Tubular array, dielectric, conductivity and electrochemical properties of biodegradable gel polymer electrolyte

Y. N. Sudhakar, M. Selvakumar, D. Krishna Bhat

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A supercapacitor based on a biodegradable gel polymer electrolyte (GPE) has been fabricated using guar gum (GG) as the polymer matrix, LiClO4 as the doping salt and glycerol as the plasticizer. The scanning electron microscopy (SEM) images of the gel polymer showed an unusual tubular array type surface morphology. FTIR, DSC and TGA results of the GPE indicated good interaction between the components used. Highest ionic conductivity and lowest activation energy values were 2.2 × 10-3 S cm-1 and 0.18 eV, respectively. Dielectric studies revealed ionic behavior and good capacitance with varying frequency of the GPE system. The fabricated supercapacitor showed a maximum specific capacitance value of 186 F g -1 using cyclic voltammetry. Variation of temperature from 273 K to 293 K did not significantly influence the capacitance values obtained from AC impedance studies. Galvanostatic charge-discharge study of supercapacitor indicated that the device has good stability, high energy density and power density.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume180
Issue number1
DOIs
Publication statusPublished - 2014

Fingerprint

Electrochemical properties
Electrolytes
dielectric properties
Polymers
Gels
electrolytes
gels
electrochemical capacitors
conductivity
guar gum
Capacitance
polymers
capacitance
Plasticizers
Ionic conductivity
Polymer matrix
Glycerol
plasticizers
Cyclic voltammetry
Surface morphology

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{8401f046b98b4984b7e33e4e8db3c3cd,
title = "Tubular array, dielectric, conductivity and electrochemical properties of biodegradable gel polymer electrolyte",
abstract = "A supercapacitor based on a biodegradable gel polymer electrolyte (GPE) has been fabricated using guar gum (GG) as the polymer matrix, LiClO4 as the doping salt and glycerol as the plasticizer. The scanning electron microscopy (SEM) images of the gel polymer showed an unusual tubular array type surface morphology. FTIR, DSC and TGA results of the GPE indicated good interaction between the components used. Highest ionic conductivity and lowest activation energy values were 2.2 × 10-3 S cm-1 and 0.18 eV, respectively. Dielectric studies revealed ionic behavior and good capacitance with varying frequency of the GPE system. The fabricated supercapacitor showed a maximum specific capacitance value of 186 F g -1 using cyclic voltammetry. Variation of temperature from 273 K to 293 K did not significantly influence the capacitance values obtained from AC impedance studies. Galvanostatic charge-discharge study of supercapacitor indicated that the device has good stability, high energy density and power density.",
author = "Sudhakar, {Y. N.} and M. Selvakumar and Bhat, {D. Krishna}",
year = "2014",
doi = "10.1016/j.mseb.2013.10.013",
language = "English",
volume = "180",
pages = "12--19",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
issn = "0921-5107",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Tubular array, dielectric, conductivity and electrochemical properties of biodegradable gel polymer electrolyte

AU - Sudhakar, Y. N.

AU - Selvakumar, M.

AU - Bhat, D. Krishna

PY - 2014

Y1 - 2014

N2 - A supercapacitor based on a biodegradable gel polymer electrolyte (GPE) has been fabricated using guar gum (GG) as the polymer matrix, LiClO4 as the doping salt and glycerol as the plasticizer. The scanning electron microscopy (SEM) images of the gel polymer showed an unusual tubular array type surface morphology. FTIR, DSC and TGA results of the GPE indicated good interaction between the components used. Highest ionic conductivity and lowest activation energy values were 2.2 × 10-3 S cm-1 and 0.18 eV, respectively. Dielectric studies revealed ionic behavior and good capacitance with varying frequency of the GPE system. The fabricated supercapacitor showed a maximum specific capacitance value of 186 F g -1 using cyclic voltammetry. Variation of temperature from 273 K to 293 K did not significantly influence the capacitance values obtained from AC impedance studies. Galvanostatic charge-discharge study of supercapacitor indicated that the device has good stability, high energy density and power density.

AB - A supercapacitor based on a biodegradable gel polymer electrolyte (GPE) has been fabricated using guar gum (GG) as the polymer matrix, LiClO4 as the doping salt and glycerol as the plasticizer. The scanning electron microscopy (SEM) images of the gel polymer showed an unusual tubular array type surface morphology. FTIR, DSC and TGA results of the GPE indicated good interaction between the components used. Highest ionic conductivity and lowest activation energy values were 2.2 × 10-3 S cm-1 and 0.18 eV, respectively. Dielectric studies revealed ionic behavior and good capacitance with varying frequency of the GPE system. The fabricated supercapacitor showed a maximum specific capacitance value of 186 F g -1 using cyclic voltammetry. Variation of temperature from 273 K to 293 K did not significantly influence the capacitance values obtained from AC impedance studies. Galvanostatic charge-discharge study of supercapacitor indicated that the device has good stability, high energy density and power density.

UR - http://www.scopus.com/inward/record.url?scp=84888319042&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84888319042&partnerID=8YFLogxK

U2 - 10.1016/j.mseb.2013.10.013

DO - 10.1016/j.mseb.2013.10.013

M3 - Article

VL - 180

SP - 12

EP - 19

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

SN - 0921-5107

IS - 1

ER -