Chemical fixation of carbon dioxide to propylene carbonate over TBD/SiO2 and DBU/SiO2 catalysts

Zhang XH; Zhang YX; Yang YH; Wei Q; Zhang XC

Reaction Kinetics and Catalysis Letters, Vol.94, No.2, 385-390, 2008

DOI10.1007/s11144-008-5275-9 Export Citation

Chemical fixation of carbon dioxide to propylene carbonate over TBD/SiO2 and DBU/SiO2 catalysts

Zhang XH, Zhang YX, Yang YH, Wei Q, Zhang XC

Amine-functionalized silica catalysts (1,5,7-triazabicyclo[4,4,0](tec-5-ene/SiO2) TBD/SiO2 and (Diazabicycloundecene/SiO2) DBU/SiO2, which were characterized by Si-29 NMR and indicator dye adsorption, were prepared by ultrasonic technique under mild conditions. Such hybrid solid bases showed high catalytic activity and good reusability towards CO2 coupling with epoxide.

Keywords:functionalized silica;ultrasonic technique;catalyst;chemical fixation;CO2;propylene carbonate