Martens, I;
Vamvakeros, A;
Chattot, R;
Blanco, MV;
Rasola, M;
Pusa, J;
Jacques, SDM;
... Drnec, J; + view all
(2019)
X-ray transparent proton-exchange membrane fuel cell design for in situ wide and small angle scattering tomography.
Journal of Power Sources
, 437
, Article 226906. 10.1016/j.jpowsour.2019.226906.
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Abstract
We have constructed a 5 cm^{2} 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-degree transparency in the plane of the sample permits imaging coupled with advanced techniques, such as X-ray diffraction computed tomography.
| Type: | Article |
|---|---|
| Title: | X-ray transparent proton-exchange membrane fuel cell design for in situ wide and small angle scattering tomography |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.jpowsour.2019.226906 |
| Publisher version: | https://doi.org/10.1016/j.jpowsour.2019.226906 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | PEMFC, X-ray scattering, Tomography, XRD-CT |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10098582 |
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