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Figure 3
2D XANES fitting evaluation. (a) Flat-field corrected TXM image of a partially charged LiNixCoyAlzO2 particle taken at 8.36 keV. (b) 2D distribution of Ni3+ after fitting. (c) 2D distribution of Ni4+ after fitting. (d) Fitting error on a log scale. (e) Comparison of fitting curve and raw data extracted from ROI #1 shown in (a). (f) Comparison of fitting curve and raw data extracted from ROI #2 shown in (a).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 27| Part 2| March 2020| Pages 567-575
https://doi.org/10.1107/S1600577520001071
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