Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/55188

TitleY zeolite-supported niobium pentoxide catalysts for the glycerol acetalization reaction
Author(s)Ferreira, C.
Araujo, A.
Calvino-Casilda, V.
Cutrufello, M. G.
Rombi, E.
Fonseca, António
Bañares, M. A.
Neves, Isabel C.
KeywordsFaujasite zeolite
Nb(V) oxide
Impregnation method
Hydrophobicity
Glycerol acetalization
Issue date15-Nov-2018
PublisherElsevier
JournalMicroporous and Mesoporous Materials
CitationFerreira, C.; Araujo, A.; Calvino-Casilda, V.; Cutrufello, M. G.; Rombi, E.; Fonseca, António; Bañares, M. A.; Neves, Isabel C., Y zeolite-supported niobium pentoxide catalysts for the glycerol acetalization reaction. Microporous and Mesoporous Materials, 271, 243-251, 2018
Abstract(s)Faujasite zeolite-supported niobium-based catalysts (with Nb2O5 amounts of 5 and 15wt%) were prepared by impregnation of NaY, HY, and HUSY zeolites using a niobum(V) ammonium oxalate complex. These obtained Nb-containing catalysts were calcined and thoroughly characterized by different physico-chemical techniques. The characterization results revealed that niobium oxide was successfully loaded on the surface of the zeolite supports without any significant modification of the faujasite structure. Surface area and pore volume were found to decrease with the increase in the Nb content for all the prepared catalysts. The presence of Nb was proved to increase the hydrophobicity of the zeolites and to affect surface acidity. The catalytic activity of the Nb-containing samples was evaluated in the glycerol acetalization reaction, and the Nb-HUSY catalysts were found to show the best catalytic performance.
TypeArticle
DescriptionSupplementary data related to this article can be found at http://dx. doi.org/10.1016/j.micromeso.2018.06.010.
URIhttp://hdl.handle.net/1822/55188
DOI10.1016/j.micromeso.2018.06.010
ISSN1387-1811
Publisher versionhttps://www.journals.elsevier.com/microporous-and-mesoporous-materials
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series
CDQuim - Artigos (Papers)

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