Proton conductivity performance and its correlation with physiochemical properties of proton exchange membrane(PEM)  

作　　者：Mirza Nusrat Sweety Md Abdus Salam 

机构地区：[1]Hydrogen Energy Laboratory,Bangladesh Council of Scientific and Industrial Research(BCSIR),Chattogram 4220,Bangladesh [2]Institute of Mining,Mineralogy and Metallurgy(IMMM),BCSIR,Joypurhat 5900,Bangladesh [3]BCSIR Dhaka Laboratories,Dhaka 1205,Bangladesh

出　　处：《Chinese Journal of Chemical Engineering》2024年第10期100-116,共17页中国化学工程学报（英文版）

摘　　要：Graphene oxide(GO)filler containing diversified Nafion-based proton exchange membrane(PEM)is studied to know the unique physical and chemical properties and performances of PEM.Nafion-SPEEK 1%-GO 0.75%(NSG-0.75%)composite shows the highest proton conductivity of 0.327 S·cm^(-1) at 90℃ and 100%RH(relative humidity)among all the PEM investigated.The descending order of significant proton conductivity is found as;Nafion-sPGO(1%)0.306 S·cm^(-1)>Nafion/ZIF-8@GO 0.280 S·cm^(-1)>Nafion/PGO(2%)0.277 S·cm^(-1)>Nafion/GO-sulfur(3%)0.232 S·cm^(-1)>Nafion/GO-poly-SPM-co-PEGMEMA(1%)0.229 S·cm^(-1)>Nafion/Ce-sPGO(1%)0.215 S·cm^(-1).The proton conductivity,water uptake capacity and ion exchange capacity,hydration number,thermal and oxidative stability,mechanical integrity(tensile strength),maximum power,and current density are found to be increased while activation energy and fuel crossover show a decrement as GO or modified GO is incorporated in the Nafion matrix.Principal component analysis(PCA)predicted a significant correlation between the proton conductivity and the properties;the water uptake capacity,ion exchange capacity,hydration number,maximum power density,and maximum current density are 0.598%,0.688%,0.894%,0.980%,and 0.852%accordingly.A multiple linear model equation of proton conductivity is defined with the parameters of water uptake capacity,ion exchange capacity,hydration number,maximum power density,and maximum current density whereas the regression coefficient is 0.9923.

关 键 词：Fuel cells Membranes NAFION GO-filler Proton conductivity Principal component analysis 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TB383.2[一般工业技术—材料科学与工程]