Facile Fabrication of Single Crystalline Fe3O4 Nanorods and its Magnetic Properties
Single crystalline Fe3O4 nanorods were fabricated in high yield via a facile hydrothermal route in the presence of sodium citrate as addition agent. 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 transmission electron microscopy (HRTEM). The diameter of magnetite nanorods is about 50~80 nm and its length is more than 2 μm. Room-temperature magnetic measurements showed that Fe3O4 nanorods exhibited high saturation magnetization and coercitivity of 77.8 emu/g and 98 Oe, respectively, while the as-obtained nanoparticles had low coercitivity value.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
G. L. Li et al., "Facile Fabrication of Single Crystalline Fe3O4 Nanorods and its Magnetic Properties", Advanced Materials Research, Vols. 194-196, pp. 638-642, 2011