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Studies on High-Temperature Evolution of Low-Loaded Pd Three-Way Catalysts Prepared by Laser Electrodispersion Научная публикация

Журнал Materials
ISSN: 1996-1944
Вых. Данные Год: 2023, Том: 16, Номер: 9, Номер статьи : 3501, Страниц : 19 DOI: 10.3390/ma16093501
Ключевые слова laser electrodispersion; palladium nanoparticles; alumina support; three-way catalysts; thermal stability; characterization
Авторы Rostovshchikova Tatiana N. 1 , Shilina Marina I. 1 , Gurevich Sergey A. 2 , Yavsin Denis A. 2 , Veselov Grigory B. 3 , Stoyanovskii Vladimir O. 3 , Vedyagin Aleksey A. 3
Организации
1 Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
2 Ioffe Physico-Technical Institute, Russian Academy of Sciences, 26 Politechnicheskaya Str., 194021 Saint Petersburg, Russia
3 Boreskov Institute of Catalysis, 5 Lavrentyev Avenue, 630090 Novosibirsk, Russia

Информация о финансировании (3)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2021-0010
2 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) АААА-А21-121011590090-7
3 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0040-2019-0010

Реферат: Pd/Al2O3 catalyst of the “crust” type with Pd loading of 0.03 wt.% was prepared by the deposition of 2 nm Pd particles on the outer surface of the alumina support using laser electrodispersion (LED). This technique differs from a standard laser ablation into a liquid in that the formation of monodisperse nanoparticles occurs in the laser torch plasma in a vacuum. As is found, the LED-prepared catalyst surpasses Pd-containing three-way catalysts, obtained by conventional chemical synthesis, in activity and stability in CO oxidation under prompt thermal aging conditions. Thus, the LED-prepared Pd/Al2O3 catalyst showed the best thermal stability up to 1000 °C. The present research is focused on the study of the high-temperature evolution of the Pd/Al2O3 catalyst in two reaction mixtures by a set of physicochemical methods (transmission electron microscopy, X-ray photoelectron spectroscopy, and diffuse reflectance UV-vis spectroscopy). In order to follow the dispersion of the Pd nanoparticles during the thermal aging procedure, the testing reaction of ethane hydrogenolysis was also applied. The possible reasons for the high stability of LED-prepared catalysts are suggested.
Библиографическая ссылка: Rostovshchikova T.N. , Shilina M.I. , Gurevich S.A. , Yavsin D.A. , Veselov G.B. , Stoyanovskii V.O. , Vedyagin A.A.
Studies on High-Temperature Evolution of Low-Loaded Pd Three-Way Catalysts Prepared by Laser Electrodispersion
Materials. 2023. V.16. N9. 3501 :1-19. DOI: 10.3390/ma16093501 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
Поступила в редакцию: 28 мар. 2023 г.
Принята к публикации: 28 апр. 2023 г.
Опубликована в печати: 1 мая 2023 г.
Опубликована online: 1 мая 2023 г.
Идентификаторы БД:
Web of science: WOS:000987290200001
Scopus: 2-s2.0-85159264804
РИНЦ: 54041606
Chemical Abstracts: 2023:1080505
PMID (PubMed): 37176383
OpenAlex: W4367624971
Цитирование в БД:
БД Цитирований
Scopus 2
Web of science 2
РИНЦ 2
OpenAlex 2
Альметрики: