Acetaldehyde Partial Oxidation on the Au(111) Model Catalyst Surface: C–C Bond Activation and Formation of Methyl Acetate as an Oxidative Coupling Product Научная публикация
Конференция |
European Conference on Surface Science (ECOSS 30) 31 авг. - 5 сент. 2014 , Antalya |
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Журнал |
Surface Science
ISSN: 0039-6028 |
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Вых. Данные | Год: 2015, Том: 641, Страницы: 289-293 Страниц : 5 DOI: 10.1016/j.susc.2015.04.005 | ||||
Ключевые слова | Acetaldehyde, Au(111), Methyl acetate, Oxidative coupling, Partial oxidation | ||||
Авторы |
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Организации |
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Информация о финансировании (3)
1 | Türkiye Bilimsel ve Teknolojik Araştırma Kurumu | 112T589 |
2 | Bilkent University | |
3 | Türkiye Bilimsel ve Teknolojik Araştırma Kurumu | 2221 |
Реферат:
Partial oxidation of acetaldehyde (CH3CHO) on the oxygen pre-covered Au(111) single crystal model catalyst was investigated via Temperature Programmed Desorption (TPD) and Temperature Programmed Reaction Spectroscopy (TPRS) techniques, where ozone (O3) was utilized as the oxygen delivery agent providing atomic oxygen to the reacting surface. We show that for low exposures of O3 and small surface oxygen coverages, two partial oxidation products namely, methyl acetate (CH3COOCH3) and acetic acid (CH3COOH) can be generated without the formation of significant quantities of carbon dioxide. The formation of methyl acetate as the oxidative coupling reaction product implies that oxygen pre-covered Au(111) single crystal model catalyst surface can activate C–C bonds. In addition to the generation of these products; indications of the polymerization of acetaldehyde on the gold surface were also observed as an additional reaction route competing with the partial and total oxidation pathways. The interplay between the partial oxidation, total oxidation and polymerization pathways reveals the complex catalytic chemistry associated with the interaction between the acetaldehyde and atomic oxygen on catalytic gold surfaces.
Библиографическая ссылка:
Karatok M.
, Vovk E.I.
, Shah A.A.
, Turksoy A.
, Ozensoy E.
Acetaldehyde Partial Oxidation on the Au(111) Model Catalyst Surface: C–C Bond Activation and Formation of Methyl Acetate as an Oxidative Coupling Product
Surface Science. 2015. V.641. P.289-293. DOI: 10.1016/j.susc.2015.04.005 WOS Scopus РИНЦ
Acetaldehyde Partial Oxidation on the Au(111) Model Catalyst Surface: C–C Bond Activation and Formation of Methyl Acetate as an Oxidative Coupling Product
Surface Science. 2015. V.641. P.289-293. DOI: 10.1016/j.susc.2015.04.005 WOS Scopus РИНЦ
Файлы:
Полный текст от издателя
Даты:
Опубликована online: | 11 апр. 2015 г. |
Опубликована в печати: | 1 нояб. 2015 г. |
Идентификаторы БД:
Web of science | WOS:000361408800046 |
Scopus | 2-s2.0-84940462020 |
РИНЦ | 24944673 |
Chemical Abstracts | 2015:692049 |
Chemical Abstracts (print) | 163:331017 |
OpenAlex | W2035229272 |