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Surface modification of sulfonated polyethersulfone membrane with polyaniline nanoparticles for application in direct methanol fuel cell

Author

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  • Nagar, Harsha
  • Sahu, Nivedita
  • Basava Rao, V.V.
  • Sridhar, S.

Abstract

A novel polyion nanocomposite membrane was synthesized by doping the surface and matrix of sulfonated polyethersulfone (SPES) with polyaniline (PANi) nanoparticles to facilitate proton conduction in direct methanol fuel cell (DMFC) application. The synthesized membrane exhibited effective, ionic interaction, dense morphology with high thermal stability, adequate tensile strength (60 Mpa) and considerable ion exchange capacity (2.2 meq g−1). The membrane exhibited low methanol permeability of 7.46 × 10−8 cm2s−1 with high proton conductivity (0.098 Scm−1) besides adequate hydrolytic and oxidative stabilities. A maximum power density of 99 mWcm−2 at a current density of 250 mAcm−2 was obtained with a single slice fuel cell setup. Molecular dynamics simulation based on the COMPASS force-field was applied to investigate the influence of PANi nanoparticles, temperature and hydration level on the diffusivity of hydronium ions. Rapid mass transfer of hydronium ions within the PANi incorporated SPES membrane, could be achieved at higher temperatures and hydration levels. Analysis by radial distribution function (RDF) revealed extensive interactions of sulfonic acid groups of SPES and amine groups of PANi with water molecules. The polyion complex membrane was found to exhibit significant prospect of scale-up for potential application in DMFC.

Suggested Citation

  • Nagar, Harsha & Sahu, Nivedita & Basava Rao, V.V. & Sridhar, S., 2020. "Surface modification of sulfonated polyethersulfone membrane with polyaniline nanoparticles for application in direct methanol fuel cell," Renewable Energy, Elsevier, vol. 146(C), pages 1262-1277.
    • Handle: RePEc:eee:renene:v:146:y:2020:i:c:p:1262-1277
    DOI: 10.1016/j.renene.2019.06.175
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    References listed on IDEAS

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    1. Hasani-Sadrabadi, Mohammad Mahdi & Dashtimoghadam, Erfan & Ghaffarian, Seyed Reza & Hasani Sadrabadi, Mohammad Hossein & Heidari, Mahdi & Moaddel, Homayoun, 2010. "Novel high-performance nanocomposite proton exchange membranes based on poly (ether sulfone)," Renewable Energy, Elsevier, vol. 35(1), pages 226-231.
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    Cited by:

    1. Pourzare, K. & Mansourpanah, Y. & Farhadi, S. & Sadrabadi, M.M. Hasani & Ulbricht, M., 2022. "Improvement of proton conductivity of magnetically aligned phosphotungstic acid-decorated cobalt oxide embedded Nafion membrane," Energy, Elsevier, vol. 239(PA).
    2. Simari, C. & Lo Vecchio, C. & Baglio, V. & Nicotera, I., 2020. "Sulfonated polyethersulfone/polyetheretherketone blend as high performing and cost-effective electrolyte membrane for direct methanol fuel cells," Renewable Energy, Elsevier, vol. 159(C), pages 336-345.
    3. Mohammadi, Maryam & Mehdipour-Ataei, Shahram, 2020. "Durable sulfonated partially fluorinated polysulfones as membrane for PEM fuel cell," Renewable Energy, Elsevier, vol. 158(C), pages 421-430.
    4. Nagar, Harsha & Aniya, Vineet & Mondal, Prasenjit, 2020. "High proton conductivity dual modified ionic crosslink membrane for fuel cell application at low humidity condition with molecular dynamics simulations," Renewable Energy, Elsevier, vol. 160(C), pages 1036-1047.
    5. Kusworo, Tutuk Djoko & Widayat, Widayat & Utomo, Dani Puji & Pratama, Yulius Harmawan Setya & Arianti, Riska Anindisa Vira, 2020. "Performance evaluation of modified nanohybrid membrane polyethersulfone-nano ZnO (PES-nano ZnO) using three combination effect of PVP, irradiation of ultraviolet and thermal for biodiesel purification," Renewable Energy, Elsevier, vol. 148(C), pages 935-945.

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