Reactivity of surface hydroxyl groups with metal complex compounds

Abstract

The surface reaction of the adsorbed hydroxyl group OH(a) with Rh(CO) 2(π-C 3H 5) delivered from the gas phase: OH (a) + Rh(CO) 2(π-C 3H 5)(g) → O-Rh( CO ) 2(a) + C 3H 6(a/g) has been studied on Ni(110), Ni(100) and ZnO(1010) mainly by HREELS and TPRS. On Ni(110), p(2×1)-OH(a) was completely diminished by adsorption of Rh(CO) 2(π-C 3H 5) below 300 K. C 3H 6 stayed on the surface after this reaction. On Zn(10 1 0) OH(a) was deposited with surface defects indroduced by Ar ion bombardment. The same reaction occurred with OH(a) on ZnO(10 1 0), but not completely on Ni(100) which was covered with oxide layers.