The effect of pre-reduction in solution with chemical reagents on the catalytic performance and catalyst properties of Pd/carbon catalysts was systematically investigated with a multitechnique approach. The results are critically discussed in comparison to those recently obtained on analogous Pd/alumina catalysts. It was proved that the Pd phase on the carbon surface is characterized by a high mobility, opposite to what occurs on alumina. As a result, the Pd particles on carbon aggregate together during pre-reduction, with a consequent decrease in available metal surface. Pd particles remain aggregated also in reaction conditions; the decreased Pd dispersion negatively affects the catalyst activity in the debenzylation of 4-benzyloxyphenol.
|Numero di pagine||8|
|Stato di pubblicazione||Published - 2014|
All Science Journal Classification (ASJC) codes
Giannici, F., Pellegrini, R., Agostini, G., Lamberti, C., Leofanti, G., Longo, A., & Groppo, E. (2014). Effect of Pre-Reduction on the Properties and the Catalytic Activity of Pd/Carbon Catalysts: A Comparison with Pd/Al2O3. ACS Catalysis, 4, 187-194.