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Figure 6 | Nanoscale Research Letters

Figure 6

From: Active site formation mechanism of carbon-based oxygen reduction catalysts derived from a hyperbranched iron phthalocyanine polymer

Figure 6

Fe 2p HXPES spectra. (a) FePc/PhRs and (b) HB-FePc catalysts. Solid, dashed, and dotted lines show the binding energies of Fe metal, Fe2+, and Fe3+, respectively. The arrows indicate satellite peaks of Fe2O3 2p 3/2 and 2p 1/2, which emerge approximately 8 eV above pristine peaks [31]. In the spectrum of the FePc/PhRs precursor, a peak from In 3p 1/2 is observed.

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