Authors
Citation
Js. Sanghera et al., Catalyzed gelation of amorphous sulphides, J NON-CRYST, 257, 1999, pp. 31-35
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF NON-CRYSTALLINE SOLIDS
ISSN journal
00223093
→ ACNP
Volume
257
Year of publication
1999
Pages
31 - 35
Database
ISI
SICI code
0022-3093(199910)257:<31:CGOAS>2.0.ZU;2-Q
Abstract
Amorphous GeS2 and Er3+:GeS2 gels have been fabricated. The Er3+ doped GeS2
gelation rate is quicker and goes more to completion than the correspondin
g GeS2 gel. This difference is attributed to the role of Er3+ as a Lewis ac
id which speeds up the thiolysis rate and, in analogy to silica gels, this
rate leads to a gel with a particulate (10 nm) structure compared with a po
lymeric structure for the undoped GeS2 gel. (C) 1999 Elsevier Science B.V.
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