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Imidazole/(HPO 3 ) 3 ‐doped sulfonated poly (ether ether ketone) composite membrane for fuel cells
Author(s) -
Liu Shaoying,
Liu Yingying,
Sang Shangbin,
Zhong Wenjie,
Wu Qiumei
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.41946
Subject(s) - membrane , differential scanning calorimetry , materials science , imidazole , nafion , ether , polymer chemistry , proton exchange membrane fuel cell , composite number , thermogravimetry , scanning electron microscope , chemical engineering , electrochemistry , composite material , chemistry , organic chemistry , electrode , biochemistry , physics , engineering , thermodynamics
A novel gel of imidazole/(HPO 3 ) 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/(HPO 3 ) 3 in the composite. The SPEEK/imidazole/(HPO 3 ) 3 −4 composite membrane (with 44.4 wt % of imidazole/(HPO 3 ) 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.