About: Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study.

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About: Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The Co(II) ion sites in dehydrated Beta zeolites, consisting of polymorphs A, B and C, were identified using an approach based on a similarity between Vis spectra of the Co(II) ions in mordenite, ferrierite ZSM-5 and beta zeolites, and similarity in local framework structures accommodating the Co(II) ions in these zeolites. The results were supported by FTIR spectra in the region of skeletal vibrations showing the characteristic shifts of framework T-O-T vibrations induced by the framework perturbations due to the Co(II) ions at cationic sites. Three different cationic sites accommodating divalent metal ions in Beta zeolite were found. Their positions in the channel system and local framework arrangements in different polymorphs of Beta zeolites were suggested. The .alfa. site is formed in polymorph C of the Beta structure by an elongated six-member ring composed of two folded connected five-member rings. The Co(II) ions at the .alfa. site exhibit an absorption band. The Co(II) ion sites in dehydrated Beta zeolites, consisting of polymorphs A, B and C, were identified using an approach based on a similarity between Vis spectra of the Co(II) ions in mordenite, ferrierite ZSM-5 and beta zeolites, and similarity in local framework structures accommodating the Co(II) ions in these zeolites. The results were supported by FTIR spectra in the region of skeletal vibrations showing the characteristic shifts of framework T-O-T vibrations induced by the framework perturbations due to the Co(II) ions at cationic sites. Three different cationic sites accommodating divalent metal ions in Beta zeolite were found. Their positions in the channel system and local framework arrangements in different polymorphs of Beta zeolites were suggested. The .alfa. site is formed in polymorph C of the Beta structure by an elongated six-member ring composed of two folded connected five-member rings. The Co(II) ions at the .alfa. site exhibit an absorption band. (en)
Title	Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study. Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study. (en)
skos:prefLabel	Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study. Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study. (en)
skos:notation	RIV/61388955:_____/02:54020094!RIV/2003/AV0/A54003/N
http://linked.open.../vavai/riv/strany	198;207
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/00/0640), P(OC D15.20), Z(AV0Z4040901)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Kaucký, Dalibor Wichterlová, Blanka Sobalík, Zdeněk Čapek, Libor Dědeček, 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	663705
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/02:54020094
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Co-beta; - Co(II) ions; - cation siting (en)
http://linked.open.../riv/klicoveSlovo	- Co(II) ions - cation siting Co-beta
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[8AAE5C2948CA]
http://linked.open...i/riv/nazevZdroje	Journal of Catalysis
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/OC%20D15.20 Ammoximation of ethane to acetonitride. Structure and function of active centres
http://linked.open...UplatneniVysledku	2002
http://linked.open...v/svazekPeriodika	211
http://linked.open...iv/tvurceVysledku	Dědeček, Jiří Sobalík, Zdeněk Wichterlová, Blanka Čapek, Libor Kaucký, Dalibor
http://linked.open...n/vavai/riv/zamer	Objasňování zákonitostí vztahů struktury a vlastností - zejména dynamiky a chemické reaktivity - látek a molekulárních systémů
issn	0021-9517
number of pages	10 (xsd:int)

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