A polytetrafluoroethylene-quaternary 1,4-diazabicyclo-[2.2.2]-octane polysulfone composite membrane for alkaline anion exchange membrane fuel cells
A polytetrafluoroethylene-quaternary 1,4-diazabicyclo-[2.2.2]-octane polysulfone composite membrane for alkaline anion exchange membrane fuel cells
The quaternary 1,4-diazabicyclo-[2.2.2]-octane (DABCO) polysulfone (QDPSU) was synthesised. A thin (30 μm) composite membrane based on polytetrafluoroethylene (PTFE) and QDPSU was obtained by impregnation method of QDPSU solution in PTFE support. SEM images revealed a dense and homogenous structure of PTFE-QDPSU membrane. The PTFE-QDPSU composite membrane showed good mechanical strength (a 32 MPa maximum load), and a water uptake of 61 ± 3% and a 17 ± 2% swelling degree. An ionic conductivity of 0.051 S cm-1 was achieved at 50 °C and 100% RH. Preliminary data of a single MEA gave power outputs of 146 and 103 mW cm-2 with oxygen and air respectively.
Alkaline anion exchange membrane, Composite membrane, Fuel cell, PTFE, Quaternary DABCO polysulfone
10022-10026
Wang, X.
d0b1d71b-69f1-4b71-ae6c-450002daeedd
Li, M.
39d9aa30-d8cf-4d69-961f-bf24d161bdfb
Golding, B.T.
32fe7fbd-7167-4230-8b78-3435fc55a215
Sadeghi, M.
0336904c-8524-430b-a601-4a9ff5904081
Cao, Y.
c3d62df4-9d48-4791-9cda-3e7d0363678a
Yu, E.H.
28e47863-4b50-4821-b80b-71fb5a2edef2
Scott, K.
d3e0ec37-b693-49b8-b313-8c13f259e9dd
August 2011
Wang, X.
d0b1d71b-69f1-4b71-ae6c-450002daeedd
Li, M.
39d9aa30-d8cf-4d69-961f-bf24d161bdfb
Golding, B.T.
32fe7fbd-7167-4230-8b78-3435fc55a215
Sadeghi, M.
0336904c-8524-430b-a601-4a9ff5904081
Cao, Y.
c3d62df4-9d48-4791-9cda-3e7d0363678a
Yu, E.H.
28e47863-4b50-4821-b80b-71fb5a2edef2
Scott, K.
d3e0ec37-b693-49b8-b313-8c13f259e9dd
Wang, X., Li, M., Golding, B.T., Sadeghi, M., Cao, Y., Yu, E.H. and Scott, K.
(2011)
A polytetrafluoroethylene-quaternary 1,4-diazabicyclo-[2.2.2]-octane polysulfone composite membrane for alkaline anion exchange membrane fuel cells.
International Journal of Hydrogen Energy, 36 (16), .
(doi:10.1016/j.ijhydene.2011.05.054).
Abstract
The quaternary 1,4-diazabicyclo-[2.2.2]-octane (DABCO) polysulfone (QDPSU) was synthesised. A thin (30 μm) composite membrane based on polytetrafluoroethylene (PTFE) and QDPSU was obtained by impregnation method of QDPSU solution in PTFE support. SEM images revealed a dense and homogenous structure of PTFE-QDPSU membrane. The PTFE-QDPSU composite membrane showed good mechanical strength (a 32 MPa maximum load), and a water uptake of 61 ± 3% and a 17 ± 2% swelling degree. An ionic conductivity of 0.051 S cm-1 was achieved at 50 °C and 100% RH. Preliminary data of a single MEA gave power outputs of 146 and 103 mW cm-2 with oxygen and air respectively.
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Published date: August 2011
Keywords:
Alkaline anion exchange membrane, Composite membrane, Fuel cell, PTFE, Quaternary DABCO polysulfone
Identifiers
Local EPrints ID: 498541
URI: http://eprints.soton.ac.uk/id/eprint/498541
ISSN: 0360-3199
PURE UUID: c9602c78-78ba-4d24-8211-c7e1b0076bba
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Date deposited: 20 Feb 2025 18:13
Last modified: 09 Sep 2025 02:19
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Contributors
Author:
X. Wang
Author:
M. Li
Author:
B.T. Golding
Author:
M. Sadeghi
Author:
Y. Cao
Author:
E.H. Yu
Author:
K. Scott
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