Issue 2, 2010
From the journal:

Journal of Materials Chemistry

Lithium-functionalised silicananoparticles for enhanced ionic conductivity in an organic ionic plastic crystal

Youssof Shekibi,a   Jennifer M. Pringle,*ab   Jiazeng Sun,a   Steven J. Pas,ac   Nathalie M. Rocher,a   Bronya R. Clare,b   Anita J. Hill,bc   Douglas R. MacFarlaneb  and  Maria Forsytha  

* Corresponding authors

a Department of Materials Engineering, ARC Centre of Excellence for Electromaterials Science, Monash University, Wellington Rd, Clayton, VIC, Australia
E-mail: jenny.pringle@sci.monash.edu.au

b School of Chemistry, ARC Centre of Excellence for Electromaterials Science, Monash University, Wellington Rd, Clayton, VIC, Australia

c CSIRO, Private Bag 33, Clayton, VIC, Australia

Abstract

Addition of silica nanoparticles functionalised with lithium propane sulfonate to the organic ionic plastic crystal N-ethyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)amide ([C2mpyr][NTf2]) results in a significant increase in ionic conductivity. Analysis of these nanocomposites by impedance spectroscopy, NMR, positron annihilation lifetime spectroscopy (PALS) and Raman spectroscopy suggests that this is the result of higher matrix mobility due to an increase in defect size and concentration. The effect of these functionalised nanoparticles is compared to that previously observed for unfunctionalised nanoparticles in the lithium-doped and pure plastic crystal.

Graphical abstract: Lithium-functionalised silica nanoparticles for enhanced ionic conductivity in an organic ionic plastic crystal

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Article information

DOI
https://doi.org/10.1039/B914884A
Article type
Paper
Submitted
23 Jul 2009
Accepted
02 Oct 2009
First published
04 Nov 2009

J. Mater. Chem., 2010,20, 338-344

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Lithium-functionalised silica nanoparticles for enhanced ionic conductivity in an organic ionic plastic crystal

Y. Shekibi, J. M. Pringle, J. Sun, S. J. Pas, N. M. Rocher, B. R. Clare, A. J. Hill, D. R. MacFarlane and M. Forsyth, J. Mater. Chem., 2010, 20, 338 DOI: 10.1039/B914884A

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