EB-crosslinked Polymer Electrolyte Membranes Based on Highly Sulfonated Poly(ether ether ketone) and Poly(vinylidene fluoride)/Triallyl Isocyanurate

Title
EB-crosslinked Polymer Electrolyte Membranes Based on Highly Sulfonated Poly(ether ether ketone) and Poly(vinylidene fluoride)/Triallyl Isocyanurate
Authors
이영무
Keywords
Crosslinking; Electron Beam Irradiation; Fuel Cell; Ionic Conductivity; Membrane; PEMFC; PVDF; SPEEK
Issue Date
2015-07
Publisher
WILEY-V C H VERLAG GMBH
Citation
FUEL CELLS, v. 15, NO 6, Page. 781-789
Abstract
In this study, crosslinked polymer electrolyte membranes for polymer electrolyte membrane fuel cell (PEMFC) applications are prepared using electron beam irradiation with a mixture of sulfonated poly(ether ether ketone) (SPEEK), poly(vinylidene fluoride) (PVDF), and triallyl isocyanurate (TAIC) at a dose of 300 kGy. The gel-fraction of the irradiated SPEEK/PVDF/TAIC (95/4.5/0.5) membrane is 87% while the unirradiated membrane completely dissolves in DMAc solvent. In addition, the water uptake of the irradiated membrane is 221% at 70 degrees C while that of the unirradiated membrane completely dissolves in water at above 70 degrees C. The ion exchange capacity and proton conductivity of the crosslinked membrane are 1.57 meq g(-1), and 4.0 x 10(-2) S cm(-1) (at 80 degrees C and RH 90%), respectively. Furthermore, a morphology study of the membranes is conducted using differential scanning calorimetry and X-ray diffractometry. The cell performance study with the crosslinked membrane demonstrates that the maximum power density is 518 mW cm(-2) at 1036 mA cm(-2) and the maximum current density at applied voltage of 0.4 V is 1190 mA cm(-2).
URI
http://onlinelibrary.wiley.com/doi/10.1002/fuce.201500091/abstracthttp://hdl.handle.net/20.500.11754/26223
ISSN
1615-6846; 1615-6854
DOI
http://dx.doi.org/10.1002/fuce.201500091
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > DEPARTMENT OF ENERGY ENGINEERING(에너지공학과) > Articles
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