Synthesis of single crystalline hematite polyhedral nanorods via a facile hydrothermal process

被引:21
作者
Jia, Baoping [1 ]
Gao, Lian [1 ]
Sun, Jing [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
关键词
D O I
10.1111/j.1551-2916.2007.01523.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Single-crystalline alpha-Fe2O3 nanorods with a polyhedral configuration have been successfully synthesized via a facile hydrothermal process at 180 degrees C. X-ray powder diffraction, transmission electron microscopy observations, field emission scanning electron microscopy, and selected area electron diffraction patterns were used to characterize the as-synthesized samples. The result reveals that goethite nanorods were first generated and then transformed into hematite via dehydration in the successive hydrothermal treatment, in which the alpha-Fe2O3 inherited the rod-like morphology of the goethite precursor. The effect of surfactant and treatment time on the phase and morphology of the final products has been studied, and a possible growth mechanism is proposed.
引用
收藏
页码:1315 / 1318
页数:4
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