The ionic conductivity of a Nafion® 1100 series of
proton-exchange membranes re-cast from butan-1-ol and propan-2-ol
The ionic conductivity of a Nafion® 1100 series of
proton-exchange membranes re-cast from butan-1-ol and propan-2-ol
The ionic conductivity of Nafion® 1100 extruded membranes re-cast from solutions of butan-1-ol and propan-2-ol is measured in 0.5 mol dm-3 H2SO4 at 295 K, using an immersed, four-electrode d.c. technique. The general trend is an increasing conductivity for the thicker membranes. Materials which were solution-cast from butan-1-ol yielded the highest conductivity while a series of membranes with lower conductivities (similar to those of an extruded Nafion® 1100 series of membranes) was found using propan-2-ol. The conductivity results indicate that membranes manufactured by extrusion and casting from various solvents might have different structures. Differences in the water content and conductivity of the membranes are considered to arise from the impact of processing conditions on the surface and bulk structure of the membranes.
area conductance, butan-1-ol, ion exchange membrane, nafion® ionomer, perfluorinated polymer, proton exchange membrane, propan-2-ol, resistance, solution-cast
Slade, S.M
25d7e55a-eccd-4ad3-8173-e3e44c011f63
Ralph, Tom
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Ponce de Leon, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Campbell, S.A.
55dce777-106e-402d-bac9-8f407e7c4ada
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
17 March 2010
Slade, S.M
25d7e55a-eccd-4ad3-8173-e3e44c011f63
Ralph, Tom
7fe3cfc6-47c2-4ec1-8a07-14dcc8d87503
Ponce de Leon, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Campbell, S.A.
55dce777-106e-402d-bac9-8f407e7c4ada
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
Slade, S.M, Ralph, Tom, Ponce de Leon, Carlos, Campbell, S.A. and Walsh, F.C.
(2010)
The ionic conductivity of a Nafion® 1100 series of
proton-exchange membranes re-cast from butan-1-ol and propan-2-ol.
Fuel Cells.
(doi:10.1002/fuce.200900118).
Abstract
The ionic conductivity of Nafion® 1100 extruded membranes re-cast from solutions of butan-1-ol and propan-2-ol is measured in 0.5 mol dm-3 H2SO4 at 295 K, using an immersed, four-electrode d.c. technique. The general trend is an increasing conductivity for the thicker membranes. Materials which were solution-cast from butan-1-ol yielded the highest conductivity while a series of membranes with lower conductivities (similar to those of an extruded Nafion® 1100 series of membranes) was found using propan-2-ol. The conductivity results indicate that membranes manufactured by extrusion and casting from various solvents might have different structures. Differences in the water content and conductivity of the membranes are considered to arise from the impact of processing conditions on the surface and bulk structure of the membranes.
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200900118.pdf
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Published date: 17 March 2010
Keywords:
area conductance, butan-1-ol, ion exchange membrane, nafion® ionomer, perfluorinated polymer, proton exchange membrane, propan-2-ol, resistance, solution-cast
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 156455
URI: http://eprints.soton.ac.uk/id/eprint/156455
PURE UUID: 3d8b1feb-dd0b-493b-a876-dd6e6801626d
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Date deposited: 02 Jun 2010 12:01
Last modified: 14 Mar 2024 02:50
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Author:
S.M Slade
Author:
Tom Ralph
Author:
S.A. Campbell
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