Construction of new transport channels by blending POM-based inorganic-organic complex into sulfonated poly(ether ketone sulfone) for proton exchange membrane fuel cells
writer：Jingmei Xu, Zhenguo Zhang, Wenwen He, Xudong Yang, Zhe Wang et al.
keywords：PEM, MOF, Hybrid membranes
source：期刊
specific source：Journal of Membrane Science
Issue time：2020年
A series of novel hybrid membranes consisted of sulfonated poly(ether ketone sulfone) with carboxyl groups (C-SPAEKS) and POM-based inorganic-organic complex were prepared. The C-SPAEKS was synthesized by polycondensation. The POM-based organic-inorganic complex with proton-conducting ability was constructed by the self-assembly method. The FT-IR, PXRD and 1H NMR were used to verify the structure of POM-based organic-inorganic complex, C-SPAEKS and the hybrid membranes. The hybrid membranes showed good
mechanical properties, excellent folding character and long-term stability. Moreover, the
hybrid membranes had low swelling ratio (≤13%) even at 80 oC. In addition, C-SPAEKS-P15% exhibited the highest proton conductivities (0.048 S cm-1 at 30 oC, 0.099 S cm-1 at 90 oC) and low methanol crossover (5.02×10-7 cm2 s-1). Compared to pure C-SPAEKS, the overall performance of the POM-based-doped hybrid membranes has been improved. The results indicate that the POM-based organic-inorganic complex has great potential to be used as proton-conducting filler in the field of proton exchange membrane.