Journal
JOURNAL OF POWER SOURCES
Volume 179, Issue 1, Pages 357-360Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2007.12.099
Keywords
lithium ion battery; MoO2; MoO3; alcohol vapor reduction
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MoO2 synthesized through reduction Of MoO3 With ethanol vapor at 400 degrees C was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Its electrochemical performance as an anode material for lithium ion battery was tested by cyclic voltammetry (CV) and capacity measurements. During the reduction process, the starting material (MoO3) collapsed into nanoparticles (similar to 100 nm), on the nanoparticles remains a carbon layer from ethanol decomposition. Rate capacity and cycling performance of the as-prepared product is very satisfactory. It displays 318 mAh g(-1) in the initial charge process with capacity retention of 100% after 20 cycles in the range of 0.01-3.00V vs. lithium metal at a current density of 5.0 mA cm(-2), and around 85% of the retrievable capacity is in the range of 1.00-2.00 V. This suggests the application of this type Of MoO2 as anode material in lithium ion batteries. (C) 2008 Elsevier B.V. All rights reserved.
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