Rapid chromium quantification in solid oxide fuel cell cathodes

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 O lines. This work proposes an empirical law correlating the La peak height ratio Lb2.15/La1 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.


Published in:
Scripta Materialia, 63, 8, 895-898
Year:
2010
Publisher:
Elsevier
ISSN:
1359-6462
Keywords:
Laboratories:




 Record created 2010-07-22, last modified 2018-03-18


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