Synthesis and Properties of a Carbon Monoxide Oxidation Catalyst Based on Platinum and Plasma-Chemical Titanium Nitride
- Авторы: Vershinin N.N.1, Berestenko V.I.1, Efimov O.N.1, Kurkin E.N.1,2, Kabachkov E.N.1,2
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Учреждения:
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- Scientific Center in Chernogolovka, Russian Academy of Sciences
- Выпуск: Том 53, № 5 (2019)
- Страницы: 400-406
- Раздел: Plasma Chemistry
- URL: https://bakhtiniada.ru/0018-1439/article/view/157752
- DOI: https://doi.org/10.1134/S001814391905014X
- ID: 157752
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Аннотация
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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Об авторах
N. Vershinin
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: vernik@icp.ac.ru
Россия, Chernogolovka, Moscow oblast, 142432
V. Berestenko
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: vernik@icp.ac.ru
Россия, Chernogolovka, Moscow oblast, 142432
O. Efimov
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: vernik@icp.ac.ru
Россия, Chernogolovka, Moscow oblast, 142432
E. Kurkin
Institute of Problems of Chemical Physics, Russian Academy of Sciences; Scientific Center in Chernogolovka, Russian Academy of Sciences
Email: vernik@icp.ac.ru
Россия, Chernogolovka, Moscow oblast, 142432; Chernogolovka, Moscow oblast, 142432
E. Kabachkov
Institute of Problems of Chemical Physics, Russian Academy of Sciences; Scientific Center in Chernogolovka, Russian Academy of Sciences
Email: vernik@icp.ac.ru
Россия, Chernogolovka, Moscow oblast, 142432; Chernogolovka, Moscow oblast, 142432
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