期刊
JOURNAL OF POWER SOURCES
卷 402, 期 -, 页码 340-344出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2018.09.046
关键词
Sodium ion batteries; ZnS; Embedded heterostructure; One-pot synthesis
资金
- National Natural Science Foundation of China [51572129, 51602158, 51674147]
- International S&T Cooperation Program of China [2016YFE0111500]
- Natural Science Foundation of Jiangsu Province [BK20160835, BK20170036, BK20161544]
- Russian Foundation for Basic Research [16-29-06439]
Herein, ZnS nanoparticles on Nitrogen (N) and Sulphur (S) co-doped carbon nanosheets (ZnS@NSC) are prepared through a highly efficient sol-gel synthesis. Interestingly, the ZnS nanoparticles are encapsulated in ultrathin carbon shells, which are crucial to buffer the volume changes of ZnS during sodium ion intercalation/de-intercalation. Meanwhile, the nanosheets and ultrafine carbon shells together constitute the N, S co-doped carbon framework, which not only can give rise to abundant active sites for sodium storage but also greatly enhance the electrical conductivity. As a result, the ZnS@NSC achieves a reversible capacity of 734 mAh g(-1) at 0.5 A g(-1) and excellent cycling stability (73.6% capacity retention after 380 cycles at 0.5 A g(-1)).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据