Direct synthesis of Fe3O4 nanopowder by thermal decomposition of Fe-urea complex and its properties

作者：Asuha S^*; Suyala B; Siqintana X; Zhao S

来源：Journal of Alloys and Compounds, 2011, 509(6): 2870-2873.

DOI：10.1016/j.jallcom.2010.11.145

• Magnetite
• Magnetic materials
• Magnetic measurements
• Thermal decomposition

An easy synthesis route of magnetite (Fe3O4) nanopowder is developed by using thermal decomposition of Fe-urea complex ([Fe(CON2H4)(6)](NO3)(3)). The formation of Fe3O4 is confirmed from X-ray powder diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements. The morphological properties and magnetic properties of the Fe3O4 are characterized by transmission electron microscopy (TEM) and magnetic measurements, respectively. By an increase in reaction temperature from 200 to 300 degrees C, the average crystallite size of the Fe3O4 nanopowder increases from 37 to 50 nm. Room temperature magnetization hysteresis curves show that the Fe3O4 nanopowder possesses ferrimagnetic characteristics. The saturation magnetization of the Fe3O4 nanopowder increases from 70.7 to 89.1 emu/g when the reaction temperature increases from 200 to 300 degrees C.

• 出版日期2011-2-10
• 单位内蒙古师范大学