Ionic liquid incorporated SPEEK/Chitosan solid polymer electrolytes: ionic conductivity and dielectric study

被引:13
作者
Yilmazoglu, Mesut [1 ]
Bayiroglu, Fatih [2 ]
Erdemi, Hamit [3 ]
Abaci, Ufuk [4 ]
Guney, H. Yuksel [5 ]
机构
[1] Yalova Univ, Fac Engn, Dept Chem Engn, TR-77100 Yalova, Turkiye
[2] Yalova Univ, Inst Sci, Dept Chem Engn, TR-77200 Yalova, Turkiye
[3] Yalova Univ, Fac Engn, Dept Polymer Mat Engn, TR-77100 Yalova, Turkiye
[4] Kocaeli Univ, Ford Otosan Ihsaniye Automot Vocat Sch, TR-41680 Kocaeli, Turkiye
[5] Kocaeli Univ, Fac Arts & Sci, Dept Phys, TR-41380 Umuttepe, Kocaeli, Turkiye
关键词
Polymer electrolyte; Sulfonated poly (ether ether ketone); Chitosan; Ionic liquid; Proton conductivity; FUEL-CELL APPLICATIONS; POLY(ETHER ETHER KETONE); NANOCOMPOSITE MEMBRANES; COMPOSITE MEMBRANES; CHITOSAN; SPEEK;
D O I
10.1007/s10008-023-05431-y
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
In this study, polymeric membranes composed of ionic liquid (IL), 1-ethyl-3-methylimidazolium tetrafluoroborate supported sulfonated poly(ether ether ketone) (SPEEK), and chitosan (CS) were prepared as novel promising solid polymer electrolytes (SPEs). First, the SPEEK polymer matrix was obtained by sulfonation of the PEEK polymer backbone. A composite membrane series (SPEEK/CS/IL-(1-4)) was created by adding CS at varying weight ratios according to the SPEEK. Structural, thermal, mechanical, and morphological characterizations were performed by FTIR, TGA, DMA, and SEM, respectively. Proton conductivity and dielectric measurements were performed over a wide temperature range to evaluate electrochemical properties. Composite membranes were stable for electrochemical processes at average temperatures. Storage modules have also improved with the addition of CS. All composite membranes showed ionic conductivities greater than 1 x 10(-4) S.cm(-1), and the maximum conductivity was measured for SPEEK/CS/IL-4 as 9.87 x 10(-3) S.cm(-1). Proton conductivity and dielectric tests showed that the SPEEK/CS/IL membrane series was presented as a novel SPE candidate.
引用
收藏
页码:1143 / 1154
页数:12
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