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Page 6 of 13 Wu et al. Soft Sci 2024;4:42 https://dx.doi.org/10.20517/ss.2024.51
Figure 3. SEM images of (A) CoFe-MOF and (B) CoFe/Co@NC. (C and D) TEM and (E and F) HRTEM images of CoFe/Co@NC. SEM:
Scanning electron microscopy; MOF: metal-organic framework; NC: nitrogen-doped carbon; TEM: transmission electron microscope;
HRTEM: high-resolution TEM.
of properties is due to the increase in CoFe alloy content, which further enhances the magnetic loss of the
heterostructure, thus enhancing the absorption capacity of EMW. Meanwhile, the continuous formation of
nanosheets and hollow nanospheres also enhances the multiple reflections of incident EMW. However, as
the pyrolysis temperature rises to 900 °C, the R is very low [Figure 4D and H], which may be due to the
L
reduction of CoFe alloy content, as shown in the XRD results.
