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Synthesis of Pd−Rh Bimetallic Nanoparticles with Different Morphologies in Reverse Micelles and Characterization of Their Catalytic Propertiesстатья Исследовательская статья Перевод
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 мая 2020 г.
- Авторы: Sergeev M.O., Revina A.A., Boeva O.A., Zhavoronkova K.N., Zlotarevskii V.I.
- Журнал: Protection of Metals and Physical Chemistry of Surfaces
- Том: 56
- Номер: 1
- Год издания: 2020
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 63
- Последняя страница: 74
- DOI: 10.1134/S2070205120010207
- Аннотация: Abstract—Synthesis of bimetallic nanoparticles (NPs) of the transition metals Rh and Pd in H2O/AOT/isooctane (where AOT is dioctyl sodium sulfosuccinate) reverse-micelle solutions (RMSs) in the presence of molecular oxygen and quercetin, a flavonoid, is described. The methods for NP synthesis used here enable us to prepare alloyed-type Rh−Pd NPs and core/shell Pd/Rh and Rh/Pd NPs with the metal molar ratio of 1 : 1. With both Rh3+ and Pd2+ ions present in an RMS simultaneously, palladium ions are reduced first, and the formed Pd NPs have an inhibitive effect on reduction of rhodium ions. The stability of a mixture of Rh and Pd NPs in RMSs is investigated, and the mixture of NPs with a mean diameter of ~2.7 nm is found to be stable for at least 25 days. Pd and Rh NP-based catalysts are prepared by absorption of the synthesized NPs on γ-Al2O3, and their catalytic activity is tested in the monomolecular hydrogen isotope exchange reaction. A synergetic effect, manifested as an enhanced catalytic activity, is observed for the catalyst prepared by adsorption of the mixture of Rh and Pd NPs on γ-Al2O3.
- Добавил в систему: Сергеев Михаил Олегович