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Type: Journal article
Title: Facile synthesis of graphene-molybdenum dioxide and its lithium storage properties
Author: Seng, K.H.
Du, G.D.
Li, L.
Chen, Z.X.
Liu, H.K.
Guo, Z.P.
Citation: Journal of Materials Chemistry, 2012; 22(31):16072-16077
Publisher: Royal Society of Chemistry
Issue Date: 2012
ISSN: 0959-9428
Statement of
Kuok Hau Seng, Guo Dong Du, Li Li, Zhi Xin Chen, Hua Kun Liu and Zai Ping Guo
Abstract: Graphene–molybdenum dioxide composites in several ratios have been prepared through a facile synthesis method. Depending on the ratio, the as synthesized composites have either 2-dimensional graphene sheets with MoO2 particles anchored to them or a clustered agglomerate morphology. The composites have been characterised using Raman spectroscopy, X-ray diffraction, and electron diffraction to confirm the monoclinic MoO2 phase that is present. Lithium storage properties of the as-synthesised samples were tested in a coin-type half cell assembly to determine the relationship between the ratio and the electrochemical performance. The sample with highest amount of MoO2 (78 wt%) displayed the most promising lithium storage properties, with stable cycling performance at 0.2 A g−1 that shows negligible capacity loss over 50 cycles, retaining a capacity of 640 mA h g−1. The rate capabilities were also tested, and show a capacity of 380 mA h g−1 at 2.0 A g−1, which is comparable to the theoretical capacity of graphite and previously reported work on similar materials.
Rights: This journal is © The Royal Society of Chemistry 2012.
DOI: 10.1039/c2jm32822d
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Chemistry and Physics publications

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