Preparation and characterization of alpha-FeOOH nanorods via an ethylenediamine-assisted route

摘要

alpha-FeOOH nanorods with average diameter of 30 + - 5 nm and average length of 600 nm (aspect ratio approx = 320) were synthesized via an ethylenediamine-assisted route at low temperature. The samples were characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). It was found that ethylenediamine has a great influence on the morphology and phase of the final products. Electrochemical tests show that these nanorods deliver a large discharge capacity of 260 mA h g~(-1) vs. Li metal at 0.1 mA cm.