| 초록 |
CO2-assisted oxidative dehydrogenation of propane (ODPC) has attracted attention as economic CO2 reduction process due to simultaneous propylene production. Participation of CO2 as oxidant can overcome equilibrium conversion of propane by involving reverse water-gas shift reaction, which react with abstracted hydrogen by dehydrogenation. However, presence of CO2 shows lower propane activity than absence of CO2 due to competitive adsorption between propane and CO2 on active site. Therefore, preparation of bifunctional catalyst and elucidating the role of each active site have been required. In this study, we prepared bifunctional Mo-incorporated ZrO2 catalysts to demonstrate the role of active site for propane and CO2. Incorporation of Mo enhanced catalytic activity than pure ZrO2. Quantitative and qualitative analyses show that the enhanced catalytic activity is attributed to the generated acid site in Mo-Zr interface by incorporation of Mo. This work provides insights into the understanding of active sites in ODPC. |
