Preparation of polymeric nanocomposite membranes with proton conductivity for fuel cell

New organic–inorganic composite membranes based on sulfonated poly ether sulfone (SPE) for applicationin the direct methanol fuel cell (DMFC) were synthesized. The membranes’ water and methanol water uptake wereevaluated in pervaporation experiments and the conductivity determined by impedance spectroscopy. The absorption ofwater and methanol were decreased by inorganic modification. The first step was generation of SiO2. Modification ofpolymer matrix with modified silanes (CDI and AS) were decreased membranes’ absorption to water and methanolwithout decreasing in proton conductivity.

کلیدواژه ها:

polymer electrolyte membrane ، poly (ether sulfone) ، absorption ، sulfonation