The Effect of Metal Deposition Order on the Synergistic Activity of Au–Cu and Au–Ce Metal Oxide Catalysts for CO Oxidation Научная публикация
| Журнал |
Applied Catalysis B: Environmental
ISSN: 0926-3373 , E-ISSN: 1873-3883 |
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| Вых. Данные | Год: 2015, Том: 168-169, Страницы: 303-312 Страниц : 10 DOI: 10.1016/j.apcatb.2014.12.030 | ||||||
| Ключевые слова | Au-Ce, Au-Cu, CO oxidation, Mechanism, Synergism | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (4)
| 1 | Российский фонд фундаментальных исследований | 12-03-00595 (01201262215) |
| 2 | Российский фонд фундаментальных исследований | 12-03-33062 (01201351602) |
| 3 | Российский фонд фундаментальных исследований | 13-03-00320 (01201355981) |
| 4 | Совет по грантам Президента Российской Федерации | МК-92.2013.3 |
Реферат:
Monometallic Au/Al2O3, MxOy/Al2O3 (Mdouble bond; length as m-dashCu; Ce) catalysts and bimetallic catalysts with simultaneously (Au + MxOy) and sequentially (MxOy/Au, Au/MxOy) deposited metals were prepared. Oxidation of CO in the presence of these catalysts at 50–450 °C was studied. The activity of the catalysts increases in the following series: MxOy/Au/Al2O3 > Au/MxOy/Al2O3 > (Au + MxOy)/Al2O3 > CuxOy/Al2O3 > Au/Al2O3 > CexOy/Al2O3. A synergistic effect was detected at 50–250 °C: bimetallic catalysts converted up to 50% of CO to CO2, while the monometallic samples were inactive. Increasing the reaction temperature above 250 °C results in a decreased synergistic effect, although bimetallic catalysts still possess good activity. The electronic and structural organization of the catalyst active sites before and after the reaction were studied by means of XRD, TEM, EDX, XPS, and DRIFTS techniques. The causes for the synergistic effect and the reaction mechanism in the presence of synergistic catalysts are proposed and discussed.
Библиографическая ссылка:
Nikolaev S.A.
, Golubina E.V.
, Krotova I.N.
, Shilina M.I.
, Chistyakov A.V.
, Kriventsov V.V.
The Effect of Metal Deposition Order on the Synergistic Activity of Au–Cu and Au–Ce Metal Oxide Catalysts for CO Oxidation
Applied Catalysis B: Environmental. 2015. V.168-169. P.303-312. DOI: 10.1016/j.apcatb.2014.12.030 WOS Scopus РИНЦ CAPlusCA OpenAlex
The Effect of Metal Deposition Order on the Synergistic Activity of Au–Cu and Au–Ce Metal Oxide Catalysts for CO Oxidation
Applied Catalysis B: Environmental. 2015. V.168-169. P.303-312. DOI: 10.1016/j.apcatb.2014.12.030 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 27 окт. 2014 г. |
| Принята к публикации: | 21 дек. 2014 г. |
| Опубликована online: | 26 дек. 2014 г. |
| Опубликована в печати: | 1 июн. 2015 г. |
Идентификаторы БД:
| Web of science: | WOS:000352747200033 |
| Scopus: | 2-s2.0-84920903316 |
| РИНЦ: | 23964346 |
| Chemical Abstracts: | 2015:20529 |
| Chemical Abstracts (print): | 162:262121 |
| OpenAlex: | W2072558631 |