CO Preferential Oxidation on Pt0.5Co0.5 and Pt-CoOx Model Catalysts: Catalytic Performance and Operando XRD Studies Full article
| Journal |
Catalysis Communications
ISSN: 1566-7367 , E-ISSN: 1873-3905 |
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| Output data | Year: 2017, Volume: 100, Pages: 232-236 Pages count : 5 DOI: 10.1016/j.catcom.2017.07.008 | ||||||
| Tags | Bimetallic catalysts, CO cleanup, Hydrogen-rich gas, Platinum-cobalt, Preferential CO oxidation, Pt-Co catalysts | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 16-33-60106 |
| 2 | Russian Foundation for Basic Research | 17-03-00950 |
Abstract:
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.
Cite:
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 AN OpenAlex
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 AN OpenAlex
Dates:
| Submitted: | Jun 6, 2017 |
| Accepted: | Jul 11, 2017 |
| Published online: | Jul 12, 2017 |
| Published print: | Sep 1, 2017 |
Identifiers:
| Web of science: | WOS:000407982700050 |
| Scopus: | 2-s2.0-85024132523 |
| Elibrary: | 31063961 |
| Chemical Abstracts: | 2017:1203214 |
| OpenAlex: | W2735825421 |