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URN etd-0910114-061503 Statistics This thesis had been viewed 1104 times. Download 0 times. Author Hsin-ping HO Author's Email Address No Public. Department Chemical Engineering Year 2013 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 85 Title Microwave-assisted hydrothermal synthesis of tin sulfide/reduced graphene oxide nanocomposites as an anode material for high-performance lithium ion batteries. Keyword microwave-assisted hydrothermal lithium-ion battery anode material tin sulfides reduced graphene oxide reduced graphene oxide tin sulfides anode material lithium-ion battery microwave-assisted hydrothermal Abstract In this study, we used the microwave-assisted hydrothermal synthesis to prepare SnSx (x=1, 2) and SnSx/RGO (x=1, 2)composites as anode material for lithium-ion batteries. The SnS and SnS/RGO samples were carried out by a series of analysis, that the crystalline, the morphology was measured by X-ray power diffraction and scanning electron microscope, respectively, and electrochemical characteristic analysis. It can be seen that the capacity of SnS/RGO sample retain 376 mAhg-1 during 50th cycles of charge/discharge process at current density 0.2C, comparing with the capacity of the SnS sample only retain 30 mAhg-1 . This indicates that the combination tin sulfides and reduced graphene oxide of composite indeed improved the electrochemical properties and more stable cyclic performance; as indicate by AC impedance spectra. The SnS2 and SnS2/RGO samples were carried out by a series of analysis, that the crystalline, the morphology was measured by X-ray power diffraction and scanning electron microscope, respectively, and electrochemical characteristic analysis, it can be seen that the capacity of SnS2/RGO sample retain 460 mAhg-1, 342 mAhg-1 and 271 mAhg-1 during 50th cycles of charge/discharge process at different current density 0.1C, 0.5C and 1 C, respectively. In this study, we preliminary compared the experimental data of the SnS/RGO and SnS2/RGO, suggesting the charge/discharge performance of SnS2/RGO is better than SnS/RGO, but we still need to more analysis to support the thesis. Advisor Committee Jeng-yu Lin - advisor
Fu-mi Wang - co-chair
Tsung-wu Lin - co-chair
Files Date of Defense 2014-07-24 Date of Submission 2014-09-10