Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 358, Issue 8, Pages 1104-1112Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2012.02.004
Keywords
Proton conducting; Cellulose; X-ray diffraction (XRD); Ionic conductivity
Funding
- MOHE for the FRGS [Vot59185]
- Faculty of Sciences and Technology, Universiti Malaysia Terengganu
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The development of new biopolymer electrolytes (BEs) based on carboxy methylcellulose (CMC) has been accomplished by incorporating dodecyltrimethyl ammonium bromide (DTAB) to the polymer-salt system via solution-cast technique. The polymer-salt complex formation and the polymer-proton interactions have been analyzed through Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) measurement, impedance measurement and Transference number measurement (TNM). The highest conductivity at room temperature is 7.72 x 10(-4) Scm(-1) for sample containing 35 wt. % DTAB. The temperature dependence of the BEs system exhibits Arrhenius behavior. The conductivity of the samples was found to be dependent on the number of mobile ions and the mobility of the ions. It has been shown that the conducting species in this present work are predominantly due to proton (H+) which was confirmed via FTIR and TNM analysis. The results suggest that BEs system is highly potential to be applied in electrochemical devices, i.e. proton battery and fuel cell. (C) 2012 Elsevier B.V. All rights reserved.
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