Investigation of 3D water transport paths in gas diffusion layers by combined in-situ synchrotron X-ray radiography and tomography

Autor: Merle Klages, Heinrich Riesemeier, Joachim Scholta, Ingo Manke, Jan Haussmann, Tobias Arlt, Henning Markötter, John Banhart, Ph. Krüger, Ch. Hartnig
Rok vydání: 2011
Předmět:
Zdroj: Electrochemistry Communications, Vol 13, Iss 9, Pp 1001-1004 (2011)
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2011.06.023
Popis: The three-dimensional water distribution and water transport paths in the gas diffusion layer (GDL) and the adjacent micro-porous layer (MPL) of a polymer electrolyte membrane fuel cell (PEMFC) were analyzed during cell operation. The technique of quasi in-situ X-ray tomography was used for a 3D visualization of the water distribution and the structure of the GDL at different operating conditions. Based on findings from in-situ radiographic measurements water transport paths were detected and subsequently examined by tomography. The combination of these 2D and 3D techniques allows for a fully three-dimensionally resolved visualization of transport paths through the GDL. Keywords: Polymer electrolyte membrane fuel cell (PEMFC), Radiography, Tomography, Synchrotron X-ray imaging, Gas diffusion layer (GDL), Water transport paths
Databáze: OpenAIRE
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