Study of proton-conducting polymer electrolyte based on K-carrageenan and NH4SCN for electrochemical devices

被引：53
|
作者：
Selvin, P. Christopher [1 ]
Perumal, P. [1 ]
Selvasekarapandian, S. [1 ,2 ]
Monisha, S. [2 ]
Boopathi, G. [2 ,3 ]
Chandra, M. V. Leena [4 ]
机构：
[1] Bharathiar Univ, Dept Phys, Coimbatore 641046, Tamil Nadu, India
[2] Mat Res Ctr, Coimbatore 641045, Tamil Nadu, India
[3] Tamil Nadu Agr Univ, Dept Bioenergy, Coimbatore 641003, Tamil Nadu, India
[4] Fatima Coll, Dept Phys, Madurai 625018, Tamil Nadu, India
来源：
IONICS | 2018年 / 24卷 / 11期
关键词：
Biopolymer; Membrane; Amorphous; Ionic conductivity; Fuel cell; KAPPA-CARRAGEENAN; CELLULOSE-ACETATE; CHITOSAN; COMPOSITE; CELL;
D O I：
10.1007/s11581-018-2521-7
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：
A proton-conducting solid biopolymer electrolyte (SBE) that consists of kappa-carrageenan (K-carrageenan) incorporated with ammonium thiocyanate (NH4SCN) has been prepared by solution-casting technique. The prepared membranes are subjected to XRD, FTIR, and AC impedance analysis to study their structural, optical, and electrical properties of the electrolytes, respectively. The amorphous nature of the membrane has been inferred from the results of XRD analysis. The complexation between salt and host polymer matrix has been confirmed by FTIR. From AC impedance analysis, the polymer incorporated with 0.5% of NH4SCN achieved a maximum ionic conductivity of the order of 6.83x10(-4)Scm(-1). The dielectric spectra and modulus spectra reveal the non-Debye behavior of the polymer membrane. A fuel cell has been constructed using the prepared SBE, and its open circuit voltage has been measured.
引用
收藏
页码：3535 / 3542
页数：8
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