| 초록 |
Propylene oxide (PO) can react with CO2 to produce propylene carbonate (PC). Herein, heterogenization of homogeneous catalyst containing same catalytic functions in quaternary ammonium halide with metal salts has been investigated. We designed the organic-inorganic hybrid material by tethering ammonium halide on mesoporous zeolite, which constructed multifunctional catalyst for cycloaddition of PO with CO2 to produce PC. Such hybrid catalyst showed cooperative catalytic enhancement with about twice amount of higher product yield than catalysts having single function. The studies evidenced that the formation of close proximity between ammonium halide and acid sites is crucial for dual activation of PO. Effect of reaction parameters and catalytic properties on the catalytic performance was also investigated. The details will be discussed in this presentation. |
