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Article

Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application

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Hameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46001, Iraq
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Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Kurdistan Regional Government, Sulaimani 46001, Iraq
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Chemical Engineering Section, Universiti Kuala Lumpur Malaysian Institute of Chemical & Bioengineering Technology (UniKL MICET), Alor Gajah 78000, Malaysia
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Centre for Foundation Studies in Science, University of Malaya, Kuala Lumpur 50603, Malaysia
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Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Department of Medical Laboratory of Science, College of Health Sciences, University of Human Development, Kurdistan Regional Government, Sulaimani 46001, Iraq
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco Lufrano
Polymers 2021, 13(8), 1183; https://doi.org/10.3390/polym13081183
Received: 4 March 2021 / Revised: 28 March 2021 / Accepted: 29 March 2021 / Published: 7 April 2021
(This article belongs to the Special Issue Advanced Functional Polymers for Energy Applications)
In this work, a pair of biopolymer materials has been used to prepare high ion-conducting electrolytes for energy storage application (ESA). The chitosan:methylcellulose (CS:MC) blend was selected as a host for the ammonium thiocyanate NH4SCN dopant salt. Three different concentrations of glycerol was successfully incorporated as a plasticizer into the CS–MC–NH4SCN electrolyte system. The structural, electrical, and ion transport properties were investigated. The highest conductivity of 2.29 × 10−4 S cm−1 is recorded for the electrolyte incorporated 42 wt.% of plasticizer. The complexation and interaction of polymer electrolyte components are studied using the FTIR spectra. The deconvolution (DVN) of FTIR peaks as a sensitive method was used to calculate ion transport parameters. The percentage of free ions is found to influence the transport parameters of number density (n), ionic mobility (µ), and diffusion coefficient (D). All electrolytes in this work obey the non-Debye behavior. The highest conductivity electrolyte exhibits the dominancy of ions, where the ionic transference number, tion value of (0.976) is near to infinity with a voltage of breakdown of 2.11 V. The fabricated electrochemical double-layer capacitor (EDLC) achieves the highest specific capacitance, Cs of 98.08 F/g at 10 mV/s by using the cyclic voltammetry (CV) technique. View Full-Text
Keywords: chitosan; methylcellulose; ammonium thiocyanate; glycerol; ionic transport parameters; TNM and LSV; CV and EDLC chitosan; methylcellulose; ammonium thiocyanate; glycerol; ionic transport parameters; TNM and LSV; CV and EDLC
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MDPI and ACS Style

Aziz, S.B.; Asnawi, A.S.F.M.; Kadir, M.F.Z.; Alshehri, S.M.; Ahamad, T.; Yusof, Y.M.; Hadi, J.M. Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application. Polymers 2021, 13, 1183. https://doi.org/10.3390/polym13081183

AMA Style

Aziz SB, Asnawi ASFM, Kadir MFZ, Alshehri SM, Ahamad T, Yusof YM, Hadi JM. Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application. Polymers. 2021; 13(8):1183. https://doi.org/10.3390/polym13081183

Chicago/Turabian Style

Aziz, Shujahadeen B., Ahmad S. F. M. Asnawi, Mohd Fakhrul Zamani Kadir, Saad M. Alshehri, Tansir Ahamad, Yuhanees M. Yusof, and Jihad M. Hadi. 2021. "Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application" Polymers 13, no. 8: 1183. https://doi.org/10.3390/polym13081183

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