Influence of PEG plasticizer content on the proton-conducting PEO:MC-NH4I blend polymer electrolytes based films

Proton conducting solid polymer electrolytes comprising PEO: PVP blend with ammonium nitrate in different compositions are prepared by solution casting technique and they are characterized with different techniques. X-ray diffraction (XRD) shows that the prepared polymer electrolytes have amorphous nature. Fourier transform infrared(FTIR) spectroscopy confirms the functional groups present in the polymer membranes. The scanning electron microscopical(SEM) images confirm the presence of smooth surface in the polymer electrolytes. The ionic conductivity values are calculated by ac impedance technique. The maximum ionic conductivity is obtained for 12 wt% ammonium nitrate doped polymer system at ambient temperature (6.39 × 10−5 S/cm). From the transference number analysis by Wagner’s polarization technique, the type of conductivity, mobility and charge-carrier concentration are confirmed. Electrochemical performance is also investigated using cyclic voltammetry (CV) studies.

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Electrochemical Impedance study of Proton Conducting Polymer Electrolytes based on PVC Doped with Thiocyanate and Plasticized with Glycerol

International Journal of Electrochemical Science ◽

10.20964/2020.05.34 ◽

2020 ◽

pp. 4671-4683 ◽

Cited By ~ 11

Author(s):

Jihad M. Hadi ◽

Keyword(s):

Conducting Polymer ◽

Polymer Electrolytes ◽

Electrochemical Impedance ◽

Proton Conducting ◽

Impedance Study

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Conductivity Studies of ENR Based Proton Conducting Polymer Electrolytes

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.129-131.561 ◽

2010 ◽

Vol 129-131 ◽

pp. 561-565 ◽

Cited By ~ 4

Author(s):

S.F. Mohammad ◽

Razali Idris ◽

N.S. Mohamed

Keyword(s):

Conducting Polymer ◽

Polymer Electrolytes ◽

Salt Content ◽

Polymer Chains ◽

Segmental Motion ◽

Proton Conducting ◽

Casting Technique ◽

Dsc Studies ◽

Solution Casting Technique ◽

And Migration

The present study focuses on preparation of ENR-50/PEMA-NH4CF3SO3 proton conducting polymer electrolytes by solution casting technique. Conductivity increases with NH4CF3SO3 concentration up to 40 wt.% but decreases with further increase in salt content. The temperature dependent conductivity study shows that the conductivity-temperature behaviour of ENR-50/PEMA-NH4CF3SO3 electrolytes follows the VTF rule. DSC studies show that the Tg increases with increase in salt content. This means that the increase in conductivity of ENR-50/PEMA-NH4CF3SO3 is incorrelated to the increase of the segmental motion of the host polymer chains but may be attributed to the increase in the concentration and migration rate of charge carriers.

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