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Alumina-Supported Platinum Catalysts: Local Atomic Structure and Catalytic Activity for Complete Methane Oxidation Научная публикация

Журнал Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875
Вых. Данные Год: 2014, Том: 486, Страницы: 12-18 Страниц : 7 DOI: 10.1016/j.apcata.2014.08.014
Ключевые слова Alumina-supported platinum catalysts, Local structure, Radial distribution function of electron density, Total methane oxidation
Авторы Pakharukova Vera P. 1,2 , Pakharukov Ilya Yu. 1,2 , Bukhtiyarov Valerii I. 1,2 , Parmon Valentin N. 1,2
Организации
1 Boreskov Institute of Catalysis, pr. Lavrentieva 5, 630090 Novosibirsk, Russia
2 Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia

Информация о финансировании (1)

1 Российский научный фонд 14-23-00037

Реферат: The structure of platinum species in a model set of monodisperse Pt/γ-Al2O3 catalysts was studied using radial distribution function (RDF) of electron density. Catalyst preparation conditions were revealed to considerably affect the dispersion and structure of supported platinum. Cation vacancies on the γ-Al2O3 surface were essential to anchor electron deficient platinum atoms and clusters. Platinum segregation with forming finely dispersed metal particles was evident in some catalysts. The methane total oxidation over the Pt/γ-Al2O3 catalysts was established to depend strongly on the platinum oxidation state. The catalysts containing oxidized platinum species and highly dispersed oxidizable Pt0 particles were more active. The metal–support interaction improved the performance of the catalysts indirectly, by stabilizing the platinum dispersion.
Библиографическая ссылка: Pakharukova V.P. , Pakharukov I.Y. , Bukhtiyarov V.I. , Parmon V.N.
Alumina-Supported Platinum Catalysts: Local Atomic Structure and Catalytic Activity for Complete Methane Oxidation
Applied Catalysis A: General. 2014. V.486. P.12-18. DOI: 10.1016/j.apcata.2014.08.014 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 4 июн. 2014 г.
Принята к публикации: 15 авг. 2014 г.
Опубликована online: 23 авг. 2014 г.
Опубликована в печати: 22 сент. 2014 г.
Идентификаторы БД:
Web of science: WOS:000344439400002
Scopus: 2-s2.0-84907262705
РИНЦ: 23989652
Chemical Abstracts: 2014:1450449
Chemical Abstracts (print): 161:461434
OpenAlex: W2018142249
Цитирование в БД:
БД Цитирований
Web of science 24
Scopus 25
РИНЦ 27
OpenAlex 26
Альметрики: