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Statements

Subject Item
n2:RIV%2F61388963%3A_____%2F06%3A00043532%21RIV07-AV0-61388963
rdf:type
n8:Vysledek skos:Concept
dcterms:description
The interaction between molecular hydrogen and the alkali-metal-exchanged zeolites Na-FER and K-FER at a low temperature was investigated by combining variable-temperature infrared spectroscopy and theoretical calculations using a periodic DFT model. The adsorption enthalpies of H2 on alkali-metal exchanged FER are significantly smaller than those found previously for the MFI-type zeolites Na-ZSM-5 and K-ZSM-5; which is likely due to a difference in the alkali-metal-cation coordination in the two zeolite frameworks. The interaction between molecular hydrogen and the alkali-metal-exchanged zeolites Na-FER and K-FER at a low temperature was investigated by combining variable-temperature infrared spectroscopy and theoretical calculations using a periodic DFT model. The adsorption enthalpies of H2 on alkali-metal exchanged FER are significantly smaller than those found previously for the MFI-type zeolites Na-ZSM-5 and K-ZSM-5; which is likely due to a difference in the alkali-metal-cation coordination in the two zeolite frameworks. Interakce molekulárního vodíku s mimomřížkovými kationty alkalických kovů v zeolitech Na-FER a K-FER byla studována za nízkých teplot pomocí VTIR spektroskopie v kombinaci s výpočty provedenými s periodickým DFT modelem. Nalezené adsorbční enthalpie H2 na alkalických centrech ve FER jsou výrazně menší než enthalpie nalezené pro zeolity Na-ZSM-5 a K-ZSM-5. Rozdílné enthlapie jsou způsobeny rozdíly v koordinaci alkalických kationtů v zeolitech FER a ZSM-5.
dcterms:title
Combinovaná teoretická a FTIR studie adsorbce H2 na zeolitech Na-FER a K-FER Combined theoretical and FTIR spectroscopic studies on hydrogen adsorption on the zeolites Na-FER and K-FER Combined theoretical and FTIR spectroscopic studies on hydrogen adsorption on the zeolites Na-FER and K-FER
skos:prefLabel
Combinovaná teoretická a FTIR studie adsorbce H2 na zeolitech Na-FER a K-FER Combined theoretical and FTIR spectroscopic studies on hydrogen adsorption on the zeolites Na-FER and K-FER Combined theoretical and FTIR spectroscopic studies on hydrogen adsorption on the zeolites Na-FER and K-FER
skos:notation
RIV/61388963:_____/06:00043532!RIV07-AV0-61388963
n4:strany
395;402
n4:aktivita
n9:Z n9:P
n4:aktivity
P(LC512), Z(AV0Z40550506)
n4:cisloPeriodika
1
n4:dodaniDat
n11:2007
n4:domaciTvurceVysledku
n10:1747681 n10:9831339
n4:druhVysledku
n18:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
469111
n4:idVysledku
RIV/61388963:_____/06:00043532
n4:jazykVysledku
n12:eng
n4:klicovaSlova
adsorption; hydrogen storage; spectroscopy
n4:klicoveSlovo
n15:spectroscopy n15:adsorption n15:hydrogen%20storage
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[36345F6D4C58]
n4:nazevZdroje
Journal of Physical Chemistry B
n4:obor
n13:CF
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
5
n4:projekt
n17:LC512
n4:rokUplatneniVysledku
n11:2006
n4:svazekPeriodika
110
n4:tvurceVysledku
Nachtigall, Petr Nachtigallová, Dana Garrone, E. Palomino, G. T. Areán, C. O.
n4:zamer
n16:AV0Z40550506
s:issn
1520-6106
s:numberOfPages
8