Abstract
Adsorption of hydrogen and carbon monoxide on rhodium has been studied using TDS and ESD techniques. It has been observed that adsorption of hydrogen in the presence of CO results in a high temperature thermal desorption peak which is not present for pure hydrogen coverage. During coadsorption, electron desorption of OH+ is observed. A significant modification occurs in the ESD energy distribution of O+ as a result of coadsorption of H2 and CO. These observations are taken as evidence for creation of a chemical complex resulting from interaction of the parent adsorbed species.
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