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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/20402
Title: Composite membrane of sulfonated polybenzimidazole and sulfonated graphene oxide for potential application in microbial fuel cell
Authors: Mondal S.
Papiya F.
Ash S.N.
Kundu, Patit Paban
Published in: Journal of Environmental Chemical Engineering
Abstract: In this study, various composite membranes consisting of sulfonated polybenzimidazole (SPBI) and varying amounts of sulfonated graphene oxide (SGO) were synthesized with an aim for their potential application in microbial fuel cells (MFCs). SPBI is prepared from PBI by reacting it with 2-chloro ethane sulfonic acid and the structure of SPBI is confirmed by proton nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy and X ray diffraction analysis. The proton conductivity, ion exchange capacity (IEC) and tensile modulus of the composites increase with the higher content of SGO in SPBI. Membranes with 3% and 5% SGO content exhibit superior IECs (0.912 and 1.001 meqg 1) and proton conductivity (0.016 and 0.018 S cm-1) at room temperature. The enhancement of these properties is owing to the increasing content of SO3H groups in the SGO/SPBI composite, increasing the channel availability for the transport of protons. Amongst the three composite membranes (1%, 3% and 5% of SGO in SPBI), the 3% SGO/SPBI composite membrane showed the highest open-circuit voltage of 669 ± 18 mV, when applied in an MFC. Furthermore, the application of the nanocomposite membrane (3% SGO/SBI) in MFC showed a power density of 472.46 mWm 2 at a potential value of 0.234 V which was equivalent to 98.16% of Nafion membrane (481.3 mWm 2). Thus, the newly developed SGO/SPBI composite membranes have the potential for application in MFC. © 2020 Elsevier Ltd.
Citation: Journal of Environmental Chemical Engineering, 9(1)
URI: https://doi.org/10.1016/j.jece.2020.104945
http://repository.iitr.ac.in/handle/123456789/20402
Issue Date: 2021
Publisher: Elsevier Ltd
Keywords: Composite membrane
MFC
Polymer electrolyte membrane
Sulfonated graphene oxide
Sulfonated polybenzimidazole
ISSN: 22133437
Author Scopus IDs: 56397627900
57195774457
57224602608
35475516300
Author Affiliations: Mondal, S., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
Papiya, F., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
Ash, S.N., Department of Chemical Engineering, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
Kundu, P.P., Advanced Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India, Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
Funding Details: SM is gratefully acknowledged to TEQUIP (PHASE ̶ II) for providing a junior research assistantship (JRA). FP is grateful to University Grant Commission ( UGC ), Govt. of India for Senior Research Fellowship [Sr. No. 061310272 , Ref. No. 23/06/2013 (i)EU ̶ V]. University Grants Commission, UGC; University Grants Committee, UGC
Corresponding Author: Kundu, P.P.; Advanced Polymer Laboratory, 92, A. P. C. Road, India; email: patit.kundu@ch.iitr.ac.in Kundu, P.P.; Department of Chemical Engineering, India; email: patit.kundu@ch.iitr.ac.in
Appears in Collections:Journal Publications [CH]

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