Polymer electrolyte fuel cell performance degradation at different synchrotron beam intensities

The dependency of beam intensity on the performance degradation of polymer electrolyte fuel cells during X-ray imaging experiments at the Tomcat beamline of the Swiss Light Source is reported and the underlying degradation mechanisms are identified.

Quantifying phosphoric acid in high-temperature polymer electrolyte fuel cell components by X-ray tomographic microscopy

The methodology for applying propagation-based phase contrast imaging on high-temperature polymer electrolyte fuel cells for quantification of phosphoric acid in the different fuel cell components is described.