Abstract
In the present work, iron nanocubes, nanorods and nanowires are successfully synthesized by one-step reduction approach in a solvothermal environment. It is analyzed that the iron nanocubes, nanorods and nanowires belong to the pure body-centered cubic structure of α-Fe. Effects of additive sort and the amount of Anionic Gemini surfactant 12-4-12 on the morphology evolution of Fe are discussed based on SEM and TEM images. The possible formation mechanisms of iron nanocubes, nanorods and nanowires are proposed. The Anionic Gemini surfactant 12-4-12 regarded as template plays an important role in the formation of iron nanocrystals. The microwave electromagnetic (EM) (80wt% Fe) and calculated microwave-absorbing (0.5mm thickness) properties in 2–18GHz of the iron nanocubes, nanorods and nanowires are studied systematically. Results show that iron nanowires are superior to nanorods and nanocubes, which indicates the potential to be a super-thin microwave absorber.
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