Proton Conducting Carboxy Methyl Cellulose Solid Polymer Electrolytes Doped with Citric Acid

W.F. Ng; Mui Nyuk Chai; Mohd Ikmar Nizam Mohamad Isa

doi:10.4028/www.scientific.net/AMR.895.130

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 895Proton Conducting Carboxy Methyl Cellulose Solid...

Proton Conducting Carboxy Methyl Cellulose Solid Polymer Electrolytes Doped with Citric Acid

Abstract:

Novel solid polymer electrolytes containing carboxy methylcellulose (CMC) are prepared based on the vary concentration (0 - 45 wt. %) of citric acid (CA) via solution casting technique. The ion conductivity is studied by electrical impedance spectroscopy and the ionic mobility, μ and the diffusion coefficient, D is investigated by transference number measurement. The highest ionic conductivity at room temperature (303K) is 4.38 x 10^-7S cm^-1 for 40 wt. % CA. The values of μ₊ and D₊were higher than μ_-and D_- respectively, implying that the CMC-CA solid polymer electrolytes are proton conductor.