Figure 3
XRD spectra of the carbon@SiO2 spheres (a), carbon@SiO2 spheres after heated to 450 °C under pure argon (b), hollow carbon spheres (c), and NiFe2O4@MCHMs catalyst (d).
Figure 3 | Scientific Reports
XRD spectra of the carbon@SiO2 spheres (a), carbon@SiO2 spheres after heated to 450 °C under pure argon (b), hollow carbon spheres (c), and NiFe2O4@MCHMs catalyst (d).
