Molybdenum disulfide/phosphorus-doped carbon nanosheet composites as anode materials for sodium ion batteries

• Published in: IOP conference series. Earth and environmental science Vol. 1152; no. 1; pp. 12002 - 12009
• Main Authors: Chen, Weize, Peng, Junwen, Zhou, Yunlong, Cen, Kunfeng, Lv, Jingru, Cao, Xiaofen
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.03.2023
• Subjects: Anodes; Batteries; Carbon; Composite materials; Electrochemical analysis; Electrochemistry; Electrode materials; Molybdenum; Molybdenum disulfide; Nanosheets; Phosphorus; Scanning electron microscopy; Sodium; Sodium-ion batteries; Specific capacity
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/1152/1/012002

Abstract In this paper, the phosphorus-doped carbon nanosheet and molybdenum disulfide (P-CNSs-MoS 2 ) composites was synthesized by a hydrothermal method, and the P-CNSs-MoS 2 composites could be applied as anode material for Na + battery. The morphology and structure of the composites were characterized by X-ray diffractometer (XRD) and scanning electron microscopy (SEM). And the electrochemical properties of the composite were also measured. The results showed that the size of MoS 2 material became significantly larger by the attachment and derivation of phosphorus-doped carbon nanosheets, which could also further promote the diffusion of electrons and sodium ions. As the current density was 0.1 A g −1 , the first cycle specific discharge capacity of P-CNSs-MoS 2 composite could reach 1059.2 mA·h/g and its reversible specific capacity could still maintain at 446.2mA·h/g after 20 cycles.