Stabilization of a Carbon Support by Surface Oxygen with Respect to Nitrogen Dioxide in the Pd/HOPG Model System Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2023, Volume: 64, Number: 3, Pages: 320–327 Pages count : 8 DOI: 10.1134/S0023158423030096 | ||
| Tags | palladium, highly oriented pyrolytic graphite (HOPG), NO2, X-ray photoelectron spectroscopy (XPS) | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0002 |
Abstract:
In this work, X-ray photoelectron spectroscopy (XPS) was used to study the effect of preliminary oxidative treatment of a carbon support surface on the results of NO2 interaction with model systems prepared by palladium deposition onto highly oriented pyrolytic graphite (HOPG). It was found that, in Pd/HOPG samples with the atomic ratios [O]/[C] ≤ 0.0035, the carbon support was oxidized with the destruction of its structure to a depth of 10–15 graphene layers. In this case, the palladium particles remained in a metallic state, and they penetrated into the near-surface layer of the support due to the deep oxidation of adjacent carbon atoms. At the atomic ratio [O]/[C] ≈ 0.01–0.02, the result of the interaction changed dramatically. In this case, the support remained stable, and the palladium particles were oxidized to form an oxide. This finding explained the high stability of supported palladium catalysts prepared on Sibunit carbon supports in oxidative catalysis reactions.
Cite:
Smirnov M.Y.
, Kalinkin A.V.
, Bukhtiyarov V.I.
Stabilization of a Carbon Support by Surface Oxygen with Respect to Nitrogen Dioxide in the Pd/HOPG Model System
Kinetics and Catalysis. 2023. V.64. N3. P.320–327. DOI: 10.1134/S0023158423030096 WOS Scopus РИНЦ AN OpenAlex
Stabilization of a Carbon Support by Surface Oxygen with Respect to Nitrogen Dioxide in the Pd/HOPG Model System
Kinetics and Catalysis. 2023. V.64. N3. P.320–327. DOI: 10.1134/S0023158423030096 WOS Scopus РИНЦ AN OpenAlex
Original:
Смирнов М.Ю.
, Калинкин А.В.
, Бухтияров В.И.
Стабилизация углеродного носителя поверхностным кислородом по отношению к диоксиду азота в модельной системе Pd/ВОПГ
Кинетика и катализ. 2023. Т.64. №3. С.336-344. DOI: 10.31857/S0453881123030115 РИНЦ OpenAlex
Стабилизация углеродного носителя поверхностным кислородом по отношению к диоксиду азота в модельной системе Pd/ВОПГ
Кинетика и катализ. 2023. Т.64. №3. С.336-344. DOI: 10.31857/S0453881123030115 РИНЦ OpenAlex
Dates:
| Submitted: | Nov 25, 2022 |
| Accepted: | Jan 28, 2023 |
| Published print: | Jun 23, 2023 |
| Published online: | Jun 23, 2023 |
Identifiers:
| Web of science: | WOS:001013206900011 |
| Scopus: | 2-s2.0-85162958233 |
| Elibrary: | 54061265 |
| Chemical Abstracts: | 2023:1309167 |
| OpenAlex: | W4381734379 |