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https://hdl.handle.net/2440/130255
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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 1364-5501 |
Statement of Responsibility: | 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 |
Grant ID: | http://purl.org/au-research/grants/arc/DP1094261 |
Published version: | http://dx.doi.org/10.1039/c2jm32822d |
Appears in Collections: | Aurora harvest 8 Chemistry and Physics publications |
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