Imidazole/(HPO3)3‐doped sulfonated poly (ether ether ketone) composite membrane for fuel cells |
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| Authors: | Shaoying Liu Yingying Liu Shangbin Sang Wenjie Zhong Qiumei Wu |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Central South University, Changsha City, People's Republic of China;2. Key State Laboratory of Power Metallurgy, Powder Metallurgy Research Institute, Central South University, Changsha, People's Republic of China |
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| Abstract: | A novel gel of imidazole/(HPO3)3 was synthesized and incorporated into sulfonated poly (ether ether ketone) (SPEEK) to fabricate composite proton exchange membranes. The composite membranes were characterized by alternating current impedance (AC), thermogravimetry (TG), differential scanning calorimetry (DSC), X‐ray diffraction (XRD), scanning electron microscope (SEM) and mechanical property test. Based on the electrochemical performance investigation, the proton conductivity of the membrane is intimately correlated with the temperature and the mass ratio of imidazole/(HPO3)3 in the composite. The SPEEK/imidazole/(HPO3)3?4 composite membrane (with 44.4 wt % of imidazole/(HPO3)3) has the optimized performance at 135°C. Mover, the strength of the composite membranes is almost comparable to that of Nafion membrane. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 41946. |
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| Keywords: | batteries and fuel cells blends composites membranes |
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