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Synthesis and Properties of a Carbon Monoxide Oxidation Catalyst Based on Platinum and Plasma-Chemical Titanium Nitride

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Abstract

A CO oxidation catalyst that includes Pt clusters applied on nanosized TiN supports with a particle size of 18 and 36 nm has been synthesized. The catalyst has been studied using TEM, X-ray powder diffraction, and XPS methods. It has been found that platinum clusters formed on the support surface are covered with a mixture of platinum and platinum oxide. The coherent scattering range of the Pt cluster is close to 8 nm on a support with titanium nitride particles of 18 nm. The catalytic properties in the reaction of CO oxidation at 295 K and low CO concentrations (<100 mg/m3) have been examined. It has been found that when the platinum content in the catalyst is 9 to 15 wt %, the CO oxidation rate is 120 times higher than that on platinum black with a specific surface area of 30 m2/g. The catalysts are promising for use in catalytic systems for air purification.

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ACKNOWLEDGMENTS

The TEM and XPS studies were carried out on the equipment of the Shared Facility Center of the Scientific Center in Chernogolovka, Russian Academy of Sciences.

Funding

This work was supported by the State Assignment of the Institute of Problems of Chemical Physics, Russian Academy of Sciences, agreement no. 0089-2019-0010.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia

    N. N. Vershinin, V. I. Berestenko, O. N. Efimov, E. N. Kurkin & E. N. Kabachkov

  2. Scientific Center in Chernogolovka, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia

    E. N. Kurkin & E. N. Kabachkov

Authors
  1. N. N. Vershinin
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  2. V. I. Berestenko
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  3. O. N. Efimov
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  4. E. N. Kurkin
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  5. E. N. Kabachkov
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Corresponding author

Correspondence to N. N. Vershinin.

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Translated by V. Avdeeva

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Vershinin, N.N., Berestenko, V.I., Efimov, O.N. et al. Synthesis and Properties of a Carbon Monoxide Oxidation Catalyst Based on Platinum and Plasma-Chemical Titanium Nitride. High Energy Chem 53, 400–406 (2019). https://doi.org/10.1134/S001814391905014X

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  • DOI: https://doi.org/10.1134/S001814391905014X

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