Silica-embedded hydrogel nanofiller for enhancing low humidity proton conduction of a hydrocarbon-based polymer electrolyte membrane

Poor proton conduction at low relative humidity (RH) remains a challenge for adopting hydrocarbon (HC) membranes for polymer electrolyte membrane fuel cells (PEMFCs). Here, we report a silica-embedded hydrogel (HG-silica) nanofiller as a water reservoir for improving the performance of the HC membrane under low RH conditions. The incorporation of HG-silica into a sulfonated poly(arylene ether ketone) (SPAEK) membrane increases the proton conductivity at a low RH by an order of magnitude. The power performance under low RH conditions is also improved with the addition of HG-silica to the SPAEK membrane. Therefore, a properlystructured hydrogel nanofiller can provide a way to improve the PEMFC performance under low RH conditions.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2017-12
Language
English
Keywords

POLY(ETHER ETHER KETONE); HIGH MECHANICAL STRENGTH; FUEL-CELL APPLICATIONS; COMPOSITE MEMBRANES; EXCHANGE MEMBRANE; NANOCOMPOSITE MEMBRANES; SEPARATION MEMBRANES; PEMFC APPLICATIONS; GRAPHENE OXIDE; GAS SEPARATION

Citation

JOURNAL OF MEMBRANE SCIENCE, v.543, pp.106 - 113

ISSN
0376-7388
DOI
10.1016/j.memsci.2017.08.052
URI
http://hdl.handle.net/10203/226380
Appears in Collection
CBE-Journal Papers(저널논문)
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