Fig. 7: Leaching test and reuse of Ni1Pd1/CeO2.
a Effect of removal of the catalyst for the hydrogenolysis of model 5. The filled squares indicate the yield of 9 without removal of the catalyst, and the open squares after removal of the catalyst by hot filtration. b Reuse experiments. After the reaction, the catalyst was retrieved by filtration, washed with acetone, water, and ethanol, dried at room temperature, and then applied to each reuse experiment. Reaction conditions: 5 (0.25 mmol), Ni1Pd1/CeO2 (100 mg), NMP (2.0 mL), 180 °C, H2 (1 atm, balloon), 7 h. For each experiment, the catalyst was pre-treated with 1 atm of H2 at 300 °C for 1.0 h. The conversion and yields were determined by 1H NMR and GC analysis, respectively. Each data point represents an average value of two parallel experiments, and standard deviations were added as error bars.
