Low crystalline 1T-MoS2@S-doped carbon hollow spheres as an anode material for Lithium-ion battery

• Published in: Journal of colloid and interface science 2021-11, Vol.601, p.411-417
• Main Authors: Wu, Weixin, Wang, Jianbiao, Deng, Qixin, Luo, Haiyan, Li, Yafeng, Wei, Mingdeng
• Format: Article
• Language: English
• Subjects: 1T-MoS2; Hollow sphere; Lithium-ion battery; Low crystalline; S-doped carbon
• ISSN: 0021-9797; 1095-7103
• DOI: 10.1016/j.jcis.2021.05.146

[Display omitted] A low crystalline 1T-MoS2@S-doped carbon (MoS2@SC) composite was successfully synthesized via a facile hydrothermal process. The composite is comprised by few-layer 1T-MoS2 nanosheets covered by an amorphous carbon layer with an expanded interlayer d-spacing of 1.01 nm. This structure is conducive to the fast transport of lithium-ions and volume accommodation during the charge–discharge process when the composite is applied as an anode material for LIBs. Additionally, the high conductivity and layered structure of 1T-MoS2 also facilitate fast of ion/electron transport, contributing to the improvement of the electrochemical properties. Therefore, this material demonstrated a high rate performance and excellent cycling stability, with the capacities of 847 and 622 mA h g−1 achieved at the current densities of 0.2 A g−1 and 2 A g−1, respectively. Even at a larger current density of 2 A g−1, MoS2@SC delivered a high reversible capacity of 659 mA h g−1 with an average capacity loss of 0.006% per cycle after 500 cycles.