Effects of potassium on the chemisorption of CO2 and CO on the Mo2C/Mo(100) surface

Authors
Solymosi, F Bugyi, L
Citation
F. Solymosi et L. Bugyi, Effects of potassium on the chemisorption of CO2 and CO on the Mo2C/Mo(100) surface, CATAL LETT, 66(4), 2000, pp. 227-230
Citations number
29
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011372X → ACNP
Volume
66
Issue
4
Year of publication
2000
Pages
227 - 230
Database
ISI
SICI code
1011-372X(2000)66:4<227:EOPOTC>2.0.ZU;2-8
Abstract
The interaction of CO2 with K-promoted Mo2C/Mo(100) has been studied with h igh-resolution electron energy loss spectroscopy, work function measurement s and temperature-programmed desorption. Pre-adsorbed potassium dramaticall y affects the adsorption behavior of CO2 on the Mo2C/Mo(100) surface. It in creases the rate of adsorption, the binding energy of CO2 and it induces th e dissociation of CO2 through the formation of negatively charged CO2. Pota ssium adatoms also promote the dissociation of adsorbed CO over Mo2C.