Biopolymer electrolytes based on carboxymethyl ҡ-carrageenan and imidazolium ionic liquid

I. J. Shamsudin, Azizan Ahmad, Nur Hasyareeda Hassan, H. Kaddami

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Novel biopolymer electrolytes based on carboxymethyl kappa-carrageenan (CMҡ-carrageenan) and ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) have been successfully developed. Strong coordination and hydrogen bonding interaction of [Bmim]Cl with the biopolymer were detected by Fourier transform infrared (FTIR) spectroscopy. The efficient function of [Bmim]Cl as the charge carrier in the system was reflected by electrochemical impedance spectroscopy (EIS) where the highest ionic conductivity (σ) of (5.76 ± 0.20) × 10−3 S cm−1 was achieved at ambient temperature (298 K) upon 30 wt.% of [Bmim]Cl inclusion. X-ray diffraction (XRD) analysis confirmed that the addition of ionic liquid did not alter the prominent amorphous phase of CMҡ-carrageenan. Analysis of scanning electron microscopy (SEM) proved the strong interaction of [Bmim]Cl with the biopolymer matrix. The highest conducting biopolymer electrolyte showed an electrochemical stability up to 3.0 V, whereas the transference number measurement revealed that ions are the major elements that contribute to the conductivity with 0.970 ion transference number.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalIonics
DOIs
Publication statusAccepted/In press - 7 Dec 2015

Fingerprint

Ionic Liquids
Biopolymers
Carrageenan
biopolymers
Ionic liquids
Electrolytes
chlorides
electrolytes
liquids
Ions
Ionic conductivity
Charge carriers
Electrochemical impedance spectroscopy
X ray diffraction analysis
Fourier transform infrared spectroscopy
Hydrogen bonds
ion currents
ambient temperature
charge carriers
ions

Keywords

  • 1-Butyl-3-methylimidazolium chloride
  • Biopolymer electrolytes
  • Carboxymethyl
  • Ionic conductivity
  • Ionic liquid

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Biopolymer electrolytes based on carboxymethyl ҡ-carrageenan and imidazolium ionic liquid. / Shamsudin, I. J.; Ahmad, Azizan; Hassan, Nur Hasyareeda; Kaddami, H.

In: Ionics, 07.12.2015, p. 1-11.

Research output: Contribution to journalArticle

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