成功合成了2种金属有机框架材料,并探究其在CO₂电催化还原反应中的应用。结果表明,二维ZIF-L催化剂的CO₂电催化还原活性、选择性和稳定性显著高于ZIF-7。在-1.3 V (vs.RHE)时,CO法拉第效率可达78.5%,是相同电势下ZIF-7的近2倍;CO的电流密度为16.8 mA/cm²,高于文献中报道的Zn基MOFs上CO的电流密度值。二维ZIF-L催化剂独特的孔腔结构有利于CO₂的吸附,从而有效催化CO₂电还原。

Two kinds of metal-organic frameworks materials are synthesized,and applied in the electrochemical reduction of CO₂.The results indicate that two-dimensional ZIF-L catalyst exhibits superior activity,selectivity and stability in the electrochemical reduction of CO₂ than ZIF-7 catalyst.At -1.3 V(vs.RHE),CO Faraday efficiency over ZIF-L catalyst can reach 78.5%,which is two times that over ZIF-7.CO current density is 16.8 mA·cm^-2 for ZIF-L,which is higher than the values over other Zn-based MOFs reported in the literature.ZIF-L catalyst has unique cavity,which is conducive to the adsorption to CO₂,thus effectively catalyzing the electroreduction of CO₂.

张蕊(1999-),女,本科生,研究方向为二氧化碳电催化还原,1982977660@qq.com