Abstract
The carbon monoxide- and the oxygen-covered surfaces of [110]-oriented Pt tips and of [100] and [111]-oriented Rh tips were studied in the lithium field desorption microscope (Li FDM). The catalytic CO-oxidation reaction on Rh and Pt surfaces was studied in situ using Li + and O + 2 field ion modes of imaging. The influence of the modification of electron density near the surface, caused by the presence of Li, on the CO-oxidation reaction on Pt and Rh has been observed. The promoting role of the enhanced electron density in the catalytic oxidation reaction is discussed on the basis of present experimental data and known alkali-gas coadsorption properties.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
