Journal
SOLID STATE IONICS
Volume 300, Issue -, Pages 46-52Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2016.11.018
Keywords
Solid polymer electrolyte; Ionic liquid; Chitosan; Ionic conductivity
Categories
Funding
- FEDER through the COMPETE Program
- Portuguese Foundation for Science and Technology (FCT) [PEST-C/QUI/UI0686/2013]
- research units GREEN-it Bioresources for Sustainability [UID/Multi/04551/2013]
- Associated Laboratory for Green Chemistry - Clean Technologies and Processes [UID/QUI/50006/2013, SRFH/BD/90366/2012]
- CNPq (PVE) [406617/2013-9]
- Fundação para a Ciência e a Tecnologia [UID/Multi/04551/2013] Funding Source: FCT
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Solid polymer electrolytes (SPEs) based on chitosan and fourteen ionic liquids (ILs) were synthesized by solvent casting method. All ILs had in common a 1-ethyl-3-methylimidazolium cation ([C(2)mim](+)). Therefore, this study focuses on the influence of the anion on the thermal, morphological, and electrochemical properties of the SPEs. The samples were analyzed by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), complex impedance spectroscopy (ionic conductivity) and cyclic voltammetry. The SPEs displayed an amorphous morphology, a thermal stability higher than the one obtained for the pure chitosan matrix (>140 degrees C), a maximum room temperature (T = 25 degrees C) ionic conductivity of 1.61 x 10(-3) S cm(-1) and a wide electrochemical window of similar to 4.0 V. (C) 2016 Elsevier B.V. All rights reserved.
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