Synthesis of SiOx Nano-Powders Using a Microwave Plasma Torch at Atmospheric Pressure  

作　　者：Dong Hun Shin Yun Seok Choi Dong Jin Ku Yong Cheol Hong Bong Ju Lee Dong Hun Shin;Yun Seok Choi;Dong Jin Ku;Yong Cheol Hong;Bong Ju Lee(Department of Advanced Green Energy Environment, Handong Global University, Pohang, Korea;Plasma Technology Research Center, National Fusion Research Institute, Gunsan, Korea;Department of Advanced Green Energy Environment, Handong Global University, Pohang, Korea)

机构地区：[1]Department of Advanced Green Energy Environment, Handong Global University, Pohang, Korea [1]Plasma Technology Research Center, National Fusion Research Institute, Gunsan, Korea [2]Department of Advanced Green Energy Environment, Handong Global University, Pohang, Korea

出　　处：《Soft Nanoscience Letters》2016年第2期31-36,共6页软纳米科学报（英文）

摘　　要：The silicon oxide nano-powders (SiO_x-NPs) were obtained in an atmospheric microwave plasma torch using a gas-phase silicon tetrachloride (SiCl₄) with N₂ and H₂. The gas-phase SiCl₄ was injected with H₂ gas into the microwave plasma torch generated by N₂ and air swirl gas, and then the dark brown powders were deposited on the inner wall of a quartz tube. The sample was analyzed by an X-ray photoelectron spectroscopy (XPS), a scanning electron microscope (SEM), an energy dispersive spectrometer (EDS), and an X-ray diffraction (XRD). The average size and oxidation x values of synthesized SiO_x-NPs were approximately 230 nm and 0.91, respectively. Furthermore, the volumetric charge capacity is 1127 mAh/g and has 89.2% retention after 100 cycles.The silicon oxide nano-powders (SiO_x-NPs) were obtained in an atmospheric microwave plasma torch using a gas-phase silicon tetrachloride (SiCl₄) with N₂ and H₂. The gas-phase SiCl₄ was injected with H₂ gas into the microwave plasma torch generated by N₂ and air swirl gas, and then the dark brown powders were deposited on the inner wall of a quartz tube. The sample was analyzed by an X-ray photoelectron spectroscopy (XPS), a scanning electron microscope (SEM), an energy dispersive spectrometer (EDS), and an X-ray diffraction (XRD). The average size and oxidation x values of synthesized SiO_x-NPs were approximately 230 nm and 0.91, respectively. Furthermore, the volumetric charge capacity is 1127 mAh/g and has 89.2% retention after 100 cycles.

关 键 词：Silicon Oxide Secondly Battery Microwave Plasma Torch Volumetric Charge Capacity Oxidation Value 

分 类 号：TB3[一般工业技术—材料科学与工程]