Cu- and Zn-MOF74 were synthesized using the nitrate salts of Cu and Zn combined with 2,5-dihydroxyterephtalic acid (H₄DOBBDC) by a simple solvothermal method. The as-prepared Cu- and Zn-MOF74 were used as electrocatalysts for the electrochemical reduction CO₂ using a H-type cell in a 0.1 M of KHCO₃ aqueous solution. The Cu-MOF74 exhibited a larger surface area, higher CO selectivity, smaller Tafel slope, and lower overpotential than those of Zn-MOF74. A computational simulation showed that the lower activation energy of Cu-MOF74 than that of Zn-MOF74 in the rate-determining step resulted in better electrocatalytic properties.

铜和锌的硝酸盐与2,5-二羟基对苯二甲酸（H ₄ DOBBDC）结合，通过简单的溶剂热法合成了铜和锌的MOF74。所制备的Cu-和Zn-MOF74用作H型电池在0.1M KHCO ₃水溶液中的电化学还原CO ₂的电催化剂。与Zn-MOF74相比，Cu-MOF74具有更大的表面积，更高的CO选择性，更小的塔菲尔斜率和更低的超电势。计算仿真表明，在速率确定步骤中，Cu-MOF74的活化能比Zn-MOF74的活化能低，从而产生了更好的电催化性能。