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气相法合成MoS₂纳米管的研究

Study on Formation of MoS₂ Nanotubes by Gas Phase Reaction

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【Author】 GAO Bin1,2,ZHAO Peng3,XU Qi-ming1,SONG Li-xun2,LI Jun-sheng1(1.Institute of Materials Science and Engineering,Xi’an University of Architecture & Technology,Xi’an 710055,Shanxi,China;2.College of Science,Xi’an Polytechnic University,Xi’an 710048,Shanxi,China;3.College of Earth Science & Land Resourses,Changan University,Xi’an 710054,Shanxi,China)

【机构】西安建筑科技大学材料学院；长安大学资源学院；西安工程大学理学院；西安建筑科技大学材料学院陕西西安710055；陕西西安710048；陕西西安710054；陕西西安710055；

【摘要】采用商业MoO3粉和单质S为原料,在高纯(99.999%)Ar气氛中,在800￣900℃温度范围内,在石英管式气氛炉中制备合成了MoS2纳米管,用X-射线衍射(XRD)和透射电子显微镜(TEM)对产品进行了表征。分析了MoS2纳米管的形成机理以及反应温度、气流速度、保温时间对实验结果的影响。结果表明,在800～900℃温度范围内,具有一定的载气气流速度时即可合成MoS2纳米管,保温时间对MoS2纳米管的直径大小、分布没有影响。更多还原

【Abstract】 MoS2 nanotubes are prepared by chemical vapour deposition reaction of commercial MoO3 powder and S in a conventional tube furnace at 800~900℃ under high pure(99.999%)argon atmosphere.The nanotubes are characterized by X-ray powder diffraction(XRD) and transmission electron microscopy(TEM).The growth mechanism of MoS2 nanotubes and influences of temperature,argon flow rate and time of heat treatment on product are studied.The results show that MoS2 nanotubes are only obtained from 800℃ to 900℃ with a suit argon flow rate,and time of heat treatment handly influence on diameters distributing of MoS2 nanotubes.更多还原