About: Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites.

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About: Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites. Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Zeolite ZSM-12 with aluminum and iron in the framework was synthesized in a broad range of Si/Al (Fe) ratios using methyltriethylammonium bromide as structure-directing agent with the aim to characterize the type and concentration of acid sites in dependence on Si/Al (Fe) ratios and calcination procedures. It was shown that the minimum Si/Al ratio achieved for (Al)ZSM-12 is around 35, which is very close to minimum Si/Fe ratio of about 37 for (Fe)ZSM-12. The rate of crystallization of (Al) and (Fe)ZSM-12 depends on the concentration of Al and Fe in the reaction mixture of these trivalent cations, the slower was the apparent crystallization rate. It is suggested that the crystallization rate is controlled by the number of nucleation centers, which depends on the amount of trivalent cations (Al, Fe) . Zeolites (Al) and (Fe)ZSM-12 were calcined under a variety of carefully controlled conditions to investigate the resulting concentration of Broensted and Lewis acid sites. Zeolite ZSM-12 with aluminum and iron in the framework was synthesized in a broad range of Si/Al (Fe) ratios using methyltriethylammonium bromide as structure-directing agent with the aim to characterize the type and concentration of acid sites in dependence on Si/Al (Fe) ratios and calcination procedures. It was shown that the minimum Si/Al ratio achieved for (Al)ZSM-12 is around 35, which is very close to minimum Si/Fe ratio of about 37 for (Fe)ZSM-12. The rate of crystallization of (Al) and (Fe)ZSM-12 depends on the concentration of Al and Fe in the reaction mixture of these trivalent cations, the slower was the apparent crystallization rate. It is suggested that the crystallization rate is controlled by the number of nucleation centers, which depends on the amount of trivalent cations (Al, Fe) . Zeolites (Al) and (Fe)ZSM-12 were calcined under a variety of carefully controlled conditions to investigate the resulting concentration of Broensted and Lewis acid sites. (en)
Title	Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites. Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites. (en)
skos:prefLabel	Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites. Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites. (en)
skos:notation	RIV/61388955:_____/02:54020245!RIV/2003/AV0/A54003/N
http://linked.open.../vavai/riv/strany	1760;1778
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA4040001), Z(AV0Z4040901)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Košová, Gabriela Čejka, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	648677
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/02:54020245
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ZSM-12; aluminum; iron (en)
http://linked.open.../riv/klicoveSlovo	aluminum iron ZSM-12
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8DA97F2790E8]
http://linked.open...i/riv/nazevZdroje	Collection of Czechoslovak Chemical Commmunications
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Basic molecular sieves for selective side-chain alkylation of toluene
http://linked.open...UplatneniVysledku	2002
http://linked.open...v/svazekPeriodika	67
http://linked.open...iv/tvurceVysledku	Čejka, Jiří Košová, Gabriela
http://linked.open...n/vavai/riv/zamer	Objasňování zákonitostí vztahů struktury a vlastností - zejména dynamiky a chemické reaktivity - látek a molekulárních systémů
issn	0010-0765
number of pages	18 (xsd:int)

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