Surface Structure of Pt–Ni–Cr/C Catalysts

Bogdan, T.V.; Kalenchuk, A.N.; Maksimov, S.V.; Bogdan, V.I.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 30 апреля 2021 г.

Авторы: Bogdan T.V., Kalenchuk A.N., Maksimov S.V., Bogdan V.I.
Журнал: Russian Journal of Physical Chemistry A
Том: 95
Номер: 3
Год издания: 2021
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 523
Последняя страница: 529
DOI: 10.1134/S0036024421030067
Аннотация: Abstract—The composition and structure of the surface phases of catalysts based on Pt, Ni, and Cr (platinum,bi- and trimetallic) supported on a Sibunit support are studied via TEM and EDS. The structure of the catalysts before and after reductive hydrogenation are compared. It is found that the metal in the Pt/C system is in a highly dispersed state, mainly in an oxidized form. In double and ternary catalysts, the surface containsmetallic and oxide components; on the surface of Pt–Ni catalyst, the metal phase is more pronounced than with Ni–Cr and Pt–Ni–Cr. Nickel-based catalysts contain large metal particles (up to 30 nm). After reductive hydrogenation, an increase in dispersion and a reduction in the crystallinity of metal particles is observed in all of the studied systems.
Добавил в систему: Богдан Татьяна Вениаминовна

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Surface Structure of Pt–Ni–Cr/C Catalystsстатья

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