β-FeOOH纳米线的自排列及形成机理研究  

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

作　　者：王晓娟[1] 张兴堂[1] 蒋晓红[1] 刘兵[1] 王洪哲[1] 李蕴才[1] 黄亚彬[1] 杜祖亮[1] 

机构地区：[1]河南大学特种功能材料重点实验室,开封475001

出　　处：《高等学校化学学报》2006年第3期406-409,共4页Chemical Journal of Chinese Universities

基　　金：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);教育部新世纪优秀人才支持计划资助课题.

摘　　要：通过无机铁(Ⅲ)盐的水解,在常温常压条件下制备了βFeOOH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βFeOOH纳米线,直径约60nm,长度为4～5μm,沿[001]方向生长.根据实验结果讨论了βFeOOH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.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--5μm respectively. The formation mechanism of the nanowires was also proposed based on the results of experiment. Moreover, the nanowires can arrange perpendicularly through self-assembly, which the magnetic interaction between the or abreast together to form special patterns m should be the main causation.

关 键 词：β-FeOOH 纳米线 水解 

分 类 号：O641[理学—物理化学]