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Partial sulfonation of PVdF-co-HFP: A preliminary study and characterization for application in direct methanol fuel cell

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  • Das, Suparna
  • Kumar, Piyush
  • Dutta, Kingshuk
  • Kundu, Patit Paban

Abstract

Sulfonation of PVdF-co-HFP was conducted by treating the copolymer with chlorosulfonic acid. The efficiency of this sulfonated copolymer towards application as a polymer electrolyte membrane in direct methanol fuel cell (DMFC) was evaluated. For this purpose, we determined the thermal stability, water uptake, ion exchange capacity (IEC), methanol crossover, and proton conductivity of the prepared membranes as functions of duration and degree of sulfonation. The characteristic aromatic peaks obtained in the FT-IR spectra confirmed the successful sulfonation of PVdF-co-HFP. The effect of sulfonation on the semi-crystalline nature of pure PVdF-co-HFP was determined from XRD analysis. Water uptake results indicated that a sulfonation time of 7h produced maximum water uptake value of about 20%, with a corresponding IEC and proton conductivity values of about 0.42meqg−1 and 0.00375Scm−1 respectively. The maximum current density was recorded to be 30mAcm−2 at 0.2V potential.

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  • Das, Suparna & Kumar, Piyush & Dutta, Kingshuk & Kundu, Patit Paban, 2014. "Partial sulfonation of PVdF-co-HFP: A preliminary study and characterization for application in direct methanol fuel cell," Applied Energy, Elsevier, vol. 113(C), pages 169-177.
    • Handle: RePEc:eee:appene:v:113:y:2014:i:c:p:169-177
    DOI: 10.1016/j.apenergy.2013.07.030
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    1. Seo, Sang Hern & Lee, Chang Sik, 2010. "A study on the overall efficiency of direct methanol fuel cell by methanol crossover current," Applied Energy, Elsevier, vol. 87(8), pages 2597-2604, August.
    2. Wang, Yun & Chen, Ken S. & Mishler, Jeffrey & Cho, Sung Chan & Adroher, Xavier Cordobes, 2011. "A review of polymer electrolyte membrane fuel cells: Technology, applications, and needs on fundamental research," Applied Energy, Elsevier, vol. 88(4), pages 981-1007, April.
    3. Zhang, Hao & Xuan, Jin & Xu, Hong & Leung, Michael K.H. & Leung, Dennis Y.C. & Zhang, Li & Wang, Huizhi & Wang, Lei, 2013. "Enabling high-concentrated fuel operation of fuel cells with microfluidic principles: A feasibility study," Applied Energy, Elsevier, vol. 112(C), pages 1131-1137.
    4. Wu, Q.X. & Zhao, T.S. & Chen, R. & An, L., 2013. "A sandwich structured membrane for direct methanol fuel cells operating with neat methanol," Applied Energy, Elsevier, vol. 106(C), pages 301-306.
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    Cited by:

    1. Dutta, Kingshuk & Das, Suparna & Kumar, Piyush & Kundu, Patit Paban, 2014. "Polymer electrolyte membrane with high selectivity ratio for direct methanol fuel cells: A preliminary study based on blends of partially sulfonated polymers polyaniline and PVdF-co-HFP," Applied Energy, Elsevier, vol. 118(C), pages 183-191.
    2. Kumar, Vikash & Nandy, Arpita & Das, Suparna & Salahuddin, M. & Kundu, Patit P., 2015. "Performance assessment of partially sulfonated PVdF-co-HFP as polymer electrolyte membranes in single chambered microbial fuel cells," Applied Energy, Elsevier, vol. 137(C), pages 310-321.
    3. Kumar, Piyush & Dutta, Kingshuk & Das, Suparna & Kundu, Patit Paban, 2014. "Membrane prepared by incorporation of crosslinked sulfonated polystyrene in the blend of PVdF-co-HFP/Nafion: A preliminary evaluation for application in DMFC," Applied Energy, Elsevier, vol. 123(C), pages 66-74.
    4. Zainoodin, A.M. & Kamarudin, S.K. & Masdar, M.S. & Daud, W.R.W. & Mohamad, A.B. & Sahari, J., 2014. "Investigation of MEA degradation in a passive direct methanol fuel cell under different modes of operation," Applied Energy, Elsevier, vol. 135(C), pages 364-372.
    5. Chen, Qing-Yun & Fu, Rong & Fang, Xiao-Wen & Cai, Wen-Fang & Wang, Yun-Hai & Cheng, Shao-An, 2015. "Cr-methanol fuel cell for efficient Cr(VI) removal and high power production," Applied Energy, Elsevier, vol. 138(C), pages 31-35.
    6. Kim, Joon-Hee & Yang, Min-Jee & Park, Jun-Young, 2014. "Improvement on performance and efficiency of direct methanol fuel cells using hydrocarbon-based membrane electrode assembly," Applied Energy, Elsevier, vol. 115(C), pages 95-102.
    7. Uma Devi, A. & Muthumeenal, A. & Sabarathinam, R.M. & Nagendran, A., 2017. "Fabrication and electrochemical properties of SPVdF-co-HFP/SPES blend proton exchange membranes for direct methanol fuel cells," Renewable Energy, Elsevier, vol. 102(PA), pages 258-265.

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