Abstract
This work reports the synthesis and characterization of modified pectin based polymer electrolyte membranes crossilnked with glutaraldehyde (GA). The prepared diethanolamine modified pectin (DAP) membranes were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), methanol permeability and impedance spectroscopy. FTIR spectroscopic investigation indicates the presence of secondary amide absorption bands in the developed polymer electrolyte membranes. X-ray analysis reveals considerable improvement in the crystallinity of the electrolyte membranes after modification. The methanol permeability measurement confirms the lower methanol cross-over through the developed DAP membranes. A maximum room temperature proton conductivity of 2.536 × 10−2 was obtained for the membrane, which was designated as DAP-4. These properties make them good candidates for low cost biopolymer electrolyte membranes for fuel cell applications.
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Mishra, R.K., Datt, M., Banthia, A.K. et al. Development of novel pectin based membranes as proton conducting material. Int J Plast Technol 16, 80–88 (2012). https://doi.org/10.1007/s12588-012-9031-7
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DOI: https://doi.org/10.1007/s12588-012-9031-7