X-ray transparent proton-exchange membrane fuel cell design for in situ wide and small angle scattering tomography
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2019-10-15
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Language
en
Pages
1-8
Series
Journal of Power Sources
Abstract
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.Description
| openaire: EC/H2020/679933/EU//MEMERE
Keywords
PEMFC, Tomography, X-ray scattering, XRD-CT
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Citation
Martens, I, Vamvakeros, A, Chattot, R, Blanco, M V, Rasola, M, Pusa, J, Jacques, S D M, Bizzotto, D, Wilkinson, D P, Ruffmann, B, Heidemann, S, Honkimäki, V & Drnec, J 2019, ' X-ray transparent proton-exchange membrane fuel cell design for in situ wide and small angle scattering tomography ', Journal of Power Sources, vol. 437, 226906, pp. 1-8 . https://doi.org/10.1016/j.jpowsour.2019.226906