Figure 1.
FE-SEM images: (a,b) MCN-1H, (c,d) 1Fe-MCNC, (e,f) 2Fe-MCNC, (g,h) 3Fe-MCNC, (i,j) EDS spectra of MCN-1H and 2Fe-MCNC, and (k–o) FE-SEM image and elemental mapping of 2Fe-MCNC.
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