The effects of potassium and sulfur on the chemisorption of CO and benzene on the Pt(111) surface have been studied by thermal desorption spectroscopy (TDS). Potassium causes an increase in the desorption peak temperature of CO and a decrease in that of benzene. Sulfur, on the other hand, causes a decrease in the desorption peak temperatures for both benzene and CO. We interpret the effects of potassium on CO and benzene adsorption as electronic, while for sulfur, structural effects may dominate.
All Science Journal Classification (ASJC) codes
- Colloid and Surface Chemistry