Proton conducting polymer electrolytes of methylcellulose doped ammonium fluoride: Conductivity and ionic transport studies

Abstract

Methylcellulose (MC) was used as polymer host and Ammonium Fluoride (AF) salt was used as the proton donor. A proton-conducting solid polymer electrolytes (SPE) was prepared by the solution casting method. The highest ionic conductivity at room temperature is 6.4 x 10-7 Scm-1. The ionic mobility and diffusion coefficient that was calculated in this work is in good agreement with the increment of weight percent (wt %) of acid concentration. The value of cation of diffusion coefficient and ionic mobility was higher than value of anion. Thus, the results proven that the present samples were proton conductor.   Key words: Methylcellulose, ammonium fluoride, polymer electrolyte, proton conductor, ionic transport.