Thermal oxide synthesis and characterization of Fe3O4 nanorods and Fe2O3 nanowires

被引：12
作者：
Jiao Hua [1 ,2 ]
Yang HeQing [1 ]
机构：
[1] Shaanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Peoples R China
[2] Weinan Teachers Univ, Dept Chem & Chem Engn, Weinan 714000, Peoples R China
来源：
SCIENCE IN CHINA SERIES B-CHEMISTRY | 2009年 / 52卷 / 05期
基金：
中国国家自然科学基金;
关键词：
thermal oxide process; nanorods; nanowires; C2H2O4; iron sheet; MAGNETIC-PROPERTIES; NANOPARTICLES; IRON; NANOCRYSTALS; FABRICATION; GROWTH; SCALE;
D O I：
10.1007/s11426-009-0092-1
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Fe3O4 nanorods and Fe2O3 nanowires have been synthesized through a simple thermal oxide reaction of Fe with C2H2O4 solution at 200-600A degrees C 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 microscopy and transmission electron microscopy. The influence of temperature on the morphology development was experimentally investigated. The results show that the polycrystals Fe3O4 nanorods with cubic structure and the average diameter of 0.5-0.8 mu m grow after reaction at 200-500A degrees C for 1 h in the air. When the temperature was 600A degrees C, the samples completely became Fe2O3 nanowires with hexagonal structure. It was found that C2H2O4 molecules had a significant effect on the formation of Fe3O4 nanorods. A possible mechanism was also proposed to account for the growth of these Fe3O4 nanorods.
引用
收藏
页码：599 / 604
页数：6
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