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

journal contribution
posted on 01.01.2010, 00:00 authored by Y Shekibi, Jenny PringleJenny Pringle, J Sun, S Pas, N Rocher, B Clare, A Hill, D MacFarlane, Maria ForsythMaria Forsyth
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.

History

Journal

Journal of materials chemistry

Volume

20

Issue

2

Pagination

338 - 344

Publisher

Royal Society of Chemistry

Location

Cambridge, England

ISSN

0959-9428

eISSN

1364-5501

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2010, Royal Society of Chemistry