Fig. 7. Comparison between experimental and best-fit curves for Cu-CHA 0.2_15 after pretreatment in O₂, from LCF analysis of (a) the normalized XANES and (b) the k²χ(k) EXAFS spectra. The LCF residuals and the scaled components corresponding to Z[Cu^IIOH] and Z₂Cu^II species are reported in both working spaces.