Conductivity study on plasticized chitosan acetate based electrolytes doped with silver triflate salt system / A.M.M. Ali ... [et al.]

Ali, A.M.M. and Yahya, M.Z.A. and Harun, M.K. and Mohamad, A.A. (2005) Conductivity study on plasticized chitosan acetate based electrolytes doped with silver triflate salt system / A.M.M. Ali ... [et al.]. Science Letters, 2 (1). pp. 23-30. ISSN 1675-7785

Abstract

Plasticized polymer electrolytes composed of chitosan as the host polymer, ethylene carbonate (EC) as the plasticizer and silver triflate (AgCFjiSOj) as the doping salt were prepared by the solution cast technique. These complexes with different amounts of salts and plasticizers were investigated as possible ionic conducting polymers. This salt was chosen based on the ability of silver cation to exist as monovalent cation, which could influence the mobility of the ions in the chitosan-based electrolytes. The highest electrical conductivity, a for the chitosan-silver triflate salt at room temperature was 1.0 x 10' S cm'1. Conductivity for the plasticized AgCFjSOs (Ag Tf) doped chitosan polymer was also studied as a function of temperature between 300 K and 363 K. The plot ofln(dT) versus lCf/T for each sample obeys Arrhenius rule indicating the conductivity to be thermally assisted. The activation energy, Ea was calculated from the Arrhenius plots and the increase in conductivity can be explained in terms of the decrease in Ea and vice versa. The highest conducting CA-EC-AgCF3SOs complex has the lowest Ea of 0.60 eV. FTIR spectroscopy and XRD techniques were carried out for the complexation studies.

Metadata

Item Type: Article
Creators:
CreatorsID Num. / Email
Ali, A.M.M.UNSPECIFIED
Yahya, M.Z.A.UNSPECIFIED
Harun, M.K.UNSPECIFIED
Mohamad, A.A.UNSPECIFIED
Subjects: Q Science > QD Chemistry > Physical and theoretical chemistry > Electrolytes, electrolyte solutions
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences
Journal or Publication Title: Science Letters
Journal: UiTM Journal > Science Letters
ISSN: 1675-7785
Volume: 2
Number: 1
Page Range: pp. 23-30
Item ID: 11788
Uncontrolled Keywords: solid polymer electrolytes, chitosan, electrical conducting polymer, plasticizer
URI: http://ir.uitm.edu.my/id/eprint/11788

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