Nafion/polyaniline composite membranes specifically designed to allow proton exchange membrane fuel cells operation at low humidity
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Yang, JY, Shen, PK, Varcoe, J and Wei, ZD (2009) Nafion/polyaniline composite membranes specifically designed to allow proton exchange membrane fuel cells operation at low humidity J POWER SOURCES, 189 (2). pp. 1016-1019.
Full text not available from this repository.Abstract
A Nafion and polyaniline composite membrane (designated Nafion/PANI) was fabricated using an in situ chemical polymerization method. The composite membrane showed a proton conductivity that was superior to that obtained with Nafion (R) 112 at low humidity (e.g. RH=60%). Water uptake measurements revealed similarities between the Nafion (R) 112 and Nafion/PANI membranes at different humidities. The high conductivity of the Nafion/PANI membrane at low humidity is hypothesized to be due to the existence of the extended conjugated bonds in the polyaniline; proton transfer is facilitated via the conjugated bonds in lower humidity environments allowing retention of the relatively high conductivity. Correspondingly, the performance of a single cell fuel cell containing the Naflon/PANI composite membrane is improved compared to a Nafion (R) 112-containing cell under low humidity conditions. This is important for portable fuel cells, which are required to operate without external humidification. (C) 2008 Elsevier B.V. All rights reserved.
| Item Type: | Article | |||||||||||||||
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| Divisions : | Surrey research (other units) | |||||||||||||||
| Authors : |
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| Date : | 15 April 2009 | |||||||||||||||
| DOI : | 10.1016/j.jpowsour.2008.12.076 | |||||||||||||||
| Uncontrolled Keywords : | Proton exchange membrane, Fuel cells, Conductivity, Polyaniline, Humidity, TRANSPORT-PROPERTIES, POLYANILINE, CONDUCTIVITY, ACID, POLYMERIZATION, ELECTROLYTE, PERFORMANCE, MATRIX, NAFION | |||||||||||||||
| Depositing User : | Symplectic Elements | |||||||||||||||
| Date Deposited : | 17 May 2017 11:17 | |||||||||||||||
| Last Modified : | 24 Jan 2020 20:38 | |||||||||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/830750 |
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