NDLI: CTAB-assisted synthesis of single-layer MoS<sub>2</sub>–graphene composites as anode materials of Li-ion batteries

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Weixiang Chen, Dongyun Lee, Jim Yang Wang, Zhen Ma, Lin Huang, Guochuang Chen, Tao Chang, Kun
Copyright Year	2013
Abstract	A facile and scalable process was developed for the synthesis of single-layer MoS2–graphene nanosheet (SL-MoS2–GNS) composites based on the concurrent reduction of (NH4)2MoS4 and graphene oxide sheets by hydrazine in the presence of cetyltrimethylammonium bromide (CTAB), followed by annealing in a N2 atmosphere. The morphology and microstructure of the composites were examined by X-ray diffraction, field emission scanning electron microscopy, high-resolution transmission electron microscopy and Raman spectroscopy. The formation process for the SL-MoS2–GNS composites was also investigated. The SL-MoS2–GNS composites delivered a large reversible capacity and good cycle stability as a Li-ion battery anode. In particular, the composites easily surpassed MoS2 in terms of rate performance and cycle stability at high current densities. Electrochemical impedance spectroscopy revealed that the GNS in the composite not only reduced the contact resistance in the electrode but also significantly facilitated the electron transfer in lithiation and delithiation reactions. The good electrochemical performance of the composites for reversible Li+ storage could be attributed to the synergy between the functions of SL-MoS2 and GNS.
Starting Page	2202
Ending Page	2210
Page Count	9
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	1
Issue Number	6
Journal	Journal of Materials Chemistry A
DOI	10.1039/c2ta00598k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	GNS Raman Li Graphene Nanosheet Hydrazine Bromide Nucleic acid thermodynamics X-ray crystallography Scanning electron microscope High-resolution transmission electron microscopy Raman spectroscopy Anode Dielectric spectroscopy Electrode Electrochemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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