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CO Preferential Oxidation on Pt0.5Co0.5 and Pt-CoOx Model Catalysts: Catalytic Performance and Operando XRD Studies Научная публикация

Журнал Catalysis Communications
ISSN: 1566-7367
Вых. Данные Год: 2017, Том: 100, Страницы: 232-236 Страниц : 5 DOI: 10.1016/j.catcom.2017.07.008
Авторы Potemkin D.I. 1,2 , Filatov E.Yu. 1,3 , Zadesenets A.V. 1,3 , Sobyanin V.A. 2
Организации
1 Novosibirsk State University, Pirogova St., 2, Novosibirsk 630090, Russia
2 Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, Novosibirsk 630090, Russia
3 Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva, 3, Novosibirsk 630090, Russia
Реферат: Nanopowders of unordered solid solution Pt0.5Co0.5 and metal-oxide composite Pt-CoOx were prepared via double complex salt [Pt(NH3)4][Co(C2O4)2(H2O)2]·2H2O decomposition in He and air streams, respectively. It was shown that, compared to metallic Pt nanopowder, both Pt0.5Co0.5 and Pt-CoOx exhibited high CO preferential oxidation (CO PROX) performance under mild conditions and provided complete CO conversion with 50–100% selectivity at near-ambient temperature and WHSV of 80,000 cm3 g− 1 h− 1. Operando XRD study revealed that under CO PROX conditions Pt0.5Co0.5 was stable, while Pt-CoOx underwent reduction even at 50 °C and consisted of Pt and Co nanoparticles. The high performance of both (alloyed and not alloyed) Pt-Co bimetallic systems exhibits the key role of Pt-Co interface, i.e. the so-called “ensemble effect”, in the synergism.
Библиографическая ссылка: Potemkin D.I. , Filatov E.Y. , Zadesenets A.V. , Sobyanin V.A.
CO Preferential Oxidation on Pt0.5Co0.5 and Pt-CoOx Model Catalysts: Catalytic Performance and Operando XRD Studies
Catalysis Communications. 2017. V.100. P.232-236. DOI: 10.1016/j.catcom.2017.07.008 WOS Scopus РИНЦ CAPlus OpenAlex Sciact
Даты:
Поступила в редакцию: 6 июн. 2017 г.
Принята к публикации: 11 июл. 2017 г.
Опубликована online: 12 июл. 2017 г.
Опубликована в печати: 1 сент. 2017 г.
Идентификаторы БД:
Web of science: WOS:000407982700050
Scopus: 2-s2.0-85024132523
РИНЦ: 31063961
Chemical Abstracts: 2017:1203214
OpenAlex: W2735825421
Sciact: 22108
Цитирование в БД:
БД Цитирований
Scopus 30
OpenAlex 32
Альметрики: