Synthesis of Fe₃O₄ nanoflowers by a simple and novel solvothermal process

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• 作者：Zhipeng Cheng ; XiaoZhong Chu ; Hui Zhong ; Jingzhou Yin ; Yu Zhang ; Jiming Xu ; ^{xujm68@126.com}
• 关键词：Nanoparticles ; Magnetic materials ; Fe3O4 nanoflowers ; Fe(CO)5
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：1 June, 2012
• 卷：76
• 期：Complete
• 页码：90-92
• 文件大小：688 K

摘要

Fe₃O₄ nanoflowers were prepared by a simple and novel solvothermal process. Iron pentacarbonyl (Fe(CO)₅) and absolute ethanol were used as the iron source and solvent, respectively. X-ray diffraction and energy dispersive spectroscopy results showed that the as-prepared product was pure cube phase Fe₃O₄ without any impurity. Scanning electron microscopy and transmission electron microscopy studies revealed that the product consisted of several uniform flower-like nanostructures with an average size of ca. 100 nm. The nanoflowers consisted of many irregular polyhedrons as building blocks. A comparative experiment indicated that pure cube phase Fe₃O₄ cannot be obtained by replacing the ethanol solvent with ethylene glycol. Magnetic analysis revealed that the Fe₃O₄ nanoflowers had a superparamagnetic property with a saturation magnetization of 82.6 emu g^鈭?#xA0;1.