Catalysis Letters, Vol.52, No.3-4, 151-155, 1998
Two kinds of adsorbed N atoms with different reactivities with H-2 on a Pt0.25Rh0.75(100) surface
Two kinds of adsorbed N atoms exist on a Pt0.25Rh0.75(100) surface. One desorbs at 490 K and the other desorbs at 650 K. The former reacts with H-2 at 400 K, but the latter does not. It is supposed that the adsorption of these two N atoms is responsible of the surface composition, ratio of Pt and Ph.
Keywords:PT-RH ALLOY;SINGLE-CRYSTAL SURFACES;DEPOSITED RH(100);DYNAMIC BEHAVIOR;PT-RH(100);PD(100);CATALYST;PT(100);ACTIVATION;RH/PT(110)