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- W4381952912 abstract "Zinc-ion batteries are receiving interest due to their high level of safety and eco-friendliness. However, the sluggish diffusion kinetics of zinc ions in the electrode limit its practical application. In this paper, rapid Zn2+ diffusion in the MoS2-X@NCNTs cathode is achieved by utilizing the S vacancies generated under a H2/Ar atmosphere and N-doped carbon nanotubes (NCNTs) derived from the pyrolysis of polyethylene and melamine. The presence of S vacancies significantly reduces the diffusion barrier of Zn2+, thereby promoting the transport of Zn2+ ions. MoS2-X@NCNTs cathode demonstrates an impressive discharge specific capacity of 220 mAh g-1 (0.1 A g-1) and a remarkable reversible capacity of 173 mAh g-1 (3 A g-1). Furthermore, the reduced adsorption energy of MoS2-X nanosheets leads to Zn2+ tending to preferentially insert S vacancies, resulting in a larger capacity than pure MoS2. This work realizes efficient storage of Zn2+ in 2D disulfides through carbon frameworks and S vacancies. In addition, flexible zinc batteries with MoS2-X@NCNTs cathodes have promising applications in wearable devices." @default.
- W4381952912 created "2023-06-26" @default.
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- W4381952912 date "2023-11-01" @default.
- W4381952912 modified "2023-10-16" @default.
- W4381952912 title "Vacancy engineering of MoS2−X @NCNTs for efficient storage of zinc ions" @default.
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- W4381952912 doi "https://doi.org/10.1016/j.jallcom.2023.171114" @default.
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