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Figure 4
Examples of binary masking, XANES fitting and color mapping. (a) Edge-jump image of an Ni-rich LiNixCoyAlzO2 cathode particle. Masks generated from the edge jump image, (b) with a threshold set at 0.1 and (c) manually drawn. (d) Color mapping of an Ni-rich LiNixCoyMnzO2 cathode particle, with Li-rich and Li-poor regions depicted in navy and red, respectively. Scale bar set to 1 µm. (e) Normalized histogram for the peak position distribution of the particle. (f) Comparison of averaged XANES spectra in ROIs between ROI-1 and ROI-2 shown in (d).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 32| Part 3| May 2025| Pages 815-822
https://doi.org/10.1107/S1600577525002036
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