Reductive Dehydration of Ethano1 to Hydrocarbons on Ni- and Au-Containing Nanocomposites Full article
Journal |
Nanotechnologies in Russia
ISSN: 1995-0780 , E-ISSN: 1995-0799 |
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Output data | Year: 2012, Volume: 7, Number: 7-8, Pages: 327-338 Pages count : 12 DOI: 10.1134/S199507801204009X | ||||||
Tags | Nickel Oxide; Gold Cluster; Bimetallic Catalyst; Inorganic Crystal Structure Database; Atomic Radial Distribution | ||||||
Authors |
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Affiliations |
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Funding (5)
1 | Russian Foundation for Basic Research | 11-03-00403 |
2 | Russian Foundation for Basic Research | 12-03-00489 |
3 | Council for Grants of the President of the Russian Federation | МК-107.2011.3 |
4 | Council for Grants of the President of the Russian Federation | МК-1621.2012.3 |
5 | Council for Grants of the President of the Russian Federation | МК-2917.2012.3 |
Abstract:
Monometallic and bimetallic nanocomposites M/Al2O3 (M = NiO, Au, NiO + Au) with metal contents of 0.1–0.65 wt % were prepared by the deposition-precipitation and/or impregnation technique. The surface of the composites was investigated by transmission electron microscopy (TEM), EDX, adsorption spectroscopy (AAS), and XAFS. The features of the M/Al2O3 catalysis of the reductive dehydration of ethanol at 350°C were investigated. The activity of NiO/Al2O3 containing 3.5 nm particles of NiO was 130 h−1. A strong size effect in activity was revealed for Au/Al2O3 nanocomposites with activity increasing from 341 to 1384 h−1 as the size of gold particles decreased from 13–20 to 5 nm. The selectivity of 5-nm particles of Au/Al2O3 to the fraction of C3-C8 hydrocarbons was 11.69 mass %. The growth of M particles due to the segregation of individual metals and/or the formation of mixed (Au + NiO) particles resulted in an increase in the selectivity of C3-C8 up to 34.19 mass %. The causes of the observed catalytic phenomena are discussed considering the reaction mechanisms and the specific structure features of the obtained catalysts.
Cite:
Nikolaev S.A.
, Chudakova M.V.
, Chistyakov A.V.
, Kriventsov V.V.
, Tsodikov M.V.
Reductive Dehydration of Ethano1 to Hydrocarbons on Ni- and Au-Containing Nanocomposites
Nanotechnologies in Russia. 2012. V.7. N7-8. P.327-338. DOI: 10.1134/S199507801204009X Scopus РИНЦ
Reductive Dehydration of Ethano1 to Hydrocarbons on Ni- and Au-Containing Nanocomposites
Nanotechnologies in Russia. 2012. V.7. N7-8. P.327-338. DOI: 10.1134/S199507801204009X Scopus РИНЦ
Original:
Николаев С.А.
, Чудакова М.В.
, Чистяков А.В.
, Кривенцов В.В.
, Цодиков М.В.
Восстановительная дегидратация этанола в углеводороды на Ni- и Au-содержащих нанокомпозитах
Российские нанотехнологии. 2012. Т.7. №7-8. С.21-32. RSCI РИНЦ
Восстановительная дегидратация этанола в углеводороды на Ni- и Au-содержащих нанокомпозитах
Российские нанотехнологии. 2012. Т.7. №7-8. С.21-32. RSCI РИНЦ
Dates:
Submitted: | Jan 20, 2012 |
Accepted: | Mar 28, 2012 |
Published print: | Jul 1, 2012 |
Published online: | Aug 16, 2012 |
Identifiers:
Scopus | 2-s2.0-84865530654 |
Elibrary | 20472089 |
OpenAlex | W1967239320 |