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Solid State NMR Studies of Ionically Conductive Non-Oxide Chalcogenide Glasses

Published online by Cambridge University Press:  21 February 2011

Hellmut Eckert ,
Zhengming Zhang  and
J. H. Kennedy
Hellmut Eckert
Affiliation:
Department of Chemistry, University of California, Santa Barbara, Goleta, CA 93106
Zhengming Zhang
Affiliation:
Department of Chemistry, University of California, Santa Barbara, Goleta, CA 93106
J. H. Kennedy
Affiliation:
Department of Chemistry, University of California, Santa Barbara, Goleta, CA 93106
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Abstract

The utility of 29Si, 31 p, and 6.7 Li MAS-NMR at 7.05 T to provide structural information in non-oxide chalcogenide glasses is discussed in connection with experimental results obtained on the systems Li2 S-SiS2, Li2 S-SiS2 -P2S5, and Li2 S-P2 S5-B2 S329Si MAS-NMR data indicate that the principles governing glass formation in these systems are fundamentally different from those applicable to stoichiometry-analog oxide glasses. 31p MAS-NMR can be used to identify microphase-separation in glasses containing two network former constituents. The use of the rare isotope 6 Li instead of 7 Li offers the advantage of significantly improved spectroscopic resolution, enabling the presentation of the first comprehensive lithium NMR chemical shift scale in the solid state.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 135: Symposium M – Solid State Ionics I , 1988 , 259
Copyright
Copyright © Materials Research Society 1989

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