| المؤلفون: |
Mostafa MMM; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. mmoustafa@kau.edu.sa., Li Y; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China. abhishek@whu.edu.cn., Halawani W; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. mmoustafa@kau.edu.sa., Narasimharao K; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. mmoustafa@kau.edu.sa., Abdel Salam M; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. mmoustafa@kau.edu.sa., Alshehri AA; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. mmoustafa@kau.edu.sa., Khdary NH; King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi Arabia., Al-Faifi S; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia. mmoustafa@kau.edu.sa., Gu L; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China. abhishek@whu.edu.cn., Dutta Chowdhury A; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China. abhishek@whu.edu.cn. |
| مستخلص: |
The increased awareness of carbon management has prompted the scientific community towards delivering sustainable catalytic technologies, preferably from CO 2 . Copper-based multifunctional catalysts are the most frequently used for thermal hydrogenation and electrocatalytic reduction of CO 2 (CO 2 R) processes. To improve the understanding and efficacy of these materials for the CO 2 R reaction, Cu-Zn oxides combined with Al 2 O 3 and ZrO 2 were synthesized by the coprecipitation method and annealed at 500 °C, 600 °C, and 700 °C ( i.e. , Cu/ZnO/Al 2 O 3 - x and Cu/ZnO/ZrO 2 systems- x , where x is the annealing temperature) to tune their multi-functionality. We demonstrate that the composition of Cu-Zn oxides and pretreatment temperature impact the electrocatalytic CO 2 R performance, where CuZnZr-600 and CuZnAl-700 materials are superior. Different characterization tools were employed to rationalize the results described in this work, which could provide a way to design an efficient catalytic system for the CO 2 R process. |
