E. Ronzon et G. Delangel, EFFECT OF PRECURSOR, DISPERSITY AND WATER-VAPOR TREATMENT ON STRUCTURE-INSENSITIVE HYDROGENATION REACTIONS ON RH SILICA/, Reaction kinetics and catalysis letters, 62(1), 1997, pp. 75-81
The hydrogenation of 2-cyclohexen-1-one and cyclohexene were studied i
n liquid phase over Rh/SiO2 catalysts. The turnover frequency for both
reactions is independent of the dispersity for each set of catalysts
prepared with organic or chloride rhodium precursors. An effect of the
precursor was observed: the chlorinated catalysts showed a higher act
ivity than the non-chlorinated ones. However, the highest activity was
observed when the catalysts were thermally treated with hydrogen satu
rated with water vapor (HWV).