I am looking for a cheaper material which can be used for ionic conduction. It is reported that polyaniline has high electrical conductivity but I want to know whether it can conduct ions or not?
See ths paper Effect of polyaniline to enhance lithium iron phosphate conductivity
Anissa Wijayati, Susan Susanti, Iman Rahayu, and Sahrul Hidayat
Citation: AIP Conference Proceedings 1712, 050021 (2016);
View online: https://doi.org/10.1063/1.4941904
View Table of Contents: http://aip.scitation.org/toc/apc/1712/1
Published by the American Institute of Physics
The conducting states of dry polyaniline films as it is normally used are due to pi-electron delocalization, so it is considered an electronic conductor. But, in acid solution (see e.g. Article Mixed electron and proton conductivity of polyaniline films ...
) it seems to show mixed ionic-electronic conductivity.
Polyaniline itself is a clear and clean electronic conductor, if well prepared, PAni is even a metal (a nanometal having 2 conductivity contributions, one is metallic, the other one is quantum tunneling from particle to particle, the primary particles are 10 nm small)
See
Chapter Conductive Polymers as Organic Nanometals
and
Chapter Metallic Properties of Conductive Polymers due to Dispersion
if dispersed in water (no solution of PAni is possible!), it is not the PAni which delivers ionic conductivity, but excess acid.
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