This HTML5 document contains 49 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n9http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n5http://linked.opendata.cz/resource/domain/vavai/projekt/
n16http://linked.opendata.cz/ontology/domain/vavai/
n7http://linked.opendata.cz/resource/domain/vavai/zamer/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n4http://linked.opendata.cz/ontology/domain/vavai/riv/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n8http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n11http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n17http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n12http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n15http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n18http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F61388955%3A_____%2F03%3A54030154%21RIV%2F2004%2FAV0%2FA54004%2FN/
n6http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n14http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F03%3A54030154%21RIV%2F2004%2FAV0%2FA54004%2FN
rdf:type
n16:Vysledek skos:Concept
dcterms:description
The effect of the framework Al content and synthesis procedure on the number of framework Al atoms located on the surface of (Al)MCM-41 channels and the distribution of the Al atoms between single Al atoms and various Al-O-(Si-O)1,2-Al species was investigated. The total number of accessible framework Al atoms on the channel surface was obtained from the ion exchange capacity for Na+ ions and pyridine adsorption. The number of Al pairs on the surface and their distribution between different local arrangements of the channel surface was estimated using Vis spectroscopy of Co2+ ions. At low framework Al contents, Al atoms occupy only accessible T sites on the surface of the channel walls. In aluminium-rich (Al)MCM-41, a significant part of Al atoms is incorporated inside the channel walls and these Al atoms do not form cationic sites. Al atoms on the wall surface preferentially form Al-O-(Si-O)1,2-Al sequences, enabling siting of divalent cations. The effect of the framework Al content and synthesis procedure on the number of framework Al atoms located on the surface of (Al)MCM-41 channels and the distribution of the Al atoms between single Al atoms and various Al-O-(Si-O)1,2-Al species was investigated. The total number of accessible framework Al atoms on the channel surface was obtained from the ion exchange capacity for Na+ ions and pyridine adsorption. The number of Al pairs on the surface and their distribution between different local arrangements of the channel surface was estimated using Vis spectroscopy of Co2+ ions. At low framework Al contents, Al atoms occupy only accessible T sites on the surface of the channel walls. In aluminium-rich (Al)MCM-41, a significant part of Al atoms is incorporated inside the channel walls and these Al atoms do not form cationic sites. Al atoms on the wall surface preferentially form Al-O-(Si-O)1,2-Al sequences, enabling siting of divalent cations.
dcterms:title
(Al)MCM-41 Molecular Sieves. Aluminium Distribution, Uniformity and Structure of Inner Surface. (Al)MCM-41 Molecular Sieves. Aluminium Distribution, Uniformity and Structure of Inner Surface.
skos:prefLabel
(Al)MCM-41 Molecular Sieves. Aluminium Distribution, Uniformity and Structure of Inner Surface. (Al)MCM-41 Molecular Sieves. Aluminium Distribution, Uniformity and Structure of Inner Surface.
skos:notation
RIV/61388955:_____/03:54030154!RIV/2004/AV0/A54004/N
n4:strany
1998;2018
n4:aktivita
n12:Z n12:P
n4:aktivity
P(GA104/02/0571), P(IAA4040001), P(IBS4040017), Z(AV0Z4040901)
n4:cisloPeriodika
10
n4:dodaniDat
n14:2004
n4:domaciTvurceVysledku
n9:7016662 n9:9628983 n9:6309585 n9:6503284
n4:druhVysledku
n15:J
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n18:predkladatel
n4:idSjednocenehoVysledku
597812
n4:idVysledku
RIV/61388955:_____/03:54030154
n4:jazykVysledku
n17:eng
n4:klicovaSlova
molecular sieves; mesoporous materials; Vis spectroscopy
n4:klicoveSlovo
n8:mesoporous%20materials n8:molecular%20sieves n8:Vis%20spectroscopy
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[8411EA2468BC]
n4:nazevZdroje
Collection of Czechoslovak Chemical Communications
n4:obor
n6:CF
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
4
n4:pocetUcastnikuAkce
0
n4:pocetZahranicnichUcastnikuAkce
0
n4:projekt
n5:IAA4040001 n5:IBS4040017 n5:GA104%2F02%2F0571
n4:rokUplatneniVysledku
n14:2003
n4:svazekPeriodika
68
n4:tvurceVysledku
Žilková, Naděžda Kotrla, Josef Dědeček, Jiří Čejka, Jiří
n4:zamer
n7:AV0Z4040901
s:issn
0010-0765
s:numberOfPages
21