Thermal Activation of Pd/CeO2-SnO2 Catalysts for Low-Temperature CO Oxidation Научная публикация
| Журнал |
Applied Catalysis B: Environmental
ISSN: 0926-3373 , E-ISSN: 1873-3883 |
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| Вых. Данные | Год: 2020, Том: 277, Номер статьи : 119275, Страниц : 16 DOI: 10.1016/j.apcatb.2020.119275 | ||||||
| Ключевые слова | CeO2-SnO2 composite; Ceria; CO oxidation; Pd; Thermal stability | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0003 |
| 2 | Федеральное агентство научных организаций России | 0300-2016-0011 (АААА-А17-117040610364-9) |
Реферат:
In this work, the counter precipitation method was used to synthesise Pd/CeO2-SnO2 catalysts, which possess excellent low-temperature activity and high thermal stability. It was revealed that calcination of Pd/CeO2-SnO2 catalysts at 800−1000 °C induces significant growth of catalytic activity in CO oxidation at T<150 °C. This effect of thermal activation for Pd/CeO2-SnO2 catalysts was enhanced when water was admitted to the reaction mixture. In the presence of water the T50 value for the Pd/CeO2-SnO2 catalyst calcined at 900 °C becomes 45 °C lower than for the Pd/CeO2 catalyst. It was found that calcination of the catalysts at T<600 °C leads to the formation of solid solutions based on the fluorite and rutile structures. As the calcination temperature is raised above 600 °C, the solid solutions decompose with formation of catalytically active PdxCe1-xO2-δdispersed phase on the surface of SnO2 nanoparticles. The formed nanoheterogeneous structure provides both high thermal stability and high water resistance of Pd/CeO2-SnO2 catalysts.
Библиографическая ссылка:
Slavinskaya E.M.
, Zadesenets A.V.
, Stonkus O.A.
, Stadnichenko A.I.
, Shchukarev A.V.
, Shubin Y.V.
, Korenev S.V.
, Boronin A.I.
Thermal Activation of Pd/CeO2-SnO2 Catalysts for Low-Temperature CO Oxidation
Applied Catalysis B: Environmental. 2020. V.277. 119275 :1-16. DOI: 10.1016/j.apcatb.2020.119275 WOS Scopus РИНЦ CAPlus OpenAlex
Thermal Activation of Pd/CeO2-SnO2 Catalysts for Low-Temperature CO Oxidation
Applied Catalysis B: Environmental. 2020. V.277. 119275 :1-16. DOI: 10.1016/j.apcatb.2020.119275 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 10 мар. 2020 г. |
| Принята к публикации: | 24 июн. 2020 г. |
| Опубликована online: | 25 июн. 2020 г. |
| Опубликована в печати: | 15 нояб. 2020 г. |
Идентификаторы БД:
| Web of science: | WOS:000552015900083 |
| Scopus: | 2-s2.0-85087023943 |
| РИНЦ: | 43299866 |
| Chemical Abstracts: | 2020:1314125 |
| OpenAlex: | W3037137052 |