Sulfonated poly(ether ether ketone) and Nafion composite membrane with aluminium oxide additive for fuel cell applications
The changes of physical properties and proton conductivity due to combining two polymers with inorganic compound are studied. Sulfonated poly(ether ether ketone) and Nafion were mixed in proportion 9 to 1; the amount of aluminium oxide nanopowder was 2 wt counted to polymer part. Also, two component membranes were prepared for comparison. Resulting membranes were tested for water uptake and impedance spectra were measured at low relative humidity and 70degC temperature. The highest conductivity measured in this work was obtained for ternary membrane with the value of 7.58 mS/cm.