DETERMINATION OF ACTIVE METAL-SURFACE SITES BY CARBON-MONOXIDE CHEMISORPTION ON RU-AG BIMETALLIC SUPPORTED ALLOY SYSTEM

Supported Ruthenium: Silver bimetallic alloy system dispersed on a hig h surface area Alumina support prepared by co-impregnation method was studied using CO-chemisorption for the determination cb active metal s ite/metal surface area. The data indicates the presence of Ag on the s urface of Rn. With me increase of Ag loadings a decrease in the CO ads orption occurred indicating that presence of Ag masks the active sites responsible for M-adsorption. The data has been interpreted in teems of geometric and electronic effect caused by the addition of Ag.