Effect of Filler Type on the Electrical Properties of Hexanoyl Chitosan-Based Polymer Electrolytes

Abstract:

A preliminary investigation of polymer electrolyte based on hexanoyl chitosan, lithium perchlorate (LiClO₄) and various filler additives are described in this paper. Hexanoyl chitosan-based nanocomposite polymer electrolytes were prepared using solution casting technique. The effect of filler addition and type of filler on the electrical properties of the prepared electrolyte system was investigated by impedance spectroscopy (IS). The maximum conductivity of 3.06 × 10^-4 S cm^-1 and 1.96 × 10^-4 S cm^-1 were achieved for the hexanoyl chitosan-LiClO₄-TiO₂ and hexanoyl chitosan-LiClO₄-SiO₂ electrolyte system, respectively. The variations in conductivity observed were discussed quantitatively using the Rice and Roth model from which the concentration of free ions and their mobility were calculated.

• Periodical: Advanced Materials Research (Volume 832)
• Pages: 224-227
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.832.224
• Online since: November 2013
• Authors: Nurul Hazwani Aminuddin Rosli, F.H. Muhammad, Chin Han Chan, Tan Winie
• Keywords: Hexanoyl Chitosan, LiClO₄, Rice, Roth Model, SiO₂, TiO₂

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