Ce–M catalysts (M = Co, Fe, Cu and Zn) synthesized by sol-gel method.
Catalysts characterized by XRD, CO2-TPD, N2 adsorption, SEM-EDX techniques.
Transesterification of propylene carbonate (PC) to produce dimethyl carbonate.
Optimization of methanol/PC molar ratio, catalyst dose, temperature reaction time and kinetics study.