The temperature programmed desorption technique was applied to investigate the changed characteristics of Pt/SiO2 (EUROPT-1) upon alkali doping. CO desorption peak maxima shifted towards higher temperature as the concentration of alkali increased. This indicated strengthening of catalyst-CO bonding. These results are similar to those previously observed in the case of thermal desorption of CO from potassium covered PI(III) single crystal.


M AHMAD ,G S MCDOUGALL ,