http://repository.iitr.ac.in/handle/123456789/2283| Title: | Partial sulfonation of PVdF-co-HFP: A preliminary study and characterization for application in direct methanol fuel cell |
| Authors: | Das S. Kumar P. Dutta K. Kundu, Patit Paban |
| Published in: | Applied Energy |
| 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. © 2013 Elsevier Ltd. |
| Citation: | Applied Energy (2014), 113(): 169-177 |
| URI: | https://doi.org/10.1016/j.apenergy.2013.07.030 http://repository.iitr.ac.in/handle/123456789/2283 |
| Issue Date: | 2014 |
| Publisher: | Elsevier Ltd |
| Keywords: | Direct methanol fuel cell Ion exchange capacity Polymer electrolyte membrane PVdF-co-HFP Sulfonation |
| ISSN: | 3062619 |
| Author Scopus IDs: | 55820818900 55642355800 7005115695 35475516300 |
| Author Affiliations: | Das, S., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India Kumar, P., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India Dutta, K., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India Kundu, P.P., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India |
| Funding Details: | PPK is thankful to the Ministry of New Renewable Energy (MNRE, GOI) for a grant-in-aid and Department of Science and Technology (DST, GOI) for providing the INSPIRE fellowship to PK, and to the Council of Scientific and Industrial Research (CSIR, India) for a fellowship to SD. KD is thankful to the CSIR for providing the Senior Research Fellowship. Appendix A |
| Corresponding Author: | Kundu, P.P.; Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India; email: ppk923@yahoo.com |
| Appears in Collections: | Journal Publications [CH] |
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