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Rapid chromium quantification in solid oxide fuel cell cathodes
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DOI：10.1016/j.scriptamat.2010.06.046.png)
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Abstract
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The detection and quantification of small quantities of Cr in (La,Sr)MnO3/Y-ZrO2 solid oxide fuel cell (SOFC) cathodes by energy-dispersive X-ray spectroscopy (EDXS) is not straightforward as Cr X-ray emission lines overlap with La/Mn and 0 lines. This work proposes an empirical law correlating the La peak height ratio L-beta 2.15/L-alpha 1 to Cr concentrations determined on Cr-doped LSM-YSZ samples characterized by EDXS. Calibration for the law was obtained by chemical analysis of dissolved cathodes. Quantification was confirmed by wavelength-dispersive X-ray spectroscopy. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keywords:
Energy dispersive X-ray spectroscopy (EDXS)
Perovskite
Solid oxide fuel cell (SOFC)
Fuel cell materials
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