| 초록 |
The effects of Ce substitution into the iron-containing mixed metal oxides were investigated for ethane dehydrogenation to ethylene as well as CO2 activation through two-step chemical looping oxidative dehydrogenation (CL-ODH) reaction. The CL-ODH has potential to overcome the drawbacks of steam cracking of ethane, which is the known process with a higher energy consumption, coke formation, and significant CO2 and NOx emission. In the present study, the Ce substitution into the FeTiOx mixed metal oxides largely enhanced catalytic activity and stability. The promotional effects of Ce promoter were investigated through many surface characterization tools, and the results of H2-TPR and O2-TPD revealed that the Ce substitution on FeTiOx enhanced the redox ability through a facile oxygen transfer on the surfaces. |
