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In situ XPS Studies of Kinetic Hysteresis in Methane Oxidation over Pt/γ-Al2O3 Catalysts Научная публикация

Конференция 11th European Workshop on Selective Oxidation - Selectivity in Oxidation - Key to New Resources Valorization (ISO) during the 12th European Congress on Catalysis - Balancing the Use of Fossil and Renewable Resources (Europacat)
30 авг. - 4 сент. 2015 , Kazan
Журнал Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308
Вых. Данные Год: 2016, Том: 278, Номер: Part 1, Страницы: 135-139 Страниц : 5 DOI: 10.1016/j.cattod.2016.05.004
Ключевые слова Concentration hysteresis, In situ X-ray photoelectron spectroscopy, Methane oxidation, Pt/Al2O3
Авторы Pakharukov I.Yu. 1,2 , Prosvirin I.P. 1,2 , Chetyrin I.A. 1,2 , Bukhtiyarov V.I. 1,2 , Parmon V.N. 1,2
Организации
1 Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk, 630090, Russia
2 Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russia

Информация о финансировании (3)

1 Федеральное агентство научных организаций России V.44.1.15.
2 Федеральное агентство научных организаций России V.45.3.2.
3 Российский научный фонд 14-13-01155

Реферат: Recently, we have shown that methane oxidation over Pt/Al2O3 catalysts can proceed via two stable stationary regimes with low and high catalytic activity under identical external conditions. The switching between the regimes occurs abruptly and depends on the oxygen concentration and direction of its change at the constant methane concentration. In situ X-ray photoelectron spectroscopy (XPS) coupled with mass spectrometry was used to correlate changes in the oxidation state of platinum with catalytic activity in the methane oxidation. In situ XPS experiments confirmed the presence of the kinetic hysteresis even at the sub-millibar pressure range (∼0.01mbar). Analysis of the XPS spectra showed that the catalyst activation is associated with partial reduction of the supported platinum.
Библиографическая ссылка: Pakharukov I.Y. , Prosvirin I.P. , Chetyrin I.A. , Bukhtiyarov V.I. , Parmon V.N.
In situ XPS Studies of Kinetic Hysteresis in Methane Oxidation over Pt/γ-Al2O3 Catalysts
Catalysis Today. 2016. V.278. NPart 1. P.135-139. DOI: 10.1016/j.cattod.2016.05.004 WOS Scopus РИНЦ РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 13 дек. 2015 г.
Принята к публикации: 2 мая 2016 г.
Опубликована online: 24 мая 2016 г.
Опубликована в печати: 1 дек. 2016 г.
Идентификаторы БД:
Web of science: WOS:000388053000017
Scopus: 2-s2.0-84971624331
РИНЦ: 28170184 | 41766440
Chemical Abstracts: 2016:809542
OpenAlex: W2406632415
Цитирование в БД:
БД Цитирований
Web of science 26
Scopus 27
РИНЦ 9 26
OpenAlex 25
Альметрики: