Composite membranes comprising sulfonated poly (ether ether ketone) (SPEEK) blended with varying proportions of sulfo ethyl cellulose (SEC) at 5 wt% and 10 wt% were fabricated for fuel cell application. The structural, morphological, and
thermal properties of these membranes were investigated using Fourier transform infrared spectroscopy, X-ray difraction, scanning electron microscopy, and thermogravimetric analysis. The composite membranes exhibited enhanced thermal stability and increased water absorption compared to the pristine SPEEK. Moreover, the proton conductivity…Read more