1T MoS2 growth from exfoliated MoS2 nucleation as high rate anode for sodium storage. (22nd October 2021)

• Record Type: Journal Article
• Authors: Xu, Zhanwei; Liu, Xinyue; Yao, Kai; Ren, Yuchuan; Li, Jiayin; Shen, Xuetao; Li, Zhi
• Is Part Of: Nanotechnology. Volume 33:Number 2(2022)
• Publication Date: 2021-10-22
• Subjects: 1T MoS2 -- seed crystals -- epitaxial growth -- sodium ion batteries -- anode; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ac2d09
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Recently, metallic 1T MoS2 has been investigated due to its excellent performance in electrocatalysts, photocatalysts, supercapacitors and secondary batteries. However, there are only a few fabrication methods to synthesize stable 1T MoS2 . In this work, exfoliated MoS2 is employed as seed crystals for the nucleation and growth of a stable 1T MoS2 grains by an epitaxial growth strategy. The 1T MoS2 displays a large interlayer spacing around 0.95 nm, excellent hydrophilia and more electrochemically active sites along the basal plane, which contribute an efficient ion/electron transport pathway and structural stability. When employed as the anode material for sodium ion batteries, the 1T MoS2 electrodes can survive 500 full charge/discharge cycles with a minimum capacity loss of 0.40 mAh g −1 cycle −1 tested at a current density of 1.0 A g −1, and the capacity degradation is as low as 0.39 mAh g −1 cycle −1 at a current density of 2.0 A g −1 .