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Effect of La Addition on the Performance of Three-Way Catalysts Containing Palladium and Rhodium Научная публикация

Конференция XI International Conference Mechanisms of Catalytic Reactions
07-11 окт. 2019 , Сочи
Журнал Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028
Вых. Данные Год: 2020, Том: 63, Номер: 1-2, Страницы: 152–165 Страниц : 14 DOI: 10.1007/s11244-019-01213-x
Ключевые слова Three-way catalysts; bimetallic Pd-Rh alloys; La-doped alumina support; metal-support interaction; thermal stability
Авторы Vedyagin Aleksey A. 1 , Kenzhin Roman M. 1 , Tashlanov Mikhail Yu. 1,2 , Alikin Evgeny A. 3 , Stoyanovskii Vladimir O. 1 , Plyusnin Pavel E. 2,4 , Shubin Yury V. 2,4 , Mishakov Ilya V. 1,2 , Smirnov Mikhail Yu. 1 , Kalinkin Alexander V. 1 , Bukhtiyarov Valerii I. 1,2
Организации
1 Boreskov Institute of Catalysis SB RAS
2 National Research Novosibirsk State University
3 Ecoalliance LLC, Novouralsk
4 Nikolaev Institute of Inorganic Chemistry SB RAS

Информация о финансировании (1)

1 Министерство образования и науки Российской Федерации 14.581.21.0028 (RFMEFI58117X0028)

Реферат: Three-way catalysts containing palladium and/or rhodium were prepared using γ­Al2O3 doped with lanthanum oxide as a support. All the samples were obtained by an incipient wetness impregnation of the support with an aqueous solution of nitrates. In order to investigate the metal-support interaction, the support was additionally calcined at 800 °C before the impregnation procedure. Characterization of the support thermally treated within a range of 600-1000 °C by low-temperature nitrogen absorption, X-ray diffraction analysis, and electron paramagnetic resonance spectroscopy has revealed that the treatment conditions strongly affect the textural properties, the phase composition and the concentration of electron-donor sites on the surface of the support. Deposition of metals by the impregnation of initial support with a joint solution of Pd and Rh nitrates has led to formation of small Pd-Rh alloyed nanoparticles with strong metal-metal interaction, which was confirmed by a testing reaction of ethane hydrogenolysis. No alloy formation was observed in the case of mechanical mixing of the separately prepared Pd-only and Rh-only catalysts as well as in the case of preliminary calcined support impregnated with joint solution of Pd and Rh nitrates. Bimetallic Pd-Rh catalyst of alloyed type was shown to be the most promising in terms of catalytic performance and thermal stability.
Библиографическая ссылка: Vedyagin A.A. , Kenzhin R.M. , Tashlanov M.Y. , Alikin E.A. , Stoyanovskii V.O. , Plyusnin P.E. , Shubin Y.V. , Mishakov I.V. , Smirnov M.Y. , Kalinkin A.V. , Bukhtiyarov V.I.
Effect of La Addition on the Performance of Three-Way Catalysts Containing Palladium and Rhodium
Topics in Catalysis. 2020. V.63. N1-2. P.152–165. DOI: 10.1007/s11244-019-01213-x WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Опубликована online: 2 янв. 2020 г.
Опубликована в печати: 1 мар. 2020 г.
Идентификаторы БД:
Web of science: WOS:000505376300002
Scopus: 2-s2.0-85077247301
РИНЦ: 43225699
Chemical Abstracts: 2020:35265
OpenAlex: W2998335992
Цитирование в БД:
БД Цитирований
Scopus 11
Web of science 11
РИНЦ 11
OpenAlex 12
Альметрики: