期刊
APPLIED SURFACE SCIENCE
卷 492, 期 -, 页码 37-44出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.05.139
关键词
Ternary composite; g-C3N4 nanosheets; Layered MoS2; Lithium-ion batteries
类别
资金
- foundation of Jiangsu colleges and universities Nature Science research project [17KJB430012]
- China Postdoctoral Science Foundation [2017M611715, 2017M611733]
Novel g-C3N4/MoS2/ZnS ternary heterojunction as high performance anode has been successfully designed and synthesized via a facile one-step hydrothermal process. The electrochemical reversibility of MoS2 for Li+ storage is improved by g-C3N4 and ZnS modification in this study. Electrochemical tests demonstrate that the g-C3N4/MoS2/ZnS electrode deliver a high reversible capacity of 1310 mAh g at the current density of 0.1 A g(-1) and a high rate capability (maintaining 84.5% at 800 mA g(-1)). Moreover, the electrode still can achieve a capacity of 805 mAh g(-1) even at 1 A g(-1). The enhanced electrochemical performance can be attributed to the synergetic effect between few-layer MoS2/ZnS heterojunctions and g-C3N4 within the interface region, which provides excellent charge transfer field and availably restrains the corruption and aggregation during charging and discharging process.
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