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Role of PdOx and RuOy Clusters in Oxygen Exchange between Nanocrystalline Tin Dioxide and the Gas Phase Научная публикация

Журнал The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455
Вых. Данные Год: 2013, Том: 117, Номер: 45, Страницы: 23858-23867 Страниц : 10 DOI: 10.1021/jp408646k
Ключевые слова Activation energy; Diffusion; Nanocrystalline alloys; Ruthenium; Sol-gels; Tin
Авторы Marikutsa Artem V. 1 , Rumyantseva Marina N. 1 , Frolov Dmitry D. 1 , Morozov Igor V. 1 , Boltalin Alexander I. 1 , Fedorova Anna A. 1 , Petukhov Ilya A. 1 , Yashina Lada V. 1 , Konstantinova Elizaveta A. 2 , Sadovskaya Ekaterina M. 3 , Abakumov Artem M. 4 , Zubavichus Yan V. 5 , Gaskov Alexander M. 1
Организации
1 Department of Chemistry, Lomonosov Moscow State University, Moscow, 119234, Russia
2 Department of Physics, Lomonosov Moscow State University, Moscow, 119234, Russia
3 Boreskov Institute of Catalysis, RAS, Novosibirsk, 630090, Russia
4 EMAT, University of Antwerp, Antwerp, B-2020, Belgium
5 NRC “Kurchatov Institute”, Moscow, 123182, Russia

Информация о финансировании (1)

1 Министерство образования и науки Российской Федерации 14.B37.21.0087

Реферат: The effect of palladium- and ruthenium-based clusters on nanocrystalline tin dioxide interaction with oxygen was studied by temperature-programmed oxygen isotopic exchange with mass-spectrometry detection. The modification of aqueous sol–gel prepared SnO2 by palladium and, to a larger extent, by ruthenium, increases surface oxygen concentration on the materials. The revealed effects on oxygen exchange—lowering the threshold temperature, separation of surface oxygen contribution to the process, increase of heteroexchange rate and oxygen diffusion coefficient, decrease of activation energies of exchange and diffusion—were more intensive for Ru-modified SnO2 than in the case of SnO2/Pd. The superior promoting activity of ruthenium on tin dioxide interaction with oxygen was interpreted by favoring the dissociative O2 adsorption and increasing the oxygen mobility, taking into account the structure and chemical composition of the modifier clusters.
Библиографическая ссылка: Marikutsa A.V. , Rumyantseva M.N. , Frolov D.D. , Morozov I.V. , Boltalin A.I. , Fedorova A.A. , Petukhov I.A. , Yashina L.V. , Konstantinova E.A. , Sadovskaya E.M. , Abakumov A.M. , Zubavichus Y.V. , Gaskov A.M.
Role of PdOx and RuOy Clusters in Oxygen Exchange between Nanocrystalline Tin Dioxide and the Gas Phase
The Journal of Physical Chemistry C. 2013. V.117. N45. P.23858-23867. DOI: 10.1021/jp408646k WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 29 авг. 2013 г.
Принята к публикации: 2 окт. 2013 г.
Опубликована online: 30 окт. 2013 г.
Опубликована в печати: 14 нояб. 2013 г.
Идентификаторы БД:
Web of science: WOS:000327110500046
Scopus: 2-s2.0-84887859021
РИНЦ: 21890355
Chemical Abstracts: 2013:1570941
Chemical Abstracts (print): 159:688431
OpenAlex: W1969444503
Цитирование в БД:
БД Цитирований
Web of science 29
Scopus 32
РИНЦ 31
OpenAlex 29
Альметрики: