One-pot hydrothermal synthesized MoO2 with high reversible capacity for anode application in lithium ion battery
By Liu, Yulong; Zhang, Hong; Ouyang, Pan & Li, Zhicheng
Published in Electrochimica Acta
NULL
2013
Abstract
A facile and template-free one-pot strategy is applied to synthesize MoO2 nanostructured particles via a hydrothermal methodology. Characterizations include X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Brunauer–Emmett–Teller surface area, X-ray photoelectron spectroscopy, Raman scattering spectroscopy, cyclic voltammetry and galvanostatic cycling. The as-annealed MoO2 nanostructured particles exhibit interconnecting and carbon-free features. Due to the unique nanostructure, the MoO2 electrode has a high specific capacity of 824 mAh g-1 at C/10 and high reversible capacity of 760 mAh g-1 after 30 cycles as anode for lithium storage performance. The interconnected MoO2 nanostructured particles also exhibit an excellent rate performance. Microstructure investigations of the MoO2-based electrode after full-lithiation are performed to elucidate the lithium ion uptake/removal mechanism, which can help us understand the unique cycling behavior of MoO2 material.
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