Facile route to alpha-FeOOH and alpha-Fe2O3 nanorods and magnetic property of alpha-Fe2O3 nanorods.
alpha-FeOOH nanorods with diameters of 15-25 nm and lengths up to 170-300 nm were synthesized in high yield via a facile and template-free hydrothermal method at low temperature. After calcining the as-synthesized alpha-FeOOH at 250 degrees C for 2 h, we could obtain alpha-Fe2O3 nanorods. Interestingly, the as-obtained alpha-Fe2O3 nanorods exhibited weakly ferromagnetic characteristics at low temperature and superparamagnetic property at room temperature, which is different from the behavior of the corresponding bulk material.
Tang
Bo
B
College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, P. R. China. tangb@sdnu.edu.cn
Wang
Guangli
G
Zhuo
Linhai
L
Ge
Jiechao
J
Cui
Lijuan
L