Surface-modified fibrous membranes for fuel cell application

Low permeability layers of poly(1-vinylimidazole) were polymerised and deposited onto both sides of electrospun polyethersulfone (PES) nanofibrous sheet radiofrequency plasma. The layers not only act as an efficient fuel barrier layer but also impart high and stable proton conductivity, as well as b...

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Bibliographic Details
Published in:E3S Web of Conferences 2019-01, Vol.90, p.1005
Main Authors: Nor Fadzil, Noor Fatina Emelin, Abouzari-Lotf, Ebrahim, Jacob, Mohan V., Che Jusoh, Nurfatehah Wahyuny, Ahmad, Arshad
Format: Article
Language:English
Subjects:
Barrier layers
composite membranes
Conductivity
Dimensional stability
electrospun nanofibres
Fuel cells
Fuel technology
Membrane permeability
Membranes
Organic chemistry
Permeability
plasma
Poly(1-vinyl imidazole)
Polyethersulfones
Polyvinylimidazoles
proton transfer
Protons
Radio frequency
Selectivity
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Summary:Low permeability layers of poly(1-vinylimidazole) were polymerised and deposited onto both sides of electrospun polyethersulfone (PES) nanofibrous sheet radiofrequency plasma. The layers not only act as an efficient fuel barrier layer but also impart high and stable proton conductivity, as well as better chemical and dimensional stabilities. Typically, the composite membrane exhibited methanol permeability as low as 33.20 x 10 -8 cm 2 s -1 and high through-plane proton conductivity of 52.4 mS cm -1 at 95% RH, indicating membrane selectivity of 0.675 x 10 8 mS.s cm -3 , which is approximately 33 times greater than the selectivity of N115 under similar conditions.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/20199001005