Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8960301 | Journal of Membrane Science | 2018 | 30 Pages |
Abstract
Nanocomposite membranes were prepared using sulfonated polyhedral oligomeric silsesquioxane (POSS-SA) and incorporated into sulfonated polyetheretherketone (sPEEK) for their use in polymer electrolyte membrane fuel cells. The POSS-SA concentration was varied to investigate its effect on the nanostructure morphology, mechanical properties, proton conductivities, and cell performance of nanocomposite membranes. Acidic POSS-SA served as a proton donor to sPEEK and increased the sPEEK nanochannel dimensions by 23%, leading to enhanced proton conductivities and cell performance. The highest conductivity and current density at 0.6â¯V were 0.097â¯S/cm and 0.97â¯A/cm2, respectively, for 1.5â¯wt% of POSS-SA.154
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Authors
Sang-Woo Kim, Seung-Young Choi, Hee-Woo Rhee,