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. 2025 Dec 13;17:757. doi: 10.1038/s41467-025-67439-4

Fig. 3. Properties related to crystal structure and electronic configuration.

Fig. 3

a Raman spectra of ACCE and relevant samples after different CV cycles. High-resolution b Ni 2p, c Fe 2p and d O 1s core level XPS spectra for ACCE and ACCE-a. e EPR patterns for ACCE, ACCE-a and NiFe-LDH-H. XANES spectra of f Fe K-edge, g Ni K-edge collected for ACCE and ACCE-a. h FT-EXAFS k3χ(R) spectra at Fe K-edge (up) and Ni K-edge (down) collected for ACCE and ACCE-a. i EXAFS wavelet transform (WT) of Fe K-edge for ACCE and ACCE-a.