Novel proton exchange membranes based on proton conductive sulfonated PAMPS/PSSA-TiO2 hybrid nanoparticles and sulfonated poly (ether ether ketone) for PEMFC

Add time:09/10/2019    Source:sciencedirect.com

Nanocomposite membranes based on sulfonated poly (ether ether ketone) (SPEEK) and sulfonated core-shell TiO2 nanoparticles were prepared. TiO2 nanoparticles were sulfonated by redox polymerization method by using sodium styrene sulfonate (SSA) and 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) monomers. The resultant hybrid nanoparticles (PAMPS-gTiO2 and PSSA-g-TiO2) were introduced to SPEEK with a sulfonation degree of 68%. Grafting of sulfonated polymers onto TiO2 nanoparticles enhanced the content of proton transport sites in the membrane, leading to an increase in proton conductivity and power density. Besides, the mechanical and dimensional stabilities of the nanocomposite membranes were also improved compared with pure SPEEK membrane. The maximum power density for membranes containing 7.5 wt% of PAMPS-gTiO2 and PSSA-g-TiO2 nanoparticles at 80 °C obtained 283 mW cm−2 and 245 mW cm−2, respectively.

We also recommend Trading Suppliers and Manufacturers of 4-toluene sulfonate (cas 16722-51-3). Pls Click Website Link as below: cas 16722-51-3 suppliers

Prev:Production of furfural from xylose and hemicelluloses using tin-loaded sulfonated diatomite as solid acid catalyst in biphasic system
Next:Enhancement in proton conductivity and methanol cross-over resistance by sulfonated boron nitride composite sulfonated poly (ether ether ketone) proton exchange membrane)