Title
SBA-15 mesoporous silica modified with rhodium by MDD method and its catalytic role for N2O decomposition reaction
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Boston, Mass. :Kluwer Academic ,
Subject
Chemistry
Source (journal)
Journal of porous materials. - Boston, Mass.
Volume/pages
18(2011) :4 , p. 483-491
ISSN
1380-2224
ISI
000294571300011
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
SBA-15 mesoporous silicas modified with rhodium were studied as catalysts for the N2O decomposition reaction. Rhodium was deposited on SBA-15 by the Molecular Designed Dispersion (MDD) method using Rh(acac)3 as a precursor of active phase. The same method was used for the deposition of Cu, Fe, Al and Ti. The SBA-15 support modified with metals were characterized with respect to metal loading (EPMA), structure (XRD), texture (BET), morphology (SEM), Rh dispersion (oxygen chemisorption), surface acidity (pyridine adsorption) and chemical nature of introduced copper and iron species (UVvis-DRS). The rhodium-containing SBA-15 samples were found to be active catalysts for the N2O decomposition reaction. Deposition of Al on the Rh-loaded catalyst increased its activity. An opposite effect was observed for the samples modified with Cu and Fe.
E-info
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