Fabrication of Fe3O4 octahedra by a triethanolamine-assisted hydrothermal process

✍ Scribed by Jun Liang; Li Li; Min Luo; Yuan Wang

• Book ID: 102127605
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 142 KB
• Volume: 46
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.201000485

✦ Synopsis

Octahedral Fe 3 O 4 microcrystals were synthesized using a triethanolamine-assisted route under hydrothermal conditions. The chemical compositions and morphologies of the as-prepared samples were characterized in detail by X-ray diffraction (XRD) and scanning electron microscopy (SEM). During the hydrothermal process for the preparation of Fe 3 O 4 octahedra, the possible mechanism was discussed to elucidate the formation of the octahedral Fe 3 O 4 microcrystals. Triethanolamine and hydrazine hydrate play important roles in the formation of the final products. The magnetic property of sample was evaluated on a vibrating sample magnetometer (VSM) at room temperature. The values of saturation magnetization and coercivity of octahedral Fe 3 O 4 are about 103 emu/g and 157 Oe, respectively.