This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1016/j.elecom.2010.08.002 in citations.
In-Situ synchrotron X-ray radiography on high temperature polymer electrolyte fuel cells
In-Situ synchrotron X-ray radiography on high temperature polymer electrolyte fuel cells
In contrast to classical low temperature polymer electrolyte fuel cells (LT-PEFCs), the membrane conductivity in high temperature polymer electrolyte fuel cells (HT-PEFCs) (operating temperature similar to 160 degrees C) is based on proton transport within phosphorus-oxygen acids at different levels...
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Personal Name(s): | Maier, W. |
---|---|
Arlt, T. / Wannek, Ch. / Manke, I. / Reisemeier, H. / Krüger, Ph. / Scholta, J. / Lehnert, W. / Banhardt, J. / Stolten, D. | |
Contributing Institute: |
Technoökonomische Systemanalyse; IEK-3 |
Published in: | Electrochemistry communications, 12 (2010) S. 1436 - 1438 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2010
|
Physical Description: |
1436 - 1438 |
DOI: |
10.1016/j.elecom.2010.08.002 |
Document Type: |
Journal Article |
Research Program: |
Rationelle Energieumwandlung |
Series Title: |
Electrochemistry Communications
12 |
Subject (ZB): | |
Publikationsportal JuSER |
In contrast to classical low temperature polymer electrolyte fuel cells (LT-PEFCs), the membrane conductivity in high temperature polymer electrolyte fuel cells (HT-PEFCs) (operating temperature similar to 160 degrees C) is based on proton transport within phosphorus-oxygen acids at different levels of hydration, orthophosphoric acid (H3PO4) being the simplest example. We present for the first time in-situ synchrotron X-ray radiography measurements applied to a HT-PEFC to gain insight into the local composition of the membrane electrode assembly (MEA) under dynamic operating conditions. Transmission changes during the radiographic measurements exhibit a clear influence of the formation of product water on the membrane composition. (C) 2010 Elsevier B.V. All rights reserved. |