Ternary CuO/ZnO/Al₂O₃ catalyst was synthesized through coprecipitation method and the effect of indium addition on the textural and catalytic performance was evaluated. The catalysts were tested at 50 atm and 250 °C in H₂/CO/CO₂, H₂/CO and H₂/CO₂ feed. The presence of In₂O₃ resulted in structural promotions including enhanced BET and copper surface area, smaller copper crystals and increased oxygen vacancies. On the contrary, unexpected results were observed in catalytic activities in H₂/CO/CO₂ and H₂/CO₂ feeds. Pure In₂O₃ revealed the ability of direct hydrogenation of CO₂ to methanol. In addition, it was observed that the addition of palladium into the catalyst remarkably enhanced the CO₂ hydrogenation to methanol.

通过共沉淀法合成了三元CuO / ZnO / Al ₂ O ₃催化剂，并评价了铟添加对质构和催化性能的影响。在H ₂ / CO / CO ₂，H ₂ / CO和H ₂ / CO ₂进料中在50 atm和250°C下测试催化剂。In ₂ O ₃的存在导致结构促进，包括增加的BET和铜表面积，较小的铜晶体和增加的氧空位。相反，在H ₂ / CO / CO ₂和H ₂ / CO ₂中的催化活性观察到出乎意料的结果。饲料。Pure In ₂ O ₃显示了将CO ₂直接氢化为甲醇的能力。另外，观察到向催化剂中添加钯显着增强了CO ₂加氢为甲醇。