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The characteristics and applications of Nafion membranes -An overview

  • Unique Paper ID: 180163
  • Volume: 12
  • Issue: 1
  • PageNo: 245-250
  • Abstract:
  • Nafion membranes, composed of perfluorosulfonic acid (PFSA) polymers, represent a cornerstone material in electrochemical and energy conversion technologies due to their exceptional proton conductivity, thermal stability, and chemical resistance. Their unique structure, featuring a hydrophobic polytetrafluoroethylene (PTFE) backbone and hydrophilic sulfonic acid side chains, facilitates efficient proton transport under hydrated conditions. Nafion is extensively employed in diverse applications such as proton exchange membrane fuel cells (PEMFCs), electrolysis systems, chemical sensors, desalination units, batteries, and catalytic processes. Various Nafion membrane types have been developed to meet specific operational demands, including Nafion 117 (183 µm) for high-durability applications, Nafion 112 (50 µm) for reduced resistance, and Nafion XL for high temperature and low-humidity environments. Other variants like Nafion 211, Nafion D Series, and Nafion 1100 Series offer flexibility in mechanical strength, thickness, and operational stability. Moreover, composite and organic-hybrid Nafion membranes have been engineered to enhance properties such as mechanical strength, gas impermeability, and water retention. Nafion membranes exhibit key physical characteristics such as high ionic conductivity, hydration sensitivity, low gas permeability, and mechanical robustness, along with chemical traits like resistance to oxidation, acid stability, and strong hydrophilicity. These characteristics make Nafion an indispensable material in the development of advanced electrochemical devices, with ongoing innovations focused on improving efficiency, durability, and performance under varied environmental conditions.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 12
  • Issue: 1
  • PageNo: 245-250

The characteristics and applications of Nafion membranes -An overview

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Impact Factor
8.01 (Year 2024)
UGC Approved
Journal no 47859

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