Studies on Surface Heterogeneity in Adsorption of Carbon Dioxide on Nickel by Use of the Isotopic Desorption Method

Publisher Website
Google Scholar
Abstract
By applying the isotopic desorption method of Roginsky under the experimental condition of least ambiguity, heterogeneity of nickel surface has been studied on the chemisorption of carbon dioxide by making heavy oxygen as the tracer. It has been shown that about one third of the surface can chemisorb carbon dioxide very strongly at −78, 0 and 19°C, and a part of carbon dioxide chemisorbed is not desorbed even by the evacuation at 300°C. Considering the isotopic balance of heavy oxygen, it can be said that the above effect is brought about by the primary heterogeneity of surface sites but not by the “induced heterogeneity” of adsorbate. However, it has been found difficult to make the detailed nature of such heterogeneity by the present data alone.

This publication has 4 references indexed in Scilit: