Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 2862-2867 |
| Seitenumfang | 6 |
| Fachzeitschrift | Journal of non-crystalline solids |
| Jahrgang | 358 |
| Ausgabenummer | 21 |
| Publikationsstatus | Veröffentlicht - 15 Okt. 2012 |
Abstract
We studied the local structure and dynamics of dissolved water in hydrous aluminosilicate glasses with the compositions NaAlSi 3O 8·0.3H 2O, NaAlSi 3O 8·1. 3H 2O and Ca 0.5AlSi 3O 8·1. 3H 2O by using multinuclear NMR spectroscopy. Glasses were produced by melting glass powders with deuterium oxide under high pressure and the resulting 2H/( 1H + 2H) ratio of the hydrous glasses was larger than 80%. NMR spectra reveal clear evidence for the presence of OH groups as well as of H 2O molecules. The motion of these water species in the time range from some μs to some ms was studied by 1H NMR relaxation rates and the temperature dependence of the 2H NMR spectra. The motion is faster in the Ca-bearing glass than in the Na-bearing glass. The results are compared with those from quasi-elastic neutron scattering.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Journal of non-crystalline solids, Jahrgang 358, Nr. 21, 15.10.2012, S. 2862-2867.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Multinuclear NMR spectroscopic studies of structure and dynamics in hydrous NaAlSi 3O 8 and Ca 0.5AlSi 3O 8 glasses
AU - Indris, Sylvio
AU - Heitjans, Paul
AU - Grey, Clare P.
PY - 2012/10/15
Y1 - 2012/10/15
N2 - We studied the local structure and dynamics of dissolved water in hydrous aluminosilicate glasses with the compositions NaAlSi 3O 8·0.3H 2O, NaAlSi 3O 8·1. 3H 2O and Ca 0.5AlSi 3O 8·1. 3H 2O by using multinuclear NMR spectroscopy. Glasses were produced by melting glass powders with deuterium oxide under high pressure and the resulting 2H/( 1H + 2H) ratio of the hydrous glasses was larger than 80%. NMR spectra reveal clear evidence for the presence of OH groups as well as of H 2O molecules. The motion of these water species in the time range from some μs to some ms was studied by 1H NMR relaxation rates and the temperature dependence of the 2H NMR spectra. The motion is faster in the Ca-bearing glass than in the Na-bearing glass. The results are compared with those from quasi-elastic neutron scattering.
AB - We studied the local structure and dynamics of dissolved water in hydrous aluminosilicate glasses with the compositions NaAlSi 3O 8·0.3H 2O, NaAlSi 3O 8·1. 3H 2O and Ca 0.5AlSi 3O 8·1. 3H 2O by using multinuclear NMR spectroscopy. Glasses were produced by melting glass powders with deuterium oxide under high pressure and the resulting 2H/( 1H + 2H) ratio of the hydrous glasses was larger than 80%. NMR spectra reveal clear evidence for the presence of OH groups as well as of H 2O molecules. The motion of these water species in the time range from some μs to some ms was studied by 1H NMR relaxation rates and the temperature dependence of the 2H NMR spectra. The motion is faster in the Ca-bearing glass than in the Na-bearing glass. The results are compared with those from quasi-elastic neutron scattering.
KW - Aluminosilicates
KW - Hydrogen dynamics
KW - Hydrous glasses
KW - NMR spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=84865973564&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2012.07.019
DO - 10.1016/j.jnoncrysol.2012.07.019
M3 - Article
AN - SCOPUS:84865973564
VL - 358
SP - 2862
EP - 2867
JO - Journal of non-crystalline solids
JF - Journal of non-crystalline solids
SN - 0022-3093
IS - 21
ER -