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Solvothermal synthesis and magnetic properties of magnetite nanoplatelets

Authors Liu, Xian-Ming HKUST affiliated (currently or previously)
Kim, Jang-Kyo View this author's profile
Issue Date 2009
Source Materials letters , v. 63, (3-4), 2009, FEB 15, p. 428-430
Summary Nanostructured magnetite plates were synthesized by a simple solvothermal route where ethylenediamine was used as the solvent and reducing agent. The morphology and structure of the as-prepared platelets were characterized using X-ray diffraction, infrared spectroscopy and transmission electron microscopy. The results showed that the products are magnetite crystals with plate like morphology whose thickness is estimated to be 20 nm. Magnetic measurements at 300 K gave the saturation magnetization and the coercive field of nanostructured magnetite 87.4 emu/g and 178 Oe, respectively, which are higher than those of cubic nanoparticles, due to the higher shape anisotropy of magnetite nanoplatelets. (C) 2008 Elsevier B.V. All rights reserved.
ISSN 0167-577X
Language English
Format Article
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