| Title: | Cu(2)In alloy-embedded ZrO(2) catalysts for efficient CO(2) hydrogenation to methanol: promotion of plasma modification |
| Author(s): | Song F; Gao J; Yang B; Cao Y; Liu H; Xu Q; |
| Address: | "Key Laboratory Under Construction for Volatile Organic Compounds Controlling of Jiangsu Province, School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, China. School of Chemistry and Chemical Engineering, Jiangsu University, Zhengjiang, China" |
| DOI: | 10.3389/fchem.2023.1187762 |
| ISSN/ISBN: | 2296-2646 (Print) 2296-2646 (Electronic) 2296-2646 (Linking) |
| Abstract: | "Cu(1)In(2)Zr(4)-O-C catalysts with Cu(2)In alloy structure were prepared by using the sol-gel method. Cu(1)In(2)Zr(4)-O-PC and Cu(1)In(2)Zr(4)-O-CP catalysts were obtained from plasma-modified Cu(1)In(2)Zr(4)-O-C before and after calcination, respectively. Under the conditions of reaction temperature 270 degrees C, reaction pressure 2 MPa, CO(2)/H(2) = 1/3, and GHSV = 12,000 mL/(g h), Cu(1)In(2)Zr(4)-O-PC catalyst has a high CO(2) conversion of 13.3%, methanol selectivity of 74.3%, and CH(3)OH space-time yield of 3.26 mmol/gcat/h. The characterization results of X-ray diffraction (XRD), scanning electron microscopy (SEM), and temperature-programmed reduction chemisorption (H(2)-TPR) showed that the plasma-modified catalyst had a low crystallinity, small particle size, good dispersion, and excellent reduction performance, leading to a better activity and selectivity. Through plasma modification, the strong interaction between Cu and In in Cu(1)In(2)Zr(4)-O-CP catalyst, the shift of Cu 2p orbital binding energy to a lower position, and the decrease in reduction temperature all indicate that the reduction ability of Cu(1)In(2)Zr(4)-O-CP catalyst is enhanced, and the CO(2) hydrogenation activity is improved" |
| Keywords: | CO2 hydrogenation Cu2In alloy ZrO2 methanol plasma modification; |
| Notes: | "PubMed-not-MEDLINESong, Fujiao Gao, Jia Yang, Bairen Cao, Yan Liu, Huanhuan Xu, Qi eng Switzerland 2023/06/08 Front Chem. 2023 May 23; 11:1187762. doi: 10.3389/fchem.2023.1187762. eCollection 2023" |
