MoS2/graphene nanocomposite with enlarged interlayer distance as a high performance anode material for lithium-ion battery. Issue 20 (23rd September 2016)

• Record Type: Journal Article
• Authors: Chen, Lu; Chen, Fang; Tronganh, Nguyen; Lu, Mengna; Jiang, Yong; Gao, Yang; Jiao, Zheng; Cheng, Lingli; Zhao, Bing
• Is Part Of: Journal of materials research. Volume 31:Issue 20(2016)
• Page Start: 3151
• Page End: 3160
• Publication Date: 2016-09-23
• Subjects: Energy storage, -- hydrothermal, -- aerogel, -- layered, -- freeze drying; Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1557/jmr.2016.332
• Languages: English
• ISSNs: 0884-2914

Abstract

Abstract: Abstract : In this article, we report on the preparation of few-layered MoS2 /graphene nanocomposite (MoS2 /GNS-G) with enlarged interlayer distance as the lithium-ion battery anode via a facile hydrothermal method followed by glucose-assisted thermal annealing. During the synthesis, glucose serving as a small organic molecule can interlay into MoS2 nanosheets, which effectively hinder the aggregation and restacking of MoS2 during the process of heat treatment, retaining a sandwich structure of the composite. The enlarged interlayer distance (approximately 0.98 nm), along with the inserted amorphous carbon, could promote efficient lithium migration into active sites, buffer the volume change and stabilize the electrode structure effectively during the lithium insertion/extraction cycling. Electrochemical tests demonstrate that the MoS2 /GNS-G delivers a high discharge capacity of 1583.0 mA h/g in the initial cycle at current density of 100 mA/g. The specific capacity remained at the relative high value of 673.5 mA h/g even at a current density of 1000 mA/g.