Duan L.,Key Laboratory of Clean Energy Materials and Technology |
Duan L.,Key Laboratory of Advanced Functional Materials of Autonomous Region |
Duan L.,Xinjiang University |
Huang Y.,Key Laboratory of Clean Energy Materials and Technology |
And 9 more authors.
Materials Letters | Year: 2012
Fe 3O 4 fuzzy spheroids were synthesized by a facile solvothermal method. The as-prepared Fe 3O 4 fuzzy spheroids were investigated by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy, and the results showed that they had a spinel structure and a uniform particle size in the range of 120-200 nm. Results of electrochemical testing showed that the Fe 3O 4 fuzzy spheroids exhibited a high initial charge capacity of 980.6 mAh g - 1 and 949.5 mAh g - 1 after 165 cycles at a current density of 0.5 C at ambient temperature, as well as good rate capability. The improvement of reversible capacity and cyclic performance for the Fe 3O 4 nanoparticles could be attributed to the special fuzzy spheroid structure. © 2011 Elsevier B.V. All rights reserved.