Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 173-182 |
Seitenumfang | 10 |
Fachzeitschrift | Journal of molecular liquids |
Jahrgang | 86 |
Ausgabenummer | 1 |
Publikationsstatus | Veröffentlicht - Juni 2000 |
Veranstaltung | The Polish-Israeli-German Symposium 'Dynamical Processes in Condensed Molecular Systems' - Cracow, Pol Dauer: 19 Juni 1999 → 23 Juni 1999 |
Abstract
Broadband dielectric spectroscopy (10-2Hz-109Hz) is employed to study the molecular dynamics of the simple glassforming liquid ethylene glycol (EG) being confined to zeolites of varying size and topology. A sharp transition is observed from a single-molecule dynamics (with an Arrhenius-type temperature dependence) to that of a liquid (with a temperature dependence of the mean relaxation rate according to a Vogel-Fulcher-Tammann-law (VFT-law)): While EG in silicalite and H-ZSM-5 (showing a single-molecule relaxation) has a coordination number of four, EG in zeolite beta or AlPO4-5 has a coordination number of five and behaves like a bulk liquid.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Chemie (insg.)
- Spektroskopie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: Journal of molecular liquids, Jahrgang 86, Nr. 1, 06.2000, S. 173-182.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Molecular dynamics in zeolitic host systems
AU - Huwe, A.
AU - Kremer, F.
AU - Kärger, J.
AU - Behrens, Peter
AU - Schwieger, W.
AU - Ihlein, G.
AU - Weiß, Ö
AU - Schüth, F.
PY - 2000/6
Y1 - 2000/6
N2 - Broadband dielectric spectroscopy (10-2Hz-109Hz) is employed to study the molecular dynamics of the simple glassforming liquid ethylene glycol (EG) being confined to zeolites of varying size and topology. A sharp transition is observed from a single-molecule dynamics (with an Arrhenius-type temperature dependence) to that of a liquid (with a temperature dependence of the mean relaxation rate according to a Vogel-Fulcher-Tammann-law (VFT-law)): While EG in silicalite and H-ZSM-5 (showing a single-molecule relaxation) has a coordination number of four, EG in zeolite beta or AlPO4-5 has a coordination number of five and behaves like a bulk liquid.
AB - Broadband dielectric spectroscopy (10-2Hz-109Hz) is employed to study the molecular dynamics of the simple glassforming liquid ethylene glycol (EG) being confined to zeolites of varying size and topology. A sharp transition is observed from a single-molecule dynamics (with an Arrhenius-type temperature dependence) to that of a liquid (with a temperature dependence of the mean relaxation rate according to a Vogel-Fulcher-Tammann-law (VFT-law)): While EG in silicalite and H-ZSM-5 (showing a single-molecule relaxation) has a coordination number of four, EG in zeolite beta or AlPO4-5 has a coordination number of five and behaves like a bulk liquid.
UR - http://www.scopus.com/inward/record.url?scp=0034207191&partnerID=8YFLogxK
U2 - 10.1016/S0167-7322(99)00138-5
DO - 10.1016/S0167-7322(99)00138-5
M3 - Conference article
AN - SCOPUS:0034207191
VL - 86
SP - 173
EP - 182
JO - Journal of molecular liquids
JF - Journal of molecular liquids
SN - 0167-7322
IS - 1
T2 - The Polish-Israeli-German Symposium 'Dynamical Processes in Condensed Molecular Systems'
Y2 - 19 June 1999 through 23 June 1999
ER -