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Polymers 2014, 6(9), 2371-2385; doi:10.3390/polym6092371

Biopolymer Electrolyte Based on Derivatives of Cellulose from Kenaf Bast Fiber

1
Institute of Graduate Studies, University of Malaya, 50603 Kuala Lumpur, Malaysia
2
Centre of Foundation Studies, Universiti Teknologi MARA, 42300 Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia
3
School of Chemistry Science and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia
4
Centre for Foundation Studies in Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
*
Author to whom correspondence should be addressed.
Received: 23 June 2014 / Revised: 20 August 2014 / Accepted: 10 September 2014 / Published: 19 September 2014
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Abstract

A cellulose derivative, carboxymethyl cellulose (CMC), was synthesized by the reaction of cellulose from kenaf bast fiber with monochloroacetic acid. A series of biopolymer electrolytes comprised of the synthesized CMC and ammonium acetate (CH3COONH4) were prepared by the solution-casting technique. The biopolymer-based electrolyte films were characterized by Fourier Transform Infrared spectroscopy to investigate the formation of the CMC–CH3COONH4 complexes. Electrochemical impedance spectroscopy was conducted to obtain their ionic conductivities. The highest conductivity at ambient temperature of 5.77 × 10−4 S cm−1 was obtained for the electrolyte film containing 20 wt% of CH3COONH4. The biopolymer electrolyte film also exhibited electrochemical stability up to 2.5 V. These results indicated that the biopolymer electrolyte has great potential for applications to electrochemical devices, such as proton batteries and solar cells. View Full-Text
Keywords: biopolymer electrolytes; ammonium acetate; Fourier transform infrared spectroscopy (FTIR); electrochemical stability biopolymer electrolytes; ammonium acetate; Fourier transform infrared spectroscopy (FTIR); electrochemical stability
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MDPI and ACS Style

Rani, M.S.A.; Rudhziah, S.; Ahmad, A.; Mohamed, N.S. Biopolymer Electrolyte Based on Derivatives of Cellulose from Kenaf Bast Fiber. Polymers 2014, 6, 2371-2385.

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