioxide(CO2)emissions,resulting in serious environmental pollution and global climate problems.The electrochemical reduction of CO2 into high value-added chemicals and fuels can achieve genuine carbon recycling.The design and preparation of a high-activity CO2RR catalyst have significant scientific and industrial value for improving the conversion effi-ciency and high selectivity of target products.A sea cucumber-like Cu2O/Cu-supported N-C nano-catalyst(Cu2O/Cu@N-C)was prepared in one step by the solvothermal method for the electrochemical conversion of CO2 into formate.The surface morphology and electronic structure of the Cu2O/Cu@N-C catalyst can be opti-mized by controlling the reaction time.The Cu2O/Cu@N-C catalyst synthesized at 48 hours is most favorable for formate formation.At-0.98 V(vs.RHE),the Faraday efficiency of formate can reach 89.26％,with a cur-rent density of 12.59 mA/cm2.Due to its special sea cucumber-like morphology,Cu2O/Cu@N-C can provide more active sites during the reaction process,enhancing the adsorption and activation of CO2 and thus improving the catalyst's selectivity for the product.
electrochemical reduction of CO2nano-catalystmorphological effectformate
万方数据
