Surface State of Catalysts of CO Oxidation, Obtained by Depositing Platinum on Powder of Plasma-Chemical Titanium Nitride

Catalysts of low-temperature carbon monoxide oxidation are obtained by depositing platinum clusters on surfaces of plasma-chemical titanium nitride. The catalyst surfaces are studied by means of X-ray photoelectron spectroscopy (XPES). It is shown that in the catalysts, platinum is not only in conta...

Full description

Saved in:
Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2020-03, Vol.94 (3), p.538-543
Main Authors: Kabachkov, E. N., Kurkin, E. N., Vershinin, N. N., Balikhin, I. L., Berestenko, V. I., Shul’ga, Yu. M.
Format: Article
Language:English
Subjects:
Carbon monoxide
Catalysts
Chemical Kinetics and Catalysis
Chemical synthesis
Chemistry
Chemistry and Materials Science
Low temperature
Oxidation
Oxide coatings
Photoelectrons
Physical Chemistry
Platinum
Spectrum analysis
Titanium
Titanium dioxide
Titanium nitride
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Catalysts of low-temperature carbon monoxide oxidation are obtained by depositing platinum clusters on surfaces of plasma-chemical titanium nitride. The catalyst surfaces are studied by means of X-ray photoelectron spectroscopy (XPES). It is shown that in the catalysts, platinum is not only in contact with a thin layer of titanium dioxide but in possible direct contact with titanium oxynitride as well. It is found that treating the catalyst with carbon monoxide does not result in the total reduction of platinum. When XPE spectra of the initial powders of titanium nitride are compared to those of the catalyst, it is shown that the oxide film on the nitride surface grows thinner when the catalyst is synthesized.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024420030127