钨酸锰纳米线的水热法制备与表征  

Hydrothermal Preparation and Characterization of MnWO4 Nanowires

作　　者：王永刚[1] 杨琳琳[1] 王玉江[1] 韩高荣[2] Wang Yonggang;Yang Linlin;Wang Yujiang;Han Gaorong(Materials Science and Engineering School, Luoyang Institute of Science and Technology, Luoyang 471023, China;School of Materials Science and Engineering, Zhej iang University, Hangzhou 310027, China)

机构地区：[1]洛阳理工学院材料科学与工程学院,河南洛阳471023 [2]浙江大学材料科学与工程学院,杭州310027

出　　处：《微纳电子技术》2018年第6期455-459,共5页Micronanoelectronic Technology

基　　金：河南省高校青年骨干教师资助项目(2014GGJS-122);国家建筑材料行业科技创新计划资助项目(2013-M3-7)

摘　　要：以MnCl2，MnC2O4和Na2WO4为反应前驱体，以KOH为矿化剂，在没有采用任何表面活性剂和模板的条件下，采用水热法成功制备出MnWO4晶体。用X射线衍射（XRD）和透射电子显微镜（TEM）对制备出的MnWO4晶体的结构和形貌进行了表征，并对MnWO4晶体的形成机理进行了初步探讨。结果表明，反应前驱体和pH值可以控制MnWO4晶体的一维取向生长。当以MnCl2作为锰源，随着pH值的升高，制得的MnWO4晶体的形貌由球形向棒状转变，制得的MnWO4纳米棒的长度约为200nm，直径约为30nm。而当采用MnC2O4作为锰源，当PH值升高时，制得的MnWO4晶体的形貌由纳米棒向纳米线转变，最终制得的MnWO4纳米线的长度为1～1．5μm，直径为20-50nm。Using MnC12, MnC204 and NazWO4 as precursors and KOH as mineralizer, MnWO4 crystallites were successfully prepared with the hydrothermal method without any surfactants and templates. The structure and morphology of the prepared MnWO4 crystallites were characterized by the X-ray diffraction （XRD） and transmission electron microscopy （TEM）. The formation mechanism of the MnWO4 crystallites was preliminarily discussed. The results show that the pH value and precursor can control the one-dimensional orientation growth of the MnWO4 crystal- lites. When MnC12 is used as the manganese source, the morphology of the prepared MnWO4 crystallites changes from sphericity to rod shape with the increase of the pH value, the length and diameter of the prepared MnWO4 nanorods are about 150 nm and 30 nm, respectively. When MnC2O4 is used as the manganese source, the morphology of the prepared MnWO4 crystallites changes from nanorod to nanowire with the increase of the pH value. Finally, the length and diameter of the prepared MnW04 nanowires are 1 - 1.5 μm and 20 - 50 nm, respectively.

关 键 词：钨酸锰(MnWO4) 纳米线 水热法 纳米棒 形貌表征 

分 类 号：TB383[一般工业技术—材料科学与工程]