Ionic Liquid-Assisted Solvothermal Synthesis of Coralloid Fe<sub>3</sub>O<sub>4</sub> Nanoclusters

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Abstract

Nanostructured magnetic materials have drawn much attention due to their unique properties and extensive applications in biomedicine, catalysis, electrochemistry. Owing to the significant effects of different nanostructures on properties, researches have been focused on controllable synthesis of magnetic nanomaterials with novel morphology. In this work, coralloid Fe₃O₄ nanoclusters were successfully synthesized using ferric nitrate as precursor with ionic liquid-assisted solvothermal method. Ethylene glycol served as both solvent and reducing agent, and 1-n-decyl-3-methylimidazolium chloride ([Dmim]Cl) as the structure-directing agent. In comparison, spherical Fe₃O₄ nanoclusters were synthesized in the absence of ILs. The two kinds of Fe₃O₄ products were further compared by various characterizations such as field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray power diffraction (XRD) and vibrating sample magnetometer (VSM). The results show that the ionic liquid plays an active role in controlling the morphology of Fe₃O₄. Fe₃O₄ nanoclusters synthesized with the ionic liquid have higher specific surface areas and stronger saturation magnetization because of the unique coralloid structure.

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	Articles by authors
	Sun Kai
	Tang Shaokun
	Sun Changgeng
	Lv Runlong

Keywords： ionic liquid； nanomaterials； magnetite； synthesis

Received 2015-02-03;

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Cite this article:

Sun Kai, Tang Shaokun, Sun Changgeng, Lv Runlong.Ionic Liquid-Assisted Solvothermal Synthesis of Coralloid Fe₃O₄ Nanoclusters[J] Chemcial Industry and Engineering, 2017,V34(1): 14-18

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