The catalytic activity of M(I)M(2)(II)O(3) spinel-type complex oxides
(M(I) = Cu, Ni, Mn, Zn, Mg, Co, M(II) = Co, Cr, Al) in the oxidation o
f CO and ethylbenzene has been investigated. The Go-containing catalys
ts were more active than the Cr- and Al-containing catalysts. The natu
re of the cation influenced the catalytic activity. Higher activities
were observed for the catalysts containing two transition elements. A
correlation between the catalytic and adsorption properties was establ
ished.