Playing with ionic liquids to uncover novel polymer electrolytes

被引：14
|
作者：
Leones, Rita [1 ,2 ]
Sabadini, Rodrigo C. [3 ]
Esperanca, Jose M. S. S. [2 ,4 ]
Pawlicka, Agnieszka [3 ]
Silva, M. Manuela [1 ]
机构：
[1] Univ Minho, Ctr Quim, Campus Gualtar, P-4710057 Braga, Portugal
[2] Univ Nova Lisboa, Inst Tecnol Quim & Biol Antonio Xavier, P-2780157 Oeiras, Portugal
[3] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13566590 Sao Carlos, SP, Brazil
[4] Univ Nova Lisboa, Fac Ciencias & Tecnol, LAQV, REQUIMTE,Dept Quim, P-2829516 Caparica, Portugal
来源：
SOLID STATE IONICS | 2017年 / 300卷
关键词：
Solid polymer electrolyte; Ionic liquid; Chitosan; Ionic conductivity; SENSITIZED SOLAR-CELL; LOW-VISCOSITY; CONDUCTIVITY ENHANCEMENT; DICYANAMIDE ANION; CHITOSAN; LITHIUM; SALTS; IMIDAZOLIUM; TEMPERATURE; PLASTICIZER;
D O I：
10.1016/j.ssi.2016.11.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：46 / 52
页数：7
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