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Issue 20, 2011
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Rhombic dodecahedral Fe3O4: ionic liquid-modulated and microwave-assisted synthesis and their magnetic properties

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Abstract

Rhombic dodecahedral (RD) Fe3O4 nanocrystals (NCs) were for the first time prepared via a rapid and facile microwave-assisted route in the presence of ionic liquids (ILs). The reaction could be finished within 15 min at temperatures as low as 90 °C. A proper amount of ILs played a key role in the synthesis of pure RD Fe3O4 NCs. In addition, the HMT-to-phenol molar ratio was also crucial for the growth of the RD Fe3O4 NCs. The phase structures, morphologies, and sizes of as-prepared products were investigated in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). The magnetic study reveals that the TB of the RD Fe3O4 NCs is found to be at 120 K, and the saturation magnetization is 86 emu g−1 at room temperature.

Graphical abstract: Rhombic dodecahedral Fe3O4: ionic liquid-modulated and microwave-assisted synthesis and their magnetic properties

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Publication details

The article was received on 27 Apr 2011, accepted on 19 Jul 2011 and first published on 15 Aug 2011


Article type: Communication
DOI: 10.1039/C1CE05495C
Citation: CrystEngComm, 2011,13, 6017-6020
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    Rhombic dodecahedral Fe3O4: ionic liquid-modulated and microwave-assisted synthesis and their magnetic properties

    X. Li, D. Liu, S. Song, X. Wang, X. Ge and H. Zhang, CrystEngComm, 2011, 13, 6017
    DOI: 10.1039/C1CE05495C

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