Reactivity of Oxygen in Methanol Partial Oxidation over Au(111) Model Catalyst Surface Тезисы доклада
Конференция |
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 авг. - 4 сент. 2015 , Казань |
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Сборник | EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts Сборник, Boreskov Institute of Catalysis. Novosibirsk.2015. 2184 c. ISBN 9785906376107. РИНЦ |
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Вых. Данные | Год: 2015, Страницы: 359-360 Страниц : 2 | ||||||
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Организации |
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Информация о финансировании (2)
1 | Türkiye Bilimsel ve Teknolojik Araştırma Kurumu | 112T589 |
2 | Türkiye Bilimsel ve Teknolojik Araştırma Kurumu | 2221 |
Реферат:
The partial oxidation and alcohols oxidative coupling on gold requires the presence of adsorbed atomic oxygen. Although molecular O2 does not dissociate on the gold surface, atomic oxygen layers can be prepared by ozone decomposition. In the current work, we investigated the different oxygen species on the Au(111) model catalyst surface and their reactivities in methanol partial oxidation. Adsorbed oxygen layers prepared at various temperatures reveal drastically different reactivities towards methanol: the oxygen layers prepared at 140 K demonstrate higher activity than that of 460 K. With increasing temperature, the active oxygen species were observed to transform into inactive oxygen. The XPS and TPD analysis of oxygen layers reveal the presence of inactive subsurface oxygen at higher temperatures. Current results are critically important for the molecular understanding of the fundamental aspects of oxidative catalysis by gold.
Библиографическая ссылка:
Vovk E.I.
, Karatok M.
, Shah S.A.A.
, Turksoy A.
, Bukhtiyarov V.I.
, Ozensoy E.
Reactivity of Oxygen in Methanol Partial Oxidation over Au(111) Model Catalyst Surface
В сборнике EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts. – Boreskov Institute of Catalysis., 2015. – C.359-360. – ISBN 9785906376107.
Reactivity of Oxygen in Methanol Partial Oxidation over Au(111) Model Catalyst Surface
В сборнике EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts. – Boreskov Institute of Catalysis., 2015. – C.359-360. – ISBN 9785906376107.
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