Fig. 2: Electronic state and atomic structure characterization of the prepared catalysts. | Nature Communications

Fig. 2: Electronic state and atomic structure characterization of the prepared catalysts.

From: Non-metallic iodine single-atom catalysts with optimized electronic structures for efficient Fenton-like reactions

Fig. 2

a The electron paramagnetic resonance (EPR) spectra of NC and I-NC. b High-resolution X-ray photoelectron spectroscopy (XPS) N 1s spectra of NC and I-NC. c High-resolution XPS I 3d spectra of I-NC. The relevant XPS fitting parameters of N 1s and I 3d5/2 are listed in Supplementary Table 3. d Normalized I K-edge X-ray absorption near edge structure (XANES) spectra of Iodine, Iohexol, and I-NC. e I K-edge Fourier-transformed extended X-ray absorption fine structure (EXAFS) spectra for Iodine, Iohexol, and I-NC. Purple region denotes the characterized peaks of I-C both in NC and I-NC. f I K-edge EXAFS fitting analysis for I-NC. g–i Wavelet transform EXAFS plots of iodine, iohexol, and I-NC.

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