In situ Preparation and Investigation of Pd/CeO2 Catalysts for the Low-Temperature Oxidation of CO Научная публикация
| Журнал |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Вых. Данные | Год: 2012, Том: 439-440, Страницы: 41 -50 Страниц : 10 DOI: 10.1016/j.apcata.2012.06.045 | ||||
| Ключевые слова | CeO 2, Ceria, Low-temperature CO oxidation, Palladium, Pd, Surface phase, XAS, XPS | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Министерство образования и науки Российской Федерации | 14.740.11.0419 |
Реферат:
The formation of Pd0.05Ce0.95O2 catalysts for the low-temperature oxidation of CO by the thermal decomposition of Ce(NO3)3 and Pd(NO3)2 with oxygen was studied by X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) directly in the preparation chamber of a spectrometer. Palladium is represented by two species on the surface of the catalysts: solid solutions of PdxCe1−xO2−δ and palladium clusters. Pd clusters can be formed in an oxidized or reduced state depending on the reaction conditions. Treatment of the catalysts with hydrogen leads to a sharp increase in CO conversion because of the reduction of parts of the palladium accompanying the formation of the metallic clusters. The testing of “real” and model catalysts was conducted in a light-off mode. The correlation between the activity of the Pd/CeO2 catalysts and the states of the palladium was proposed.
Библиографическая ссылка:
Gulyaev R.V.
, Stadnichenko A.I.
, Slavinskaya E.M.
, Ivanova A.S.
, Koscheev S.V.
, Boronin A.I.
In situ Preparation and Investigation of Pd/CeO2 Catalysts for the Low-Temperature Oxidation of CO
Applied Catalysis A: General. 2012. V.439-440. P.41 -50. DOI: 10.1016/j.apcata.2012.06.045 WOS Scopus РИНЦ CAPlusCA OpenAlex
In situ Preparation and Investigation of Pd/CeO2 Catalysts for the Low-Temperature Oxidation of CO
Applied Catalysis A: General. 2012. V.439-440. P.41 -50. DOI: 10.1016/j.apcata.2012.06.045 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 31 янв. 2012 г. |
| Принята к публикации: | 22 июн. 2012 г. |
| Опубликована online: | 3 июл. 2012 г. |
| Опубликована в печати: | 1 окт. 2012 г. |
Идентификаторы БД:
| Web of science: | WOS:000308731400006 |
| Scopus: | 2-s2.0-84865137437 |
| РИНЦ: | 20495119 |
| Chemical Abstracts: | 2012:1037145 |
| Chemical Abstracts (print): | 157:445390 |
| OpenAlex: | W1966061923 |