Author(s)

David Correa Coyac¹, Eugene Kabachkov^2,3, Eugene Kurkin^2,3, Nikolay Vershinin², Igor Balikhin^2,3, Viktor Berestenko², Alexandre Michtchenko¹, Yury Shulga²

¹Instituto Politécnico Nacional, SEPI-ESIME-Zacatenco, Av. IPN S/N, Ed.5, 3-r piso, Ciudad de Mexico, Mexico.
²Federal Research Center of Problem of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Russian Federation.
³Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Russian Federation.

Catalysts of carbon monoxide oxidation were synthesized by deposition of platinum on titanium nitride (TiN). Two substrates with an average particle size of 18 and 36 nm were obtained by hydrogen reduction of titanium tetrachloride in a stream of microwave plasma of nitrogen. The surface of the catalysts was studied by X-ray photoelectron spectroscopy (XPS). The data obtained by us in the present work indicate the presence of oxynitride as a transition layer between nitride and oxide. It was found that the CO oxidation rate on the 9 - 15 wt.% Pt loaded TiN catalysts is 120 times higher than that on the platinum black with a specific surface of 30 m²/g. Increase in the reaction rate of CO oxidation on Pt/TiN catalysts as compared to platinum black can be associated with both an increase in the concentration of CO molecules adsorbed and a decrease in the activation energy of the reaction. Catalysts are promising for use in catalytic air purification systems.

CO Oxidation, Titanium Nitride, Pt/TiN Catalysts, Carbon Monoxide, Microwave Plasma, Platinum Black, X-Ray Photoelectron Spectroscopy

Coyac, D. , Kabachkov, E. , Kurkin, E. , Vershinin, N. , Balikhin, I. , Berestenko, V. , Michtchenko, A. and Shulga, Y. (2022) Pt Supported on Plasma-Chemical Titanium Nitride for Efficient Room-Temperature CO Oxidation. Modern Research in Catalysis, 11, 1-11. doi: 10.4236/mrc.2022.111001.