Figure 2
SEM and TEM images of (a–c) Co/N/C, (d–f) Fe/N/C and (g–i) Ni/N/C catalysts: (a,b,d,e,g,h) TEM images; (c,f,i) SEM images and the corresponding EDS mapping.
Figure 2 | Scientific Reports
SEM and TEM images of (a–c) Co/N/C, (d–f) Fe/N/C and (g–i) Ni/N/C catalysts: (a,b,d,e,g,h) TEM images; (c,f,i) SEM images and the corresponding EDS mapping.
