Abstract

The ε-Fe3N nanoparticles/C composite materials have been synthesized by ethylenediamine nitrided urea complexing precursors. The prepared ε-Fe3N NPs have regular spherical shape and small particle size. And the prepared ε-Fe3N NPs/C magnetic materials have significantly higher coercivity (604.4 Oe) and relatively lower saturation magnetization (21.1 emu/g) compared with the reported experimental and theoretical studies of ε-Fe3N. We consider that the surface properties and particle size of the prepared materials will result in the changes in magnetic properties.

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