6533b853fe1ef96bd12ad775

RESEARCH PRODUCT

A Covalently Cross-linked Polyetheretherketone Proton Exchange Membrane for DMFC

Guntars VaivarsHongze LuoMkhulu MatheMmalewane Modibedi

subject

chemistry.chemical_compoundDirect methanol fuel cellMembranechemistryChemical engineeringCovalent bondPermeability (electromagnetism)Polymer chemistryProton exchange membrane fuel cellMethanolConductivityElectrochemistry

description

The proton exchange membrane was prepared by covalent cross-linking sulfonated-sulfinated polyetheretherketone. The cross-linked membrane showed high proton conductivity (0.04 S/cm) with suitable water uptake, low methanol permeability (2.21 × 10-7 cm2/s) and good electrochemical stability. The results suggested that cross-linked polyetheretherketone membrane is particularly promising to be used as proton exchange membrane for the direct methanol fuel cell application.

https://doi.org/10.1149/ma2009-01/6/334