Journal of Physical Chemistry C
Journal of Physical Chemistry C
5 years ago

Electromagnetic Wave Absorption Performance on Fe3O4 Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Electromagnetic Wave Absorption Performance on Fe3O4 Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol
Xiang Li, Jiping Liu, Xiuchen Zhao, Jinhua Yin, Jingyun Wang, Jindou Ji, Jun He, Xingwang Cheng, Yue Huang
Fe3O4 nanoparticles were synthesized by hydrothermal method with the synergy reduction of ethylene glycol (MEG) and diethylene glycol (DEG). The purity, grain size, magnetism, and the microwave absorption performance of the samples can be controlled by the concentration of DEG in the precursor solution. Under the optimized condition of synthesis, the product is a highly crystallized cubic Fe3O4 and the crystallite size of Fe3O4 is about 44–60 nm with the saturation magnetization of about 96 emu/g. The Fe3O4 paraffin composites exhibit excellent microwave absorption properties at the frequency range of 1–18 GHz, which are attributed to the electron transition resonance, natural resonance, and polarization of Fe3O4. The minimum reflection loss of Fe3O4 synthesized under the MEG and DEG content of 3.58 and 2.10 mol/L, respectively, can reach −42 dB at a thickness of 2.1 mm. And the effective absorption bandwidth of the samples can reach 3.9 GHz (7.3–11.2 GHz) at a thickness of 2.5 mm. The result demonstrates that Fe3O4 nanoparticles synthesized with DEG as auxiliary reducing agent and surfactant have a good microwave absorption performance.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b11533

DOI: 10.1021/acs.jpcc.7b11533

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