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Sulfonated polyvinylidene fluoride and functional copolymer based blend proton exchange membrane for fuel cell application and studies on methanol crossover

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  • Pal, Sandip
  • Mondal, Rakhi
  • Chatterjee, Uma

Abstract

Copolymers of poly(methyl methacrylate)-co-poly (2-acrylamido-2-methyl-1-propane sulfonic acid (PMMA-co-PAMPS) have been prepared via radical polymerization with different MMA to AMPS mol ratio and blended with polyvinylidene fluoride (PVDF) and sulfonated PVDF (S-PVDF) in a different weight ratio to prepare proton exchange membranes (PEMs) by simple solution casting method for fuel cells application (PEMFCs). Five different PEMs have been prepared from only PMMA-co-PAMPS, blending PMMA-co-PAMPS with PVDF, and also by blending PMMA-co-PAMPS with S-PVDF to get the suitable membrane for PEMFCs application. We have also studied the effect of PVDF and S-PVDF in the blend membranes on the water uptake, mechanical stability, thermal stability, proton conductivity (Km), and methanol permeability (PM) properties. PEMs prepared by blending with S-PVDF exhibited high Km and low PM value. PEM-5 membrane prepared by blending S-PVDF with PMMA-co-PAMPS (30:70 w/w) exhibited Km at room temperature 5.7 × 10−2 S/cm, PM value 5.24 × 10−7 cm2/s and maximum power density 477 mW/cm2. This PM value is much lower than that of the Nafion® 117 membrane (22 × 10−7 cm2/s). This low PM, high Km and high selectivity make the S-PVDF blend membranes a good candidate in PEMFCs or direct methanol fuel cells (DMFCs) application.

Suggested Citation

  • Pal, Sandip & Mondal, Rakhi & Chatterjee, Uma, 2021. "Sulfonated polyvinylidene fluoride and functional copolymer based blend proton exchange membrane for fuel cell application and studies on methanol crossover," Renewable Energy, Elsevier, vol. 170(C), pages 974-984.
    • Handle: RePEc:eee:renene:v:170:y:2021:i:c:p:974-984
    DOI: 10.1016/j.renene.2021.02.046
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    Cited by:

    1. Li Guan & Prabhuraj Balakrishnan & Huiyuan Liu & Weiqi Zhang & Yilin Deng & Huaneng Su & Lei Xing & Željko Penga & Qian Xu, 2022. "A Tortuosity Engineered Dual-Microporous Layer Electrode Including Graphene Aerogel Enabling Largely Improved Direct Methanol Fuel Cell Performance with High-Concentration Fuel," Energies, MDPI, vol. 15(24), pages 1-14, December.
    2. Shi, Ting & Peng, Xueyuan & Feng, Jianmei & Guo, Yi & Wang, Bingsheng, 2024. "Study on the startup-shutdown performance of gas foil bearings-rotor system in proton exchange membrane fuel cells," Renewable Energy, Elsevier, vol. 226(C).

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