Thermal oxide synthesis and characterization of Fe3O4 nanorods and Fe2O3 nanowires

• 来源期刊: 中国科学B辑（英文版）
• 年，卷（期）: 2009,（5）
• 页码范围: 599-604
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11426-009-0092-1

摘要

Fe3O4 nanorods and Fe2O3 nanowires have been synthesized through a simple thermal oxide reaction of Fe with C2H2O4, solution at 200-600℃ for 1 h in the air. The morphology and structure of Fe3O4 nanorods and Fe2O3 nanowires were detected with powder X-ray diffraction, scanning electron mi-croscopy and transmission electron microscopy. The influence of temperature on the morphology de-velopment was experimentally investigated. The results show that the polycrystals Fe3O4 nanorods with cubic structure and the average diameter of 0.5-0.8 pm grow after reaction at 200-500℃ for 1 h in the air. When the temperature was 600℃, the samples completely became Fe2O3 nanowires with hexagonal structure. It was found that C2H2O4 molecules had a significant effect on the formation of Fe3O4 nano-rods. A possible mechanism was also proposed to account for the growth of these Fe3O4 nanorods.