Characterization of solid polymer electrolyte based on gum tragacanth and lithium nitrate

被引：7

作者：

Jenova, I ^{[1
,2
]}

Venkatesh, K. ^{[1
,2
]}

Karthikeyan, S. ^{[1
]}

Madeswaran, S. ^{[3
]}

Arivanandhan, M. ^{[4
]}

Joice, Sheeba D. ^{[1
]}

机构：

[1] Madras Christian Coll, Dept Phys, Chennai 600059, Tamil Nadu, India

[2] Univ Madras, Chennai, Tamil Nadu, India

[3] Vellore Inst Technol VIT, Ctr Funct Mat CFM, Vellore, Tamil Nadu, India

[4] Anna Univ, Ctr Nanosci & Technol, Chennai, Tamil Nadu, India

来源：

POLYMER-PLASTICS TECHNOLOGY AND MATERIALS | 2021年 / 60卷 / 17期

关键词：

Biopolymer; natural gum; tragacanth gum; solid polymer electrolyte; impedance analysis; dielectric studies; ELECTRICAL-PROPERTIES; DIELECTRIC-PROPERTIES; ION-TRANSPORT; BLEND; CELLULOSE; POLYSACCHARIDE; CONDUCTIVITY;

D O I：

10.1080/25740881.2021.1934018

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Tragacanth Gum is a natural gum that has been widely used in food, pharmaceutical, and cosmetic industries. The electrochemical properties of the gum have not been explored yet. Therefore, in the present work solid polymer electrolytes based on Gum Tragacanth (GT) and Lithium nitrate (LN) have been synthesized by solution casting method. The dissociation and complexation of the salt with the host polymer are confirmed using XRD and FTIR studies. Impedance analysis was carried out using electrochemical impedance spectroscopy (EIS) in the temperature range of 308-343 K. The highest ionic conductivity at room temperature is found to be 8.28 x 10(-3) Scm(-1). The temperature dependence of the system GT:LN was found to obey Arrhenius behavior. Dielectric studies were carried out using impedance spectroscopy in the frequency range 10 Hz-4 MHz. Transference number study showed that the main charge carriers were ions and electrochemical stability window for the highest conducting electrolyte was studied using Linear sweep voltammetry. Thermogravimetry studies showed that thes electrolytes are thermally stable.

引用

页码：1898 / 1912

页数：15