A novel and efficient way for conversion of CO₂ and H₂O into ethanol over a commercial Cu/ZnO/Al₂O₃ catalyst with the assistance of negative corona discharge plasma was presented in this work. The low-temperature production rate and selectivity of ethanol were effectively enhanced by combining catalyst with plasma. The production rate of ethanol increased with increasing of input power and water vapor content, while decreased with the increase of flow rate of CO₂. XRD and XPS results revealed that metallic copper was partly or completely oxidized after reaction and FTIR results uncovered that on the oxidized copper CO₂ adsorbed as carboxylate (COO⁻) which finally hydrogenated to ethanol. The synergistic effect of partly oxidized copper combined with plasma could promote the dissociation of methanol to form ethanol, which resulted in the high selectivity of ethanol.

在这项工作中，提出了一种新颖的有效方法，可在负电晕放电等离子体的辅助下，通过商业化的Cu / ZnO / Al ₂ O ₃催化剂将CO ₂和H ₂ O转化为乙醇。通过催化剂与等离子体的结合，有效提高了乙醇的低温产率和选择性。乙醇的产率随输入功率和水蒸气含量的增加而增加，而随CO ₂流量的增加而降低。XRD和XPS结果表明，金属铜反应后，部分或完全被氧化和FTIR结果揭示，在氧化的铜CO ₂吸附的羧酸根（COO ^-），最后氢化成乙醇。部分氧化的铜与等离子体的协同作用可以促进甲醇的离解形成乙醇，从而提高了乙醇的选择性。