6533b7d2fe1ef96bd125e96d

RESEARCH PRODUCT

Double cross-linked polyetheretherketone proton exchange membrane for fuel cell

Guntars VaivarsHongze LuoMkhulu Mathe

subject

Renewable Energy Sustainability and the EnvironmentChemistryInorganic chemistryEnergy Engineering and Power TechnologyProton exchange membrane fuel cellElectrolyteConductivityCondensed Matter Physicschemistry.chemical_compoundDirect methanol fuel cellFuel TechnologyMembraneNafionThermal stabilityMethanol

description

Abstract The proton exchange membrane based on polyetheretherketone was prepared via two steps of cross-linking. The properties of the double cross-linked membrane (water uptake, proton conductivity, methanol permeability and thermal stability) have been investigated for fuel cell applications. The prepared membrane exhibited relatively high proton conductivity, 3.2 × 10 −2  S cm −1 at room temperature and 5.8 × 10 −2  S cm −1 at 80 °C. The second cross-linking significantly decreased the water uptake of the membrane. The performance of direct methanol fuel cell was slightly improved as compared to Nafion ® 117 due to its low methanol permeability. The results indicated that the double cross-linked membrane is a promising candidate for the polymer electrolyte membrane fuel cell, especially for the direct methanol fuel cell due to its low methanol permeability and high stability in a methanol solution.

https://doi.org/10.1016/j.ijhydene.2011.05.115