Exercise 5.16: Associative versus dissociative adsorption The active area of supported group-VIII metals can be determined by adsorbing carbon monoxide. Problems arise with the use of CO because it can adsorb associatively or dissociatively. The type of adsorption is a function of the metal type and the adsorption temperature. The following data describe the adsorption of CO on 10% Ru on Al2O3 at 100C. a) Test the data to determine if the adsorption is associative or dissociative. COg+RuCORuCOg+2RuCRu+ORu b) What is the concentration of total surface ruthenium atoms in terms of mol of sites/g of catalyst? Exercise 5.16: Associative versus dissociative adsorption The active area of supported group-VIII metals can be determined by adsorbing carbon monoxide. Problems arise with the use of CO because it can adsorb associatively or dissociatively. The type of adsorption is a function of the metal type and the adsorption temperature. The following data describe the adsorption of CO on 10% Ru on Al2O3 at 100C. a) Test the data to determine if the adsorption is associative or dissociative. COg+RuCORuCOg+2RuCRu+ORu b) What is the concentration of total surface ruthenium atoms in terms of mol of sites/g of catalyst