Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7996265 | Journal of Alloys and Compounds | 2016 | 8 Pages |
Abstract
Ultrasmall sub-5Â nm SnO2 nanocrystals/carbon composites, with the SnO2 loading as high as 87.3Â wt%, are synthesized via a facile hydrothermal route, followed by calcination. The annealed SnO2/C composite shows a higher discharge capacity and superior rate performance, compared with the pristine SnO2/C sample. At the current density of 200Â mAÂ gâ1, it can deliver a high reversible capacity of 968Â mAh gâ1. When the current density increases to 5000Â mAÂ gâ1, a high discharge capacity of 435Â mAh gâ1 can still be obtained, much higher than the theoretical capacity of graphite. Our results indicate the potential suitability of synthesizing ultrasmall electrode nanocrystals with high electrochemical performance.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Jie Qu, Yongan Yang, Xiaomin Shi, Wei Wang, Jianning Ding, Ningyi Yuan, Xinsheng Zhao, Chao Lai,