Characteristics of the Nafion ®-impregnated polycarbonate composite membranes for PEMFCs

In this work, polycarbonate composite membranes were prepared for proton exchange membrane fuel cells (PEMFCs). In the preparation of membranes, a small amount of poly(ethylene glycol) (PEG) was blended with polycarbonate (PC) solution and then cast to make membranes. PEG contained in the membrane w...

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Bibliographic Details
Published in:Electrochimica acta 2004-11, Vol.50 (2), p.577-581
Main Authors: Kim, Ki-Hwan, Ahn, Sang-Yeoul, Oh, In-Hwan, Ha, Heung Yong, Hong, Seong-Ahn, Kim, Moon-Sun, Lee, Youngkwan, Lee, Yong-Chul
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Composite membrane
Corrosion
Corrosion mechanisms
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrochemistry
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
General and physical chemistry
Metals. Metallurgy
Nafion
Polycarbonate
Proton exchange membrane fuel cells
Supercritical CO 2
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Summary:In this work, polycarbonate composite membranes were prepared for proton exchange membrane fuel cells (PEMFCs). In the preparation of membranes, a small amount of poly(ethylene glycol) (PEG) was blended with polycarbonate (PC) solution and then cast to make membranes. PEG contained in the membrane was removed by the high solubility of supercritical CO 2 to afford porosity in the membrane. Then, porous PC membranes were soaked in Nafion ® solution to yield the PC/Nafion ® composite membranes. The PC composite membrane had lower ion conductivity but higher conductance than Nafion ®.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2004.03.051