Novel plasma-engineered MoS 2 nanosheets for superior lithium-ion batteries
Yanyan Liu (Yanshan University)
Long Zhang (Yanshan University)
Yuanchun Zhao (Yanshan University)
Tongde Shen (Yanshan University)
Xinlin Yan (Technische Universität Wien)
C. Yu (TU Delft - RST/Fundamental Aspects of Materials and Energy, TU Delft - RST/Storage of Electrochemical Energy)
Hongqiang Wang (Hebei University)
Hong Zeng (China Iron & Steel Research Institute Group)
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Abstract
It is a highly relevant topic concerning how to improve the electrochemical performance of anode materials for the next generation lithium-ion batteries (LIBs). Herein, for the first time, we report a facile and controllable approach to modify MoS
2
nanosheets, a typical 2D material, as an anode material for advanced LIBs via oxygen plasma engineering. An oxygen plasma treatment not only generates vacancies/defects but also incorporates heteroatom doping to form Mo–O–C bonds. This unique hybrid specialty enables the oxygen-plasma-treated MoS
2
to achieve superior electrochemical performance with high reversible capacities, a long-term cycle life, and good rate capabilities. The plasma-assisted modification is believed to be applicable for other 2D materials as an efficient anode for energy storages.
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