In situ Formation of the Active Sites in Pd–Au Bimetallic Nanocatalysts for CO Oxidation: NAP (Near Ambient Pressure) XPS and MS Study Научная публикация
| Конференция |
Designing Nanoparticle Systems for Catalysis Faraday Discussion 16-18 мая 2018 , London |
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| Журнал |
Faraday Discussions
ISSN: 1359-6640 , E-ISSN: 1364-5498 |
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| Вых. Данные | Год: 2018, Том: 208, Страницы: 255-268 Страниц : 14 DOI: 10.1039/c7fd00219j | ||||||
| Ключевые слова | SURFACE SEGREGATION; ATMOSPHERIC PRESSURES; CATALYTIC-PROPERTIES; ULTRAHIGH-VACUUM; MODEL CATALYSTS; GOLD; ADSORPTION; NANOPARTICLES; NANOALLOYS; AuPd(100) | ||||||
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 14-23-00146 |
Реферат:
Model bimetallic Pd–Au/HOPG catalysts have been investigated in the CO oxidation reaction using a combination of NAP XPS and MS techniques. The samples have shown catalytic activity at temperatures above 150 °C. The redistribution of Au and Pd on the surface depending on the reaction conditions has been demonstrated using NAP XPS. The Pd enrichment of the bimetallic particles’ surface under reaction gas mixture has been shown. Apparently, CO adsorption induces Pd segregation on the surface. Heating the sample under reaction conditions above 150 °C decomposes the Pd–CO state due to CO desorption and reaction and simultaneous Pd–Au alloy formation on the surface takes place. Cooling back down to RT results in reversible Pd segregation due to Pd–CO formation and the sample becomes inactive. It has been shown that in situ studies are necessary for investigation of the active sites in Pd–Au bimetallic systems.
Библиографическая ссылка:
Bukhtiyarov A.V.
, Prosvirin I.P.
, Saraev A.A.
, Klyushin A.Y.
, Knop-Gericke A.
, Bukhtiyarov V.I.
In situ Formation of the Active Sites in Pd–Au Bimetallic Nanocatalysts for CO Oxidation: NAP (Near Ambient Pressure) XPS and MS Study
Faraday Discussions. 2018.
V.208. P.255-268. DOI: 10.1039/c7fd00219j
WOS
Scopus
РИНЦ
CAPlus
PMID
OpenAlex
In situ Formation of the Active Sites in Pd–Au Bimetallic Nanocatalysts for CO Oxidation: NAP (Near Ambient Pressure) XPS and MS Study
Faraday Discussions. 2018.
V.208. P.255-268. DOI: 10.1039/c7fd00219j
WOS
Scopus
РИНЦ
CAPlus
PMID
OpenAlex
Файлы:
Полный текст от издателя
Даты:
| Поступила в редакцию: | 19 дек. 2017 г. |
| Принята к публикации: | 24 янв. 2018 г. |
| Опубликована online: | 24 янв. 2018 г. |
| Опубликована в печати: | 1 авг. 2018 г. |
Идентификаторы БД:
| Web of science: | WOS:000444554700013 |
| Scopus: | 2-s2.0-85051814440 |
| РИНЦ: | 35738007 |
| Chemical Abstracts: | 2018:156870 |
| PMID (PubMed): | 29877526 |
| OpenAlex: | W2784807209 |