Nanosized Au/C Catalyst Obtained from a Tetraamminegold(III) Precursor: Synthesis, Characterization, and Catalytic Activity in LowTemperature CO Oxidation Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2010, Volume: 51, Number: 6, Pages: 885-892 Pages count : 8 DOI: 10.1134/S0023158410060145 | ||
| Tags | LIQUID-PHASE OXIDATION; GOLD COMPLEXES; CARBON; TETRAMMINEGOLD(III); NANOPARTICLES; GOLD(III) | ||
| Authors |
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| Affiliations |
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Funding (5)
| 1 | Russian Foundation for Basic Research | 08-03-00823 |
| 2 | Russian Foundation for Basic Research | 09-03-12272 |
| 3 | European Commission | 32175 FP6-2004-NMP-TI-4 FCANODE |
| 4 | The Ministry of Education and Science of the Russian Federation | 02.740.11.5084 |
| 5 | Фонд содействия развитию малых форм предприятий в научно-технической сфере | 7389r/10166 |
Abstract:
A method in which the water-soluble complex [Au(NH3)4](NO3)3 is used as the active-component precursor is suggested for preparing nanosized Au/C catalysts (C = Sibunit, a mesoporous carbon material). The complex is unreadily reducible by the carbon matrix and can be involved in cation exchange with proton-containing groups of the support. This method is referred to as cationic adsorption. It has been demonstrated by X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy that the catalyst prepared in this way and treated with H2 at 400°C contains size-uniform gold metal particles with a dominant diameter of <5 nm. The greater part of the gold particles is located on the outer surface of the Sibunit granules; that is, an egg shell type distribution of the active component takes place. The catalyst containing 1.3 wt % Au shows high activity in CO oxidation with excess humid air at 40°C. In this respect, it is far superior to the Au/C catalysts prepared by conventional methods (deposition-precipitation and impregnation), in which the typical gold particle size is several tens of nanometers.
Cite:
Pyryaev P.A.
, Moroz B.L.
, Zyuzin D.A.
, Nartova A.V.
, Bukhtiyarov V.I.
Nanosized Au/C Catalyst Obtained from a Tetraamminegold(III) Precursor: Synthesis, Characterization, and Catalytic Activity in LowTemperature CO Oxidation
Kinetics and Catalysis. 2010. V.51. N6. P.885-892. DOI: 10.1134/S0023158410060145 WOS Scopus РИНЦ ANCAN OpenAlex
Nanosized Au/C Catalyst Obtained from a Tetraamminegold(III) Precursor: Synthesis, Characterization, and Catalytic Activity in LowTemperature CO Oxidation
Kinetics and Catalysis. 2010. V.51. N6. P.885-892. DOI: 10.1134/S0023158410060145 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Пыряев П.А.
, Мороз Б.Л.
, Зюзин Д.А.
, Нартова А.В.
, Бухтияров В.И.
Наноразмерный катализатор Au/C, полученный с использованием комплекса тетраамминзолота (III): синтез, исследование, каталитическая активность в низкотемпературном окислении СО
Кинетика и катализ. 2010. Т.51. №6. С.914-922. РИНЦ
Наноразмерный катализатор Au/C, полученный с использованием комплекса тетраамминзолота (III): синтез, исследование, каталитическая активность в низкотемпературном окислении СО
Кинетика и катализ. 2010. Т.51. №6. С.914-922. РИНЦ
Dates:
| Submitted: | Feb 12, 2010 |
| Published print: | Dec 1, 2010 |
| Published online: | Dec 16, 2010 |
Identifiers:
| Web of science: | WOS:000285363900014 |
| Scopus: | 2-s2.0-78650791097 |
| Elibrary: | 16679897 |
| Chemical Abstracts: | 2010:1565825 |
| Chemical Abstracts (print): | 156:268955 |
| OpenAlex: | W2076998845 |