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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F12%3A10120340%21RIV13-GA0-11310___
rdf:type
n9:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1039/c2cp23237e
dcterms:description
Gas adsorption on zeolites constitutes the base of many technological applications of these versatile porous materials. Quite often, especially when dealing with small molecules, individual extra-framework (exchangeable) cations are considered to be the adsorption site on which molecules coming from a gas phase form the corresponding adsorption complex. Nonetheless, while that can be the case in some instances, recent research work that combines variable temperature infrared spectroscopy with periodic DFT calculations showed that some types of adsorption sites involve two or more cations, which constitute dual and multiple cation sites, respectively. Adsorption complexes formed on these cationic adsorption sites differ in both structure and stability from those formed on a single cation alone. Examples concerning CO, CO2 and H-2 adsorption on alkali and alkaline-earth metal exchanged zeolites are reviewed, with the double purpose of clarifying concepts and highlighting their relevance to practical use of zeolites in such fields as gas separation and purification, gas storage and heterogeneous catalysis. Gas adsorption on zeolites constitutes the base of many technological applications of these versatile porous materials. Quite often, especially when dealing with small molecules, individual extra-framework (exchangeable) cations are considered to be the adsorption site on which molecules coming from a gas phase form the corresponding adsorption complex. Nonetheless, while that can be the case in some instances, recent research work that combines variable temperature infrared spectroscopy with periodic DFT calculations showed that some types of adsorption sites involve two or more cations, which constitute dual and multiple cation sites, respectively. Adsorption complexes formed on these cationic adsorption sites differ in both structure and stability from those formed on a single cation alone. Examples concerning CO, CO2 and H-2 adsorption on alkali and alkaline-earth metal exchanged zeolites are reviewed, with the double purpose of clarifying concepts and highlighting their relevance to practical use of zeolites in such fields as gas separation and purification, gas storage and heterogeneous catalysis.
dcterms:title
The nature of cationic adsorption sites in alkaline zeolites-single, dual and multiple cation sites The nature of cationic adsorption sites in alkaline zeolites-single, dual and multiple cation sites
skos:prefLabel
The nature of cationic adsorption sites in alkaline zeolites-single, dual and multiple cation sites The nature of cationic adsorption sites in alkaline zeolites-single, dual and multiple cation sites
skos:notation
RIV/00216208:11310/12:10120340!RIV13-GA0-11310___
n9:predkladatel
n22:orjk%3A11310
n3:aktivita
n4:I n4:P n4:Z
n3:aktivity
I, P(GA203/09/0143), Z(AV0Z40550506), Z(MSM0021620857)
n3:cisloPeriodika
5
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n5:1747681
n3:druhVysledku
n21:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
153216
n3:idVysledku
RIV/00216208:11310/12:10120340
n3:jazykVysledku
n15:eng
n3:klicovaSlova
high-silica zeolites; solid-state NMR; low-temperature CO; carbon-monoxide adsorption; exchanged ZSM-5 zeolites
n3:klicoveSlovo
n6:carbon-monoxide%20adsorption n6:high-silica%20zeolites n6:solid-state%20NMR n6:exchanged%20ZSM-5%20zeolites n6:low-temperature%20CO
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[E7C3A9E324E6]
n3:nazevZdroje
Physical Chemistry Chemical Physics
n3:obor
n10:CF
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n12:GA203%2F09%2F0143
n3:rokUplatneniVysledku
n14:2012
n3:svazekPeriodika
14
n3:tvurceVysledku
Nachtigall, Petr Delgado, M. R. Arean, CO Nachtigallová, Dana
n3:wos
000299113000001
n3:zamer
n8:MSM0021620857 n8:AV0Z40550506
s:issn
1463-9076
s:numberOfPages
18
n16:doi
10.1039/c2cp23237e
n19:organizacniJednotka
11310