| 초록 |
The emission control of anthropogenic gas CO2 is considered as one of the major challenges, and catalytic hydrogenation of CO2 with renewable H2 to produce clean fuels and chemicals is an environmentally and economically feasible tactic to solve global warming and energy demand. Among those products, aromatics are considered as most important carbon-based building block in chemical industries. Consequently, bifunctional catalysts combined with metal oxides and zeolites are a promising strategy for a direct hydrogenation of CO2 into aromatics. Zeolites are essential components of tandem catalysis due to its unique shape selectivity and acidity. The modifications of zeolites have been attracted in order to manipulate the product selectivity by controlling strengths of acid sites. We report CO2 hydrogenation over composite catalysts such as the ordered mesoporous ZnZrOx mixed with Mo-modified different morphology of ZSM-5. The regulations of the morphology of ZSM-5 remarkably changed the catalytic activity and product distributions. |
