Bimetallic Au-Cu/CeO2 Сatalyst: Synthesis, Structure, and Catalytic Properties in the CO Preferential Oxidation Full article
| Journal |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2014, Volume: 6, Number: 1, Pages: 36-43 Pages count : 8 DOI: 10.1134/S2070050414010073 | ||||||
| Tags | Au-Cu catalysts, Bimetallic catalysts, Catalyst preparation, CO removal, Double complex salts, Gold-copper catalysts, Hydrogen generation, Preferential oxidation of CO | ||||||
| Authors |
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| Affiliations |
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Funding (4)
| 1 | Russian Foundation for Basic Research | 11-03-00668 |
| 2 | Siberian Branch of the Russian Academy of Sciences | 124 |
| 3 | The Ministry of Education and Science of the Russian Federation | 11.519.11.3021 |
| 4 | The Ministry of Education and Science of the Russian Federation | 14.132.21.1456 |
Abstract:
The preparation of bimetallic Au-Cu catalysts via the decomposition of the double complex salt [Au(en)2]2[Cu(C2O4)2]3 · 8H2O is considered. It is found that this method of preparation allows us to selectively obtain Au0.4Cu0.6 solid solution nanoparticles on the surface of a support. The composition of the particles corresponds to the stoichiometry of the double complex salt. The properties of bimetallic Au-Cu/CeO2 catalyst and monometallic Au/CeO2 and Cu/CeO2 catalysts were studied during the preferential oxidation of CO in a mixture containing CO2 and H2O. The experiments were performed in a catalytic flow system within a temperature range of 50–250°C with a mixture of the following composition, vol %: CO, 1; O2, 0.6; H2O, 10; CO2, 20; H2, 60; and the balance, He. The weight hourly space velocity (WHSV) was 276000 cm3/(g h). The bimetallic catalyst made it possible to oxidize a considerably larger amount of CO with higher selectivity with CO2 and H2O in the mixture, relative to the monometallic catalysts. The preferential oxidation of carbon monoxide in the presence of hydrogen is a promising method for the deep purification of hydrogen-containing gas mixtures in order to remove carbon monoxide. The purified hydrogen-containing gas can be used to feed portable power units based on low-temperature proton-exchange membrane fuel cells, for the synthesis of ammonia, and for hydrogenation in fine organic synthesis.
Cite:
Potemkin D.I.
, Snytnikov P.V.
, Semitut E.Y.
, Plyusnin P.E.
, Shubin Y.V.
, Sobyanin V.A.
Bimetallic Au-Cu/CeO2 Сatalyst: Synthesis, Structure, and Catalytic Properties in the CO Preferential Oxidation
Catalysis in Industry. 2014. V.6. N1. P.36-43. DOI: 10.1134/S2070050414010073 WOS Scopus РИНЦ OpenAlex
Bimetallic Au-Cu/CeO2 Сatalyst: Synthesis, Structure, and Catalytic Properties in the CO Preferential Oxidation
Catalysis in Industry. 2014. V.6. N1. P.36-43. DOI: 10.1134/S2070050414010073 WOS Scopus РИНЦ OpenAlex
Original:
Потемкин Д.И.
, Снытников П.В.
, Семитут Е.Ю.
, Плюснин П.Е.
, Шубин Ю.В.
, Собянин В.А.
Биметаллический Au-Cu/CeO2 катализатор: синтез, структура и каталитические свойства в избирательном окислении СО
Катализ в промышленности. 2013. №5. С.45-53. РИНЦ ANCAN
Биметаллический Au-Cu/CeO2 катализатор: синтез, структура и каталитические свойства в избирательном окислении СО
Катализ в промышленности. 2013. №5. С.45-53. РИНЦ ANCAN
Dates:
| Submitted: | Jun 18, 2013 |
| Published print: | Jan 1, 2014 |
| Published online: | Apr 5, 2014 |
Identifiers:
| Web of science: | WOS:000433669200006 |
| Scopus: | 2-s2.0-84899066916 |
| Elibrary: | 21873462 |
| OpenAlex: | W2063639807 |