The oxidation of carbon monoxide on iron oxide

The oxidation of CO on α-Fe2O3 was studied in a flow reactor. The conversion was complete at 650-660 K. The catalytic activity of iron oxide was higher than that of the ferrite-containing xMgOyFe 2O3 catalyst. The adsorption of CO on iron oxide and the kinetics of interaction of carbon monoxide with oxygen atomically adsorbed on the surface of α-Fe2O3 were studied. The kinetic parameters of the oxidation of CO are evidence of the participation of adsorbed oxygen atoms, whose binding energy on the surface of α-Fe 2O3 is lower than that on the surface of the magnesium ferrite-containing catalyst. © Pleiades Publishing, Ltd., 2008.