Effect of Pd Deposition Procedure on Activity of Pd/Ce0.5Sn0.5O2 Catalysts for Low-Temperature CO Oxidation
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Catalysis Communications
ISSN: 1566-7367
, E-ISSN: 1873-3905
|
| Вых. Данные |
Год: 2016,
Том: 73,
Страницы: 34-38
Страниц
: 5
DOI:
10.1016/j.catcom.2015.10.012
|
| Ключевые слова |
Catalyst, Ceria, Low-temperature CO oxidation, Palladium, Solid solution, Tin oxide |
| Авторы |
Vasilchenko D.B.
1
,
Gulyaev R.V.
2,3
,
Slavinskaya E.M.
2,3
,
Stonkus O.A.
2,3,4
,
Shubin Y.V.
1,3
,
Korenev S.V.
1,3
,
Boronin A.I.
2,3
|
| Организации |
| 1 |
Nikolaev Institute of Inorganic Chemistry SB RAS, Prosp. Akad. Lavrentieva 3, Novosibirsk 630090, Russia
|
| 2 |
Boreskov Institute of Catalysis SB RAS, Prosp. Akad. Lavrentieva 5, Novosibirsk 630090, Russia
|
| 3 |
Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
|
| 4 |
Research and Educational Center for Energy Efficient Catalysis, Novosibirsk State University, Novosibirsk 630090, Russia
|
|
Информация о финансировании (3)
|
1
|
Министерство образования и науки Российской Федерации
|
14.740.11.0419
|
|
2
|
Российская академия наук
|
124
|
|
3
|
Фонд «Сколково»
|
3 от 25.12.2014
|
Two methods for the preparation of Pd/Ce0.5Sn0.5O2 catalysts have been used: solution combustion (SC) of Pd, Ce and Sn precursors mixture, and incipient wetness impregnation by [Pd(NO3)2(H2O)2] solution of Ce0.5Sn0.5O2-δ support, obtained by the SC technique (SC+IWI). The formation of metallic palladium was observed in addition to ionic palladium in a Pdx(Ce0.5Sn0.5)1-xO2-x-δ solid solution due to high-temperature Pd precursor decomposition during the SC process. IWI of Ce0.5Sn0.5O2-δ support has been demonstrated to lead to a uniform solid solution of Pd2+ ions in the Ce0.5Sn0.5O2-δ matrix at 1% Pd content that resulted in high catalyst activity towards CO oxidation. The increase of Pd content to 5% showed no influence on catalytic activity. This observation is explained by the formation of low active PdO species when Pd content is more than 1%. The proposed SC+IWI method allows obtaining highly active Pd/Ce0.5Sn0.5O2 catalysts with low palladium content.