Synthesis of single-crystalline hollow ¦Â-FeOOH nanorods via a controlled incomplete-reaction course
详细信息 查看全文
- 作者：Haiyun Yu ; Xinyu Song ; Zhilei Yin ; Weiliu Fan ; Xuejie Tan ; Chunhua Fan and Sixiu Sun
- 关键词：FeOOH ; nanorod ; hollow ; dissolution ; recrystallization ; colloids
- 刊名：Journal of Nanoparticle Research
- 出版年：2007
- 出版时间：April, 2007
- 年：2007
- 卷：9
- 期：2
- 页码：301-308
- 全文大小：490 KB
文摘
The single-crystalline β-FeOOH hollow nanorods with a diameter ranging from 20∼30 nm and length in the range of 70–110 nm have been successfully synthesized through a two-step route in the solution. The phase transformation and the morphologies of the hollow β-FeOOH nanorods were investigated with X-ray powdered diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electric diffraction (SAED), high-resolution transmission electron microscopy (HRTEM), infrared spectrum (IR) and thermo-gravimetric analysis (TGA). These studies indicate that the first step is an incomplete-reaction course. Furthermore, The formation mechanism of the hollow nanorods has been discussed. It is found that the mixed system including chitosan and n-propanol is essential for the final formation of the hollow β-FeOOH nanorods.