X-ray transparent proton-exchange membrane fuel cell design for in situ wide and small angle scattering tomography
Research output: Contribution to journal › Article
- ESRF-The European Synchrotron
- University of British Columbia
- Finden Ltd.
- University College London
- University of Helsinki
- balticFuelCells GmbH
We have constructed a 5 cm2 proton exchange membrane hydrogen fuel cell optimized for transparency of high energy X-rays. This cell allows for in situ elastic scattering measurements (WAXS, SAXS) during electrochemical operation with minimal trade-offs in cell performance vs benchtop designs, and is capable of reaching automotive current densities. A key feature is that the beam enters the cell at grazing incidence to the electrodes, massively increasing the effective pathlength and therefore the signal-to-background ratio. The 360∘ transparency in the plane of the sample permits imaging coupled with advanced techniques, such as X-ray diffraction computed tomography.
|Journal||Journal of Power Sources|
|Publication status||Published - 15 Oct 2019|
|MoE publication type||A1 Journal article-refereed|
- PEMFC, Tomography, X-ray scattering, XRD-CT