Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
190891 | Electrochimica Acta | 2010 | 7 Pages |
Abstract
A simplified, miniaturized polymer electrolyte fuel cell without gas diffusion layers was investigated under operation by neutron radiography. By visualizing liquid water, it was possible to identify limiting effects, which are directly related to the simplified construction principle. Depending on the operation conditions, undesired water accumulation either in particular micro-channels or on the cathode catalyst layer as well as drying of the anode catalyst layer was observed. As a consequence, the design of a fuel cell without gas diffusion layers must take into account these limitations visualized by neutron radiography.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Bernhard C. Seyfang, Pierre Boillat, Franziska Simmen, Stefan Hartmann, Gabriel Frei, Thomas Lippert, Günther G. Scherer, Alexander Wokaun,