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Mechanism of Pt Interfacial Interaction with Carbonaceous Support under Reductive Conditions Научная публикация

Журнал Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190 , E-ISSN: 1878-5204
Вых. Данные Год: 2019, Том: 127, Номер: 1, Страницы: 103–115 Страниц : 13 DOI: 10.1007/s11144-019-01554-4
Ключевые слова Platinum catalysts; Carbonaceous support Sibunit; Thermal stability; Reductive conditions; Carbon hydrogenation
Авторы Iost Kristina N. 1 , Borisov Vadim A. 1 , Temerev Victor L. 1 , Surovikin Yury V. 1 , Pavluchenko Polina E. 1 , Trenikhin Mikhail V. 1 , Arbuzov Aleksey B. 1 , Shlyapin Dmitry A. 1 , Tsyrulnikov Pavel G. 1 , Vedyagin Aleksey A. 2
Организации
1 Institute of Hydrocarbon Processing SB RAS, Neftezavodskaya st 54, Omsk, Russian Federation 644040
2 Boreskov Institute of Catalysis SB RAS, pr. Ac. Lavrentieva 5, Novosibirsk, Russian Federation 630090

Информация о финансировании (1)

1 Федеральное агентство научных организаций России V.46.2.5. (АААА-А17-117021450096-8)

Реферат: The interaction of platinum with carbonaceous graphite-like material Sibunit was studied. It was found that carbon covers the platinum particles during the reduction in a hydrogen flow. Chemisorption of CO over such samples has shown that just a small part of Pt surface is opened and accessible for the reagents. The carbon support was additionally pretreated by a high temperature graphitization in nitrogen. The amount of surface oxygen-containing groups was increased by a treatment with nitric acid. An examination of the Pt-loaded samples in hydrogen has revealed that the oxidative treatment does not affect the activity in the carbon hydrogenation process. Both the initial and oxidized Pt-loaded samples facilitate intensive carbon interaction with hydrogen leading to quite similar amounts of methane released. Contrary, the graphitization of the support allows one to minimize the methane formation. Lower specific surface area and absence of amorphous carbon weaken the platinum–carbon interaction and facilitate the formation of larger particles, thus complicating the realization of hydrogenation mechanism.
Библиографическая ссылка: Iost K.N. , Borisov V.A. , Temerev V.L. , Surovikin Y.V. , Pavluchenko P.E. , Trenikhin M.V. , Arbuzov A.B. , Shlyapin D.A. , Tsyrulnikov P.G. , Vedyagin A.A.
Mechanism of Pt Interfacial Interaction with Carbonaceous Support under Reductive Conditions
Reaction Kinetics, Mechanisms and Catalysis. 2019. V.127. N1. P.103–115. DOI: 10.1007/s11144-019-01554-4 WOS Scopus РИНЦ CAPlus OpenAlex ЦНХТ ID
Даты:
Поступила в редакцию: 6 янв. 2019 г.
Принята к публикации: 2 мар. 2019 г.
Опубликована online: 12 мар. 2019 г.
Опубликована в печати: 1 июн. 2019 г.
Идентификаторы БД:
Web of science: WOS:000468213500009
Scopus: 2-s2.0-85072106360
РИНЦ: 45538985
Chemical Abstracts: 2019:672141
OpenAlex: W2922194782
ЦНХТ ID: 856
Цитирование в БД:
БД Цитирований
Scopus 9
Web of science 9
РИНЦ 10
OpenAlex 10
Альметрики: