Novel High Performance SPES/SCMS and SPEEK/SCMS Composite Membranes for High Temperature H2/O2 PEM Fuel Cells

Abstract

The aim of this work is improving the ionic conductivity mechanical and thermal stability of sPEEK and sPES membranes at high temperatures herein preparing composite membranes using SCMS (solid core mesoporous shell) silica additive. Composite membranes which contains 3 % (w/w) SCMS silica are prepared by solvent casting method using DMAc as solvent. The N2 adsorption results for SCMS silica showed it has mesoporous structure, 386.8 m2/g surface area and 0.41 cc/g pore volume. Spherical geometry with 400 nm particle diameter observed from SEM images. Obtained composite Nafion/SCMS-3 has a thickness of 60 µm. © EFC 2017 - Proceedings of the 7th European Fuel Cell Piero Lunghi Conference.