Enhancement of ion dynamics in PMMA-based gels with addition of TiO2 nano-particles

Adebahr, J., Byrne, N., Forsyth, M., MacFarlane, D. R. and Jacobsson, P. 2003, Enhancement of ion dynamics in PMMA-based gels with addition of TiO2 nano-particles, Electrochimica acta, vol. 48, no. 14-16, pp. 2099-2103.

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Title Enhancement of ion dynamics in PMMA-based gels with addition of TiO2 nano-particles
Formatted title Enhancement of ion dynamics in PMMA-based gels with addition of TiO2 nano-particles
Author(s) Adebahr, J.
Byrne, N.
Forsyth, M.
MacFarlane, D. R.
Jacobsson, P.
Journal name Electrochimica acta
Volume number 48
Issue number 14-16
Start page 2099
End page 2103
Publisher Elsevier Science Pub. Co.
Place of publication New York, N.Y.
Publication date 2003-06-30
ISSN 0013-4686
1873-3859
Keyword(s) polymer gel electrolytes
PMMA
nanocomposite
TiO2
composite electrolytes
NMR
raman
Summary Solvent and ion dynamics in PMMA based gels have been investigated as a function of the loading of nanosized TiO2 particles. The gels have a molar ratio of 46.5:19:4.5:30 of ethylene carbonate (EC), propylene carbonate (PC), lithium perchlorate and PMMA, respectively. A series of samples with 0, 4, 6 and 8 wt.% TiO2 filler were investigated. The diffusion coefficients for the lithium ions and for the two solvents (EC and PC) were investigated by pfg-NMR. It was shown that the addition of filler to the gel electrolytes enhances the diffusion of the cations, while the diffusion of the solvents remains constant. Raman measurements show no significant changes in ion–ion interactions with the addition of fillers, while the ionic conductivity is seen to decrease. However, the sample with 8 wt.% TiO2 had a conductivity close to that of the unfilled sample.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2003, Elsevier Science Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030042

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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