溶剂热法制备纳米MnOOH  

Synthesis of nanosized MnOOH via solvothermal route

作　　者：陈琳[1] 田俐[2] 李帅[2] 朱金良[2] 吕数子[2] 

机构地区：[1]湖南科技大学学生工作处,湖南湘潭411201 [2]湖南科技大学材料科学与工程系,湖南湘潭411201

出　　处：《化学研究》2011年第1期53-57,共5页Chemical Research

基　　金：中南大学博士后基金(1332/74341015511);湖南科技大学博士启动基金(E51079);教育科研基金(G30953)资助项目

摘　　要：MnOOH在常温常压下为黑色固体粉末,经氧化或还原可制成电子工业中生产锰锌铁氧体软磁材料的重要原料.以KMnO4与MnSO4为原料,在水与正丙醇混合溶剂中反应制备了MnOOH纳米棒;采用X射线粉末衍射仪（XRD）、差热-热重（DTA-TG）分析系统、红外光谱仪（IR）,以及扫描电镜（SEM）、透射电镜（TEM）、X射线能谱仪（EDS）等分析了产物的物相、结构、形貌及组成;并研究了反应温度、水热时间及溶剂对纳米级MnOOH组成以及形貌和结构的影响.结果表明：采用溶剂热法,在140~220℃,6~12 h条件下可得到长达数微米、直径约为50 nm的MnOOH纳米棒;在MnOOH形成过程中,正丙醇起着至关重要的作用.Black powder MnOOH can be oxidized or reduced to generate raw materials for producing zinc manganese iron oxide magnetic ferrite materials in electronics industry.KMnO4 and MnSO4 were used as raw materials to synthesize MnOOH nanorods in mixed solvent of water and propanol.The phase,structure,morphology and composition of the products were analyzed by means of X-ray diffraction,differential thermal analysis,infrared spectrometry,scanning electron microscopy,transmission electron microscopy,and energy dispersive spectrometry.The influence of experiment conditions,including reaction temperature,time and solvent,on the phase and shape of nanosized MnOOH were studied.Results show that as-prepared MnOOH nanorods with a length of several microns and diameter of 50 nm could be obtained via solvothermal route at a temperatures of 140-220 ℃ and time of 6-12 h.Propanol played a significant role in the formation of nano-sized MnOOH.

关 键 词：溶剂热法 纳米MnOOH 制备 

分 类 号：O614.7[理学—无机化学]