Figure 4.
FTIR spectra of (a) MCN-1H, (b) MCN-2H, (c) MCNC, (d) 0.5 Fe-MCNC, (e) 1Fe-MCNC, (f) 2Fe-MCNC, (g) 3Fe-MCNC, and (h) 4Fe-MCNC.
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