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Single-atom alloy Pd1Ag10/Al2O3 catalyst: effect of CO-induced Pd surface segregation on the structure and catalytic performanceстатья
- Авторы: Markov P.V., Smirnova N.S., Baeva G.N., Mashkovsky I.S., Bukhtiyarov A.V., Chetyrin I.A., Zubavichus Y.V., Stakheev A.Yu
- Журнал: Mendeleev Communications
- Том: 33
- Номер: 6
- Год издания: 2023
- Издательство: Russian Academy of Sciences
- Местоположение издательства: Russian Federation
- Первая страница: 812
- Последняя страница: 814
- DOI: 10.1016/j.mencom.2023.10.024
- Аннотация: The effective surface concentration of Pd1 sites composed of individual palladium atoms isolated from each other by Ag atoms in the Pd1Ag10/Al2O3 single-atom alloy (SAA) catalyst can be significantly enhanced by the adsorption-induced surface segregation upon a special pretreatment of the catalyst in a CO-containing atmosphere at 200 °C. The catalyst activity towards acetylene hydrogenation gets tripled without sacrificing selectivity for ethylene. The segregated surface of the catalyst is thus preserved under target reaction conditions.
- Добавил в систему: Стахеев Александр Юрьевич