Rapid synthesis of dendrite- and platelet-like α-Fe2O3 via a hydrothermal oxidation route

✍ Scribed by Jun Liang; Li Li; Weiming Song; Junzhuo Fang; Min Luo; Yanping Li

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 206 KB
• Volume: 45
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.200900707

✦ Synopsis

Dendrite and platelet-like α-Fe 2 O 3 microcrystals were synthesized by the oxidation reaction of K 4 Fe(CN) 6 and NaClO 3 through a simple hydrothermal method. The structures and morphologies of the as-prepared samples were characterized in detail by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The experiment results show that NaOH played an important role in controlling the morphology of the final products. The possible mechanism was discussed to elucidate the formation of different morphologies of the α-Fe 2 O 3 microstructures. Besides, the magnetic property of the dendrite α-Fe 2 O 3 microstructure was characterized by a vibrating sample magnetometer (VSM).