The optimal loading of Cu-Ni was 5 wt.%. The highest DMC yield was only 6.39%, with a MeOH conversion of 12.79% at 20 bar of CO2 . The catalyst can be recycled for 4 cycles. However, derived FeZnK-NC was also reported for CO2 hydrogenation in the production of C2-C4 olefins with high stability . It showed C2+ selectivity of 63 mol.% . The hydrogenation of CO2 using ZIF67-derived materials can be promoted using sodium via impregnation with NaNO3 .