Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5438931 | Ceramics International | 2017 | 15 Pages |
Abstract
MoO3/reduced graphene oxide (MoO3/RGO) composites were successfully prepared via a facile one-step hydrothermal method, and evaluated as anode materials for sodium ion batteries (SIBs). The crystal structures, morphologies and electrochemical properties of the as-prepared samples were characterized by X-ray diffraction, field-emission scanning electron microscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge/discharge tests, respectively. The results show that the introduction of RGO can enhance the electrochemical performances of MoO3/RGO composites. MoO3/RGO composite with 6 wt% RGO delivers the highest reversible capacity of ~208 mA h gâ1 at 50 mA gâ1 after 50 cycles with good cycling stability and excellent rate performance for SIBs. The excellent sodium storage performance of MoO3/RGO should be attributed to the synergistic effect between MoO3 and RGO, which offers the increased electrical conductivity, the facilitated electron transfer ability and the buffering of volume expansion.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xiaojie Zhang, Conglong Fu, Jinliang Li, Chuang Yao, Ting Lu, Likun Pan,