温度对水热法合成二硫化钼结构的影响  

Effect of Temperature on Structure of Molybdenum Disulfide Synthesized by Hydrothermal Method

作　　者：孙娴 常芳娥[1] 吴新明[1] 坚佳莹 王霞[1] SUN Xian;CHANG Fang’e;WU Xinming;JIAN Jiaying;WANG Xia(School of Materials and Chemical Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学材料与化工学院,西安710021

出　　处：《西安工业大学学报》2018年第6期602-607,共6页Journal of Xi’an Technological University

基　　金：国家自然科学基金(51671151);陕西省教育厅科研计划项目(16JK1380)

摘　　要：为了研究水热合成法中温度对制备二硫化钼(MoS2)的影响,文中以仲钼酸铵和硫脲为原料,采用水热法分别在120℃、160℃、200℃、230℃和260℃的温度下反应合成了MoS2,探究了温度对于MoS2结构和形貌的影响.通过电子天平、X射线衍射仪(XRD)、傅里叶-红外光谱(FTIR)、热失重分析仪(TGA)、扫描电子显微镜(SEM)和X射线光电子能谱(XPS)对产物进行了测试与表征.研究结果表明:反应温度对于MoS2的生长,结晶化程度和粒径,以及微观形貌有着显著的影响;反应温度为230℃时,MoS2的产量较多,热稳定性好,纯度和结晶化程度均较高,形貌规整且表面光滑圆润,微观片层结构明显,分布较为均匀.The paper aims to study the effect of temperature on the preparation of molybdenum disulfide(MoS2)by the hydrothermal method.With ammonium molybdate and thiourea as raw materials,MoS2 was synthesized by the hydrothermal method at 120 ℃,160 ℃,200 ℃,230 ℃ and 260 ℃,and then the influence of temperature on its structure and morphology was studied.The products were tested and characterized by using an Electronic balance,XRD,FT-IR,TGA,SEM and XPS.The results show that the reaction temperature has a significant influence on the products’growth,crystallization degree,particle size and microscopic morphology.With the reaction temperature at 230 ℃,MoS2 has a higher yield,better thermal stability,higher purity and crystallinity.The nanospheres have regular morphology,smooth surface,obvious microlayers and uniform distribution.

关 键 词：二硫化钼 仲钼酸铵 硫脲 水热合成 反应温度 

分 类 号：O631.3[理学—高分子化学]