Abstract
Nearly monodisperse hollow α-Fe2O3 microspheres composed of nanoparticles have been successfully synthesized through a facile template-free hydrothermal method. The products were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It is shown that the hollow α-Fe2O3 microspheres consist of well-aligned α-Fe2O3 nanoparticles with a mean diameter of about 15 nm. This facile reaction route presents an efficient method for mass production of monodisperse hollow magnetic nanomaterials. The final α-Fe2O3 microspheres exhibit special magnetic properties with a small remnant magnetization of 0.09 emu g−1 and a high coercivity of 1121.67 Oe at room temperature.
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Song, HJ., Li, N. & Shen, XQ. Template-free synthesis of hollow α-Fe2O3 microspheres. Appl. Phys. A 102, 559–563 (2011). https://doi.org/10.1007/s00339-010-6072-7
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DOI: https://doi.org/10.1007/s00339-010-6072-7