Adsorption properties of aluminium oxide modified with palladium, gold, and cerium oxide nanoparticles
- Authors: Lanin S.N.1, Bannykh A.A.1, Vinogradov A.E.1, Kovaleva N.V.1, Lanina K.S.1, Nikolaev S.A.1
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Affiliations:
- Department of Chemistry
- Issue: Vol 90, No 7 (2016)
- Pages: 1427-1433
- Section: Physical Chemistry of Nanoclusters and Nanomaterials
- URL: https://journals.rcsi.science/0036-0244/article/view/168477
- DOI: https://doi.org/10.1134/S0036024416070177
- ID: 168477
Cite item
Abstract
The adsorption properties of nanocomposites based on γ-Al2O3 modified with CeOx, Au/CeOx, and Pd/CeOx nanoparticles with contents of deposited metals ranging from 0.07 to 1.71 wt % are investigated by means of dynamic sorption method. n-Alkanes (C6–C8), acetonitrile, diethyl ether, tetrahydrofuran, and dioxane are used as test adsorbates. Adsorption isotherms are measured, and the isosteric heats of adsorption of a number of test adsorbates are calculated. Electron-donor and electron-acceptor characteristics of the surfaces of γ-Al2O3-based nanocomposites are estimated. It is shown that Au(0.1%)/CeOx(0.07%)/γ-Al2O3 nanocomposite, which has the lowest content of nanoparticles of the deposited metals, has the highest adsorption activity.
About the authors
S. N. Lanin
Department of Chemistry
Author for correspondence.
Email: SNLanin@phys.chem.msu.ru
Russian Federation, Moscow, 119991
A. A. Bannykh
Department of Chemistry
Email: SNLanin@phys.chem.msu.ru
Russian Federation, Moscow, 119991
A. E. Vinogradov
Department of Chemistry
Email: SNLanin@phys.chem.msu.ru
Russian Federation, Moscow, 119991
N. V. Kovaleva
Department of Chemistry
Email: SNLanin@phys.chem.msu.ru
Russian Federation, Moscow, 119991
K. S. Lanina
Department of Chemistry
Email: SNLanin@phys.chem.msu.ru
Russian Federation, Moscow, 119991
S. A. Nikolaev
Department of Chemistry
Email: SNLanin@phys.chem.msu.ru
Russian Federation, Moscow, 119991