High-content 1T Phase MoS2 Nanosheets Coupled on Graphene Oxide for Lithium-ion Batteries

• Published in: Journal of alloys and compounds 2024-01, Vol.971, p.172640, Article 172640
• Main Authors: Zhou, Xinglan, Lan, Xiaoyan, Jiao, Zipan, Zong, Haoran, Zhang, Peng, Xu, Benhua
• Format: Article
• Language: English
• Subjects: Accordion-shaped graphene oxide; Ammonium ion (NH4+); Hydrothermal method; Lithium-ion batteries; Metallic phase molybdenum disulfide
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2023.172640

Metallic phase molybdenum disulfide (1T MoS2) has been extensively investigated as a promising energy storage material due to its various fascinating physical properties and potential for excellent performance. On this basis, 1T MoS2 nanosheets were grown on the accordion-like graphene oxide (GO) via a facile hydrothermal method for use as an anode of lithium-ion batteries. The content of 1T phase MoS2 was regulated by varying the amount of urea used during synthesis. When 1g of urea was added to modulate the MoS2/GO (1T MoS2/GO (1g)), the metallic content of the MoS2 reached a remarkable level of 81.12%. Benefiting from the synergistic effect of the two materials, the 1T MoS2/GO (1g) electrode has a first specific charging/discharging capacity of 1612 mA h g-1 at a current density of 0.1Ag-1 and maintained a specific capacity of 774mAh g-1 after cycling for 60 cycles at high current density (1Ag-1). These results highlight enhanced electrochemical performance and cycling stability achieved with the utilization of this novel composite electrode. [Display omitted] •The content of metal molybdenum disulfide varies with the amount of urea added, and the high content (81.12%) of MoS2/GO will greatly improve the electrochemical properties of the material.•1T MoS2 is tightly bonded to graphene through C-O-Mo bonds, ensuring its structural stability to resist volume changes during charging and discharging.•Capacities up to 774 mAh g-1 after 60 cycles at high current densities of 1Ag-1.