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dc.contributor.authorDutta K.-
dc.contributor.authorDas S.-
dc.contributor.authorKundu, Patit Paban-
dc.date.accessioned2020-10-06T14:08:53Z-
dc.date.available2020-10-06T14:08:53Z-
dc.date.issued2015-
dc.identifier.citationJournal of Membrane Science (2015), 473(): 94-101-
dc.identifier.issn3767388-
dc.identifier.urihttps://doi.org/10.1016/j.memsci.2014.09.010-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/2252-
dc.description.abstractTraditionally used Nafion membranes in direct methanol fuel cells (DMFCs) suffer from high methanol permeabilities, as well as, high material costs; therefore, alternative and more efficient polymer electrolyte membrane (PEM) materials need to be synthesized in order to realize better cell performances. We recently synthesized and reported the use of low cost partially sulfonated polyaniline (SPAni) as a co-constituent along with partially sulfonated poly(vinylidene fluoride-co-hexafluoro propylene) as an effective PEM material. This PEM material exhibited extremely low methanol permeability and very high membrane selectivity. Based on these positive attributes, we demonstrate in this work that blend of Nafion and SPAni can serve as an alternative PEM material; since PEM fabricated using 30wt% of SPAni and 70wt% of Nafion produced selectivity ratios of 7.91×104Sscm-3 (at 20°C) and 1.97×105Sscm-3 (at 60°C), an ion-exchange capacity of 1.2meqg-1 (at 20°C), methanol permeabilities of 9.12×10-8cm2s-1 (at 20°C) and 1.2×10-7cm2s-1 (at 60°C), and a current density of 128.7mAcm-2 at +0.2V and 60°C and a corresponding maximum power density of 25.76mWcm-2 using 6M methanol feed concentration. The cell performance, thus observed, is far better than that produced by pristine Nafion membrane under the same operating conditions. © 2014 Elsevier B.V.-
dc.language.isoen_US-
dc.publisherElsevier B.V.-
dc.relation.ispartofJournal of Membrane Science-
dc.subjectDirect methanol fuel cell-
dc.subjectIon-exchange capacity-
dc.subjectNafion-
dc.subjectPolymer electrolyte membrane-
dc.subjectSulfonated polyaniline-
dc.titlePartially sulfonated polyaniline induced high ion-exchange capacity and selectivity of Nafion membrane for application in direct methanol fuel cells-
dc.typeArticle-
dc.scopusid7005115695-
dc.scopusid55820818900-
dc.scopusid35475516300-
dc.affiliationDutta, K., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata, 700009, India-
dc.affiliationDas, S., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata, 700009, India-
dc.affiliationKundu, P.P., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata, 700009, India-
dc.description.fundingKD would like to thank the Council of Scientific and Industrial Research (CSIR) , India, for a Senior Research Fellowship (Award no. 09/028 (0901)/2012-EMR-I ). PPK is thankful to the Ministry of New and Renewable Energy (MNRE) , Govt. of India, for a grant-in-aid (Grant no. 102/56/2009-NT ). The authors would also like to thank Mr. Sujoy Debnath (University of Calcutta) for carrying out the tensile testing of the membranes. Appendix A-
dc.description.correspondingauthorKundu, P.P.; Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, India-
Appears in Collections:Journal Publications [CH]

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