Synthesis and Properties of a Carbon Monoxide Oxidation Catalyst Based on Titanium Dioxide and Platinum Nanoparticles

N. N. Vershinin; Вершинин Н. Н.; I L. Balikhin; Балихин И. Л.; E. N. Kurkin; Куркин Е. Н.; E. N. Kabachkov; Кабачков Е. Н.; Yu. M. Shulga; Шульга Ю. М.

doi:10.31857/S0023119323040149

Synthesis and Properties of a Carbon Monoxide Oxidation Catalyst Based on Titanium Dioxide and Platinum Nanoparticles

Authors: Vershinin N.N.¹, Balikhin IL.¹^,2, Kurkin E.N.¹^,2, Kabachkov E.N.¹^,2, Shulga Y.M.¹
Affiliations:
1. Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
2. Institute of Solid State Physics, Russian Academy of Sciences
Issue: Vol 57, No 4 (2023)
Pages: 298-303
Section: НАНОРАЗМЕРНЫЕ СИСТЕМЫ И МАТЕРИАЛЫ
URL: https://ruspoj.com/0023-1193/article/view/661492
DOI: https://doi.org/10.31857/S0023119323040149
EDN: https://elibrary.ru/QOBUDD
ID: 661492

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Abstract

Carbon monoxide oxidation catalysts comprising Pt clusters on titanium dioxide with an oxide particle size of 6 and 20 nm have been synthesized. The catalysts have been studied using TEM, XRD, and XPS techniques, and it has been found that platinum clusters coated with a mixture of platinum oxides are formed on the support surface. The coherent scattering region of the Pt cluster is close to 5–6 nm for the studied oxide supports. The catalytic properties in the CO oxidation reaction at 295 K and low CO concentrations
(less than 100 mg/m3) have been examined. The catalyst based on titania with a particle size of 20 nm and a platinum loading of 10 wt % has been found to have the CO oxidation rate 100 times higher than that on platinum black with a specific surface area of 30 m2/g. The catalysts are promising for use in catalytic air purification systems.

Keywords

CO conversion catalyst, nanoparticles, titanium dioxide, platinum

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