Synthesis of Fe2O3 nanowires by oxidation of iron

被引:151
作者
Fu, YY [1 ]
Chen, J [1 ]
Zhang, H [1 ]
机构
[1] Peking Univ, State Key Lab Mesoscop Phys, Phys Mat Lab, Dept Phys, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/S0009-2614(01)01352-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
By carefully controlling the reacting conditions, including atmosphere, temperature., and reacting time, we managed to prepare the nanowires of Fe2O3 by oxygenating pure iron. X-ray and transmission electronic microscope analyses demonstrate that the Fe2O3 nanowires are of rhombohedral structure, i.e., alpha-Fe2O3. It is shown by our study that the alpha-Fe2O3 nanowires have a diameter ranging from 15 to 75 nm and their typical lengths are in the range 10-20 mum. Within our knowledge it is the first report on nanowires of Fe2O3. The Fe2O3 nanowires are expected to present special magnetic, optical and electrical properties., and facilitate future nanoscale device applications. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:491 / 494
页数:4
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