Reaction Kinetics and Catalysis Letters, Vol.78, No.1, 151-159, 2003
Vapor phase reduction of cyclohexanone to cyclohexanol on CexZr1-xO2 solid solutions
Reduction of cyclohexanone to cyclohexanol using propane-2-ol as hydrogen donor has been carried out in vapor phase on CexZr1-xO2 solid solutions synthesized by combustion at 302degreesC. The solid solutions around 0.4 mol% cerium content show better catalytic activity compared to pure ZrO2 and the selectivity to cyclohexanol is 98%. A moderate acid-base and good redox properties of CexZr1-xO2 solid solutions are seen to be responsible for the catalytic activity. A possible mechanism of hydride transfer has been proposed with cerium ions as promoters.