FACILE SYNTHESIS OF MAGNETITE/CARBON NANOTUBES NANOCOMPOSITES WITH STABLE AND RATE CAPABILITY AS ANODE MATERIALS FOR LITHIUM-ION BATTERIES
- 化学化工－已发表论文 
Fe3O4/carbon nanotubes (CNTs) nanocomposites are successfully prepared by a facile hydrothermal method, without any reducing agents. SEM shows that the CNTs are dispersed well in the Fe3O4 nanoparticles of 50 to 100 nm in size. The electrochemical properties of the prepared nanocomposites as anode materials are further evaluated by galvanostatic charge/discharge cycling and cyclic voltammetry (CV). Results show that the nanocomposites display an initial discharge capacity of 1421 mAh.g(-1) and maintain 1100 mAh.g(-1) up to 40 cycles in the voltage of 0.005-3.0Vat 100 mAh.g(-1). When the current density is to 0.5, 1, 2, 5 and 1 C, the nanocomposites still exhibit discharge capacity of 1615.8, 817.0, 585.0, 391.0 and (585.0 +/- 45.0) mAh.g(-1), respectively, which are potential for anode materials in lithium-ion batteries.