高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (3): 406.

• 研究论文 • 上一篇    下一篇

β-FeOOH纳米线的自排列及形成机理研究

王晓娟,张兴堂,蒋晓红,刘兵,王洪哲,李蕴才,黄亚彬,杜祖亮   

  1. 河南大学特种功能材料重点实验室,开封 475001
  • 收稿日期:2005-07-24 出版日期:2006-03-10 发布日期:2006-03-10
  • 通讯作者: 杜祖亮(1966年出生),男,博士,教授,博士生导师,从事纳米结构材料研究. E-mail: zld@henu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20371015、 90306010)、 国家“九七三”计划前期专项基金(批准号: 2002CCC02700)和教育部新世纪优秀人才支持计划资助课题.

Studies on the Self-arrangement of β-FeOOH Nanowires and the Formation Mechanism

WANG Xiao-Juan,ZHANG Xing-Tang,JIANG Xiao-Hong,LIU Bing,WANG Hong-Zhe,LI Yun-Cai,HUANG Ya-Bin,DU Zu-Liang*   

  1. Key Laboratory for Special Functional Materials,Henan University,Kaifeng 475001,China
  • Received:2005-07-24 Online:2006-03-10 Published:2006-03-10

摘要:

通过无机铁(Ⅲ)盐的水解,在常温常压条件下制备了β-FeOOH纳米线,利用X射线粉末衍射仪(XRD)和透射电子显微镜(TEM)对其结构及形貌进行了表征. 结果表明,产物是结晶性良好的四方相β-FeOOH 纳米线,直径约 60 nm,长度为 4~5 μm,沿[001]方向生长. 根据实验结果讨论了β-FeOOH纳米线的生长机理. 而且,这些纳米线可以自发地垂直或平行地排列在一起,形成特殊的图案,这可能是由于纳米线之间的磁相互作用产生的.

关键词: β-FeOOH; 纳米线; 水解

Abstract:

β-FeOOH nanowires were synthesized via hydrolysis of iron(Ⅲ) salts at room temperature. The morphology and structure of as-prepared sample were investigated by Transmission Electron Microscopy(TEM) and X-ray Diffraction(XRD). The characterization results showed that the nanowires were well-crystallized tetragonal β-FeOOH nanowires growing along [001] axis with diameters about 60 nm and lengths up to 4_5 μm respectively. The formation mechanism of the nanowires was also proposed based on the results of experiment. Moreover,the nanowires can arrange perpendicularly or abreast together to form special patterns through self\|assembly,which the magnetic interaction between them should be the main causation.

Key words: Hydrolysis,β-FeOOH;Nanowires;Self-arrangement

中图分类号: 

TrendMD: