Transport studies of carboxymethyl cellulose/ chitosan ammonium bromide biopolymer blend electrolytes as an ionic conductor

Nur Hafiza Mr Muhamaruesa, . and Mohd Ikmar Nizam Mohamad Isa, . Transport studies of carboxymethyl cellulose/ chitosan ammonium bromide biopolymer blend electrolytes as an ionic conductor. pp. 58-64. ISSN 1823-8556

Cellulose and chitin derivative-based biopolymer electrolytes have a great potential for application in solid state electrochemical devices. In the present work carboxymethyl cellulose (CMC)/ chitosan (CS) biopolymer blend electrolytes (BBEs) incorporated with different ammonium bromide (NH4Br) composition were prepared using solution casting technique. The correlations between ionic conductivity and transport mechanism of BBEs have been investigated using electrical impedance spectroscopy (EIS) and DC polarization technique. Calculation using Rice and Roth model shows the increase of ionic conductivity was influenced by ionic mobility and diffusion coefficient D. The conducting species in BBE system is predominantly due to ion (t 1) as evidenced by the majority of the ionic transference number. This study confirmed that the CMC/CSNH4 Br BBE is a proton conductor.

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Abstract

Cellulose and chitin derivative-based biopolymer electrolytes have a great potential for application in solid state electrochemical devices. In the present work carboxymethyl cellulose (CMC)/ chitosan (CS) biopolymer blend electrolytes (BBEs) incorporated with different ammonium bromide (NH4Br) composition were prepared using solution casting technique. The correlations between ionic conductivity and transport mechanism of BBEs have been investigated using electrical impedance spectroscopy (EIS) and DC polarization technique. Calculation using Rice and Roth model shows the increase of ionic conductivity was influenced by ionic mobility and diffusion coefficient D. The conducting species in BBE system is predominantly due to ion (t 1) as evidenced by the majority of the ionic transference number. This study confirmed that the CMC/CSNH4 Br BBE is a proton conductor.

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Item Type:	Article
AGROVOC Term:	Biopolymers
AGROVOC Term:	Electrolytes
AGROVOC Term:	Carboxymethylcellulose
AGROVOC Term:	Chitosan
AGROVOC Term:	Ammonium
AGROVOC Term:	Bromides
AGROVOC Term:	Models
AGROVOC Term:	Electrodes
AGROVOC Term:	Polarization
AGROVOC Term:	Temperature
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/24215

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