New Approaches to the Synthesis of Ultralow-Palladium Automotive Emission Control Catalysts Full article
| Journal |
Doklady Physical Chemistry
ISSN: 0012-5016 , E-ISSN: 1608-3121 |
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| Output data | Year: 2022, Volume: 506, Number: 1, Pages: 123-130 Pages count : 8 DOI: 10.1134/S001250162260019X | ||||||
| Tags | synthesis of catalysts, palladium nanoparticles, alumina, HZSM-5 zeolite, oxidation of carbon monoxide, thermal stability | ||||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0040-2019-0010 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0010 |
| 3 | Ministry of Science and Higher Education of the Russian Federation | АААА-А21-121011590090-7 |
Abstract:
Laser electrodispersion has been used as an alternative to the chemical synthesis of palladium-containing catalysts. The thus produced catalysts supported on alumina and HZSM-5 zeolite have high catalytic activity and stability at ultralow palladium content (0.03 wt %) in a model reaction of CO oxidation under conditions of prompt thermal aging. According to X-ray photoelectron spectroscopy and transmission electron microscopy data, palladium in the catalyst samples predominantly occurs in the Pd0 state as fine particles about 2.0 nm in size, which almost completely cover the support surface. The textural characteristics of both supports are retained after the deposition of palladium. The modification of zeolite with palladium increases the adsorption capacity for hydrocarbons, which gives rise to a sorption effect in the temperature dependences of the CO conversion. The palladium-containing alumina-based catalyst demonstrated the best stability during heat treatment up to 1000°C.
Cite:
Rostovshchikova T.N.
, Shilina M.I.
, Gurevich S.A.
, Yavsin D.A.
, Veselov G.B.
, Vedyagin A.A.
New Approaches to the Synthesis of Ultralow-Palladium Automotive Emission Control Catalysts
Doklady Physical Chemistry. 2022. V.506. N1. P.123-130. DOI: 10.1134/S001250162260019X WOS Scopus РИНЦ ANCAN OpenAlex
New Approaches to the Synthesis of Ultralow-Palladium Automotive Emission Control Catalysts
Doklady Physical Chemistry. 2022. V.506. N1. P.123-130. DOI: 10.1134/S001250162260019X WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Ростовщикова Т.Н.
, Шилина М.И.
, Гуревич С.А.
, Явсин Д.А.
, Веселов Г.Б.
, Ведягин А.А.
Новые подходы к синтезу катализаторов с пониженным содержанием палладия для нейтрализации отходящих газов автотранспорта
Доклады Российской академии наук. Химия, науки о материалах (Доклады Академии наук до 2019 года). 2022. Т.506. С.48-56. DOI: 10.31857/S2686953522600313 РИНЦ OpenAlex
Новые подходы к синтезу катализаторов с пониженным содержанием палладия для нейтрализации отходящих газов автотранспорта
Доклады Российской академии наук. Химия, науки о материалах (Доклады Академии наук до 2019 года). 2022. Т.506. С.48-56. DOI: 10.31857/S2686953522600313 РИНЦ OpenAlex
Dates:
| Submitted: | Jun 14, 2022 |
| Accepted: | Aug 3, 2022 |
Identifiers:
| Web of science: | WOS:000935889100001 |
| Scopus: | 2-s2.0-85148757144 |
| Elibrary: | 50768281 |
| Chemical Abstracts: | 2023:357213 |
| Chemical Abstracts (print): | 182:77749 |
| OpenAlex: | W4321383709 |