“…The deconvoluted C 1s spectra show three peaks at 284.8, 286.2, and 288.7 eV due to the presence of C–C, C–O, and CO, respectively (Figure a). , The high-resolution XPS spectrum of Co 2p (Figure b) is deconvoluted, the peaks at 780.4 and 796.1 eV correspond to the spin–orbit splitting of Co 2p 3/2 and Co 2p 1/2 , respectively, and their respective shakeup satellite (sat) peaks at 784.7 and 802.8 eV are found. This is evidence of the presence of Co in its Co 2+ oxidation state in the CF-PC nanocomposite. , The high-resolution Fe 2p spectrum is fitted with four main peaks (710.8, 713.6, 723.9, 726.4 eV) and two satellite peaks (719.1, 732.62 eV), which is depicted in Figure c. The peaks at 710.8 and 723.9 eV are assigned to Fe 2p 3/2 and Fe 2p 1/2 of Fe 3+ in the octahedral sites whereas the peaks at 713.6 and 726.4 eV are assigned to Fe 2p 3/2 and Fe 2p 1/2 of Fe 3+ in the tetrahedral sites. , Figure d depicts the high-resolution O 1s spectrum, fitted with two peaks at 529.9 and 531.8 eV corresponding to the M–O (M = Co 2+ , Fe 3+ ) bond in the lattice sites and oxygen containing functional groups, respectively. , …”