Mohd Ikmar Nizam Bin Haji Mohamad Isa
Universiti Malaysia Terengganu,Malaysia
Title: Immittance Responses Study of Dodecyltrimethyl Ammonium Bromide Effect on 2-Hydroxyethyl Cellulose Solid Biopolymer Electrolytes
Biography
Biography: Mohd Ikmar Nizam Bin Haji Mohamad Isa
Abstract
In this work, the development of solid biopolymer electrolytes (SBEs) system was done via solution casting technique comprising 2-hydroxyethyl cellulose (2-HEC) doped with 3 to 15 wt. % dodecyltrimethyl ammonium bromide (DTAB). The electrical impedance spectroscopy (EIS) analysis showed the room temperature ionic conductivity for un-dope 2-HEC SBE is 6.42 x 10-7 S/cm and enhanced with the addition of DTAB in the biopolymer system. Sample with 9 wt. % of DTAB records the highest ionic conductivity at room temperature of 2.80 x 10-5 S/cm. The 2-HEC–DTAB SBEs conforms Arrhenius behavior where the ionic conductivity increases linearly to temperature with regression value of ~1. The system was observed to satisfy non-Debye type through the frequency dependence of dielectric and tangent study at various temperature and frequencies. Consequently, the activation energy of relaxation is lower than the activation energy conduction implies that the charge carrier has to overcome higher energy barrier during conducting.