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Platinum Nanoparticles on Al2O3: Correlation Between the Particle Size and Activity in Total Methane Oxidation Научная публикация

Журнал Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694
Вых. Данные Год: 2009, Том: 268, Номер: 1, Страницы: 60-67 Страниц : 8 DOI: 10.1016/j.jcat.2009.09.001
Авторы Bekk Irene E. 1 , Bukhtiyarov Valerii I. 1 , Pakharukov Ilya Yu. 1 , Zaikovsky Vladimir I. 1 , Kriventsov Vladimir V. 1 , Parmon Valentin N. 1
Организации
1 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospect Akademika Lavrentieva 5, Novosibirsk 630090, Russia
Реферат: Catalytic activity of the size-controlled platinum nanoparticles supported on the acid-pretreated γ-alumina has been tested in complete methane oxidation under lean conditions. The mean sizes of platinum particles varied from 1.3 to 10 nm with the narrow size distribution (TEM data). It has been found that the reaction under study is strongly size sensitive. The size dependence of the specific catalytic activity is narrow and bell-shaped, with the maximum TOF value observed for the catalysts containing partially oxidized platinum with the mean particle sizes of about 2 nm. The observed strong size sensitivity is shown to originate from the size dependence of the apparent activation energy of the methane oxidation and/or the platinum oxidation state in the catalytically active nanoparticles.
Библиографическая ссылка: Bekk I.E. , Bukhtiyarov V.I. , Pakharukov I.Y. , Zaikovsky V.I. , Kriventsov V.V. , Parmon V.N.
Platinum Nanoparticles on Al2O3: Correlation Between the Particle Size and Activity in Total Methane Oxidation
Journal of Catalysis. 2009. V.268. N1. P.60-67. DOI: 10.1016/j.jcat.2009.09.001 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact
Даты:
Поступила в редакцию: 24 июл. 2009 г.
Принята к публикации: 4 сент. 2009 г.
Опубликована online: 8 окт. 2009 г.
Опубликована в печати: 15 нояб. 2009 г.
Идентификаторы БД:
Web of science: WOS:000272349000007
Scopus: 2-s2.0-71549115198
РИНЦ: 15303761
Chemical Abstracts: 2009:1351128
Chemical Abstracts (print): 152:15418
OpenAlex: W1998831406
Sciact: 2890
Цитирование в БД:
БД Цитирований
Scopus 135
OpenAlex 131
Альметрики: