Lithium-functionalised silica nanoparticles for enhanced ionic conductivity in an organic ionic plastic crystal
Shekibi, Youssof, Pringle, Jennifer M., Sun, Jiazeng, Pas, Steven J., Rocher, Nathalie M., Clare, Bronya R., Hill, Anita J., MacFarlane, Douglas R. and Forsyth, Maria 2010, Lithium-functionalised silica nanoparticles for enhanced ionic conductivity in an organic ionic plastic crystal, Journal of materials chemistry, vol. 20, no. 2, pp. 338-344, doi: 10.1039/B914884A.
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Lithium-functionalised silica nanoparticles for enhanced ionic conductivity in an organic ionic plastic crystal
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.
091205 Functional Materials 030399 Macromolecular and Materials Chemistry not elsewhere classified 030607 Transport Properties and Non-equilibrium Processes
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