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Mechanism of CH4 Dry Reforming by Pulse Microcalorimetry: Metal Nanoparticles on Perovskite/Fluorite Supports with High Oxygen Mobility Научная публикация

Журнал Thermochimica Acta
ISSN: 0040-6031 , E-ISSN: 1872-762X
Вых. Данные Год: 2013, Том: 567, Страницы: 27- 34 Страниц : 8 DOI: 10.1016/j.tca.2013.01.034
Ключевые слова Bonding strength and reactivity of oxygen species, CH4 dry reforming, Metal clusters, Perovskite and fluorite oxide supports, Pulse microcalorimetry, Redox mechanism
Авторы Sadykov Vladislav 1,2 , Rogov Vladimir 1,2 , Ermakova Eugenia 2 , Arendarsky Dmitry 1 , Mezentseva Natalia 1,2 , Alikina Galina 1 , Sazonova Natalia 1 , Bobin Aleksey 1 , Pavlova Svetlana 1 , Schuurman Yves 3 , Mirodatos Claude 3
Организации
1 Boreskov Institute of Catalysis, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia
3 Institut de Recherches sur la catalyse et l’environnement de Lyon, France

Информация о финансировании (4)

1 Российский фонд фундаментальных исследований 09-03-93112
2 Посольство Франции в России
3 Министерство образования и науки Российской Федерации
4 European Commission 228953 FP7-NMP-2008-LARGE-2 OCMOL

Реферат: The mechanism of CH4 dry reforming on Pt, Ru, Ni, Ni + Ru-supported perovskite (PrFeOx, LaPrMnCrOx) or fluorite (LnCeZrOx) oxides was studied using a Setaram Sensys DSC TG calorimeter and a pulse kinetic installation. For catalysts in the steady-state, CH4 and CO2 transformation in separate pulses proceeds with the rate and products selectivity equal to that in mixed CO2 + CH4 pulses. Heat effects of separate stages correspond to CH4 oxidation into syngas by strongly bound bridging oxygen forms of support (heat of adsorption up to 650 kJ mol−1 O2 for fluorites and ∼500 kJ mol−1 O2 for perovskites) and their replenishment by CO2 dissociation, respectively. These features demonstrate a step-wise red-ox (Mars-van-Crevelen) mechanism of CH4 dry reforming. Fast oxygen transfer from the sites of oxide support to the metal/oxide interface provides required conjugation of stages.
Библиографическая ссылка: Sadykov V. , Rogov V. , Ermakova E. , Arendarsky D. , Mezentseva N. , Alikina G. , Sazonova N. , Bobin A. , Pavlova S. , Schuurman Y. , Mirodatos C.
Mechanism of CH4 Dry Reforming by Pulse Microcalorimetry: Metal Nanoparticles on Perovskite/Fluorite Supports with High Oxygen Mobility
Thermochimica Acta. 2013. V.567. P.27- 34. DOI: 10.1016/j.tca.2013.01.034 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 15 окт. 2012 г.
Принята к публикации: 30 янв. 2013 г.
Опубликована online: 16 февр. 2013 г.
Опубликована в печати: 10 сент. 2013 г.
Идентификаторы БД:
Web of science: WOS:000323408100005
Scopus: 2-s2.0-84884531205
РИНЦ: 20457146
Chemical Abstracts: 2013:341407
Chemical Abstracts (print): 160:76351
OpenAlex: W2048247337
Цитирование в БД:
БД Цитирований
Web of science 28
Scopus 30
РИНЦ 28
OpenAlex 31
Альметрики: