Fig. 4
The XRD patterns of carbon spheres (a), Fe3O4@carbon nanospheres (b), Co–Ni/Fe3O4@carbon nanospheres (c), SiO2@Co–Ni/Fe3O4@carbon nanosphere (d), Co–Ni/Fe3O4@MMSHS (e).
Fig. 4 | Scientific Reports
The XRD patterns of carbon spheres (a), Fe3O4@carbon nanospheres (b), Co–Ni/Fe3O4@carbon nanospheres (c), SiO2@Co–Ni/Fe3O4@carbon nanosphere (d), Co–Ni/Fe3O4@MMSHS (e).
