Interaction of ZnO surfaces with oxygen after illumination in the presence of CO and O 2

It was found that oxygen chemisorption on ZnO surfaces is accelerated by as much as three orders of magnitude after illumination in the presence of CO + O 2. This accelerated chemisorption is characterized by electron transfer and thermal activation as is oxygen chemisorption on “real” ZnO surfaces....

Full description

Saved in:
Bibliographic Details
Published inSurface science Vol. 76; no. 2; pp. L575 - L579
Main Authors Łagowski, J., Gatos, H.C., Holmstrom, R., Balestra, C.L.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1978
Online AccessGet full text

Cover

More Information
Summary:It was found that oxygen chemisorption on ZnO surfaces is accelerated by as much as three orders of magnitude after illumination in the presence of CO + O 2. This accelerated chemisorption is characterized by electron transfer and thermal activation as is oxygen chemisorption on “real” ZnO surfaces. The observed behavior is attributed to the formation of surface complexes (involving carbon, oxygen and Zn ions) which enhance oxygen chemisorption. These complexes are stable at room temperature and render the surface inert to further CO-interaction.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(78)90115-2