Effect of oxide-oxide interaction on the catalytic properties of Co/Al2O3 in carbon monoxide hydrogenation

The effect of oxide-oxide interaction on the catalytic properties of Co in CO hydrogenation was studied using a Co/Al2O3 catalyst as an example. It is shown that suppression of oxide-oxide interaction by modifying the surface of the Al2O3 support with magnesium oxide enhances the catalytic activity. The formation of MgAl2O3 spinel on the Al2O3 surface decreases the Lewis a cidity of the surface and, as a result, changes the amount of carbon deposi ted on the catalyst surface during hydrogenation.