Figure 4
Comparison of the relevant elements among the BC samples: (a) the survey spectra; (b–f) P2p, C1s, Fe2p, Mg1s, and O1s, respectively. The intensities are normalized to the maximum for a better comparison.
Figure 4 | Scientific Reports
Comparison of the relevant elements among the BC samples: (a) the survey spectra; (b–f) P2p, C1s, Fe2p, Mg1s, and O1s, respectively. The intensities are normalized to the maximum for a better comparison.
