A soft-template-assisted hydrothermal approach to single-crystal Fe3O4 nanorods

作者：Wan JX; Chen XY; Wang ZH; Yang XG; Qian YT^*

来源：Journal of Crystal Growth, 2005, 276(3-4): 571-576.

DOI：10.1016/j.jcrysgro.2004.11.423

• nanostructures
• hydrothermal crystal growth
• nanomaterials
• magnetic materials

Uniform single-crystal Fe3O4 nanorods with an average diameter of 25mn and length of 200nm have been synthesized via a soft-template-assisted hydrothermal route at 120 degrees C for 20 h. The magnetic properties of as-prepared samples were recorded on a vibrating sample magnetometer (VSM) at room temperature. The hysteresis loop of Fe3O4 nanorods shows a ferromagnetic behavior with saturation magnetization of 71.3 emu/g and coercivity of 150 Oe. The formation of one-dimensional (ID) Fe3O4 nanostructures could be ascribed to ethylenediamine. It is revealed that ethylenediamine plays a crucial role not only as a base source but also as a soft template to form single-crystal Fe3O4 nanorods, and the benzene used in this study is important to prevent ferrous ion to be oxygenated by oxygen in air.

• 出版日期2005-4-1
• 单位中国科学技术大学