Carbon-coated MoS2/Mxene hybrids for enhanced Li-ions storage performance

Compared with MoS2/Mxene, the MoS2/Mxene/C shows significantly superior specific capacity and cycling stability. This is attributed to the carbon layer coating also providing buffer space to accommodate the volume change of MoS2/Mxene during charging and discharging, thus improving the electrochemic...

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Veröffentlicht in:Materials letters 2024-12, Vol.377, p.137435, Article 137435
Hauptverfasser: Zhou, Xinglan, Jiao, Zipan, Lan, Xiaoyan, Liu, Xiaolei, Zhang, Peng, Xu, Benhua
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Sprache:eng
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Zusammenfassung:Compared with MoS2/Mxene, the MoS2/Mxene/C shows significantly superior specific capacity and cycling stability. This is attributed to the carbon layer coating also providing buffer space to accommodate the volume change of MoS2/Mxene during charging and discharging, thus improving the electrochemical performance. [Display omitted] •MoS2/Mxene/C has good cycling stability at 1 A/g.•MoS2/Mxene/C has a high specific capacity compared to MoS2/Mxene.•The carbon layer coating also provides a buffer space for the volume change of MoS2/Mxene.•MoS2/Mxene/C composites achieve a layer spacing of 0.98 nm. MoS2/Mxene/C was synthesized by a facile hydrothermal method. The electrochemical measurements revealed that, in comparison to MoS2/Mxene, the MoS2/Mxene/C composite exhibited an initial charge/discharge capacity of 1440 mAh/g and 2107 mAh/g at a current density of 0.1 A/g. Furthermore, it maintained a specific capacity of 688.2 mAh/g after undergoing 200 cycles at a higher current density of 1 A/g, thereby demonstrating remarkable superior specific capacity and cycling stability. Consequently, MoS2/Mxene/C is anticipated to serve as a high-performance anode material for lithium-ion batteries (LIBs).
ISSN:0167-577X
DOI:10.1016/j.matlet.2024.137435