乙二胺改性工艺制备高分散Mg(OH)2颗粒  

Synthesis of Highly-dispersed Mg(OH)_2 Particles via EDA-modification Process

作　　者：袁秋华[1] 陆正武[2] 张培新[1] 罗仲宽[1] 罗雄标[1] 任祥忠[1] 

机构地区：[1]深圳大学化学与化工学院.广东深圳518060 [2]哈尔滨工业大学深圳研究生院,广东深圳518055

出　　处：《材料科学与工程学报》2013年第1期60-63,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(20971088,51174138)

摘　　要：以氯化镁和氢氧化钠为原料,采用乙二胺改性工艺制备了高分散纳米Mg(OH)2颗粒。利用傅里叶变换红外光谱、透射电子显微镜、场发射扫描电子显微镜、能量色散光谱仪、X射线衍射仪以及热解重量分析仪等对产物进行了表征。结果表明,所制备的产物是高产的薄片状结构,具有单分散性,同时Mg(OH)2样品的形貌和分散性能够通过初始Mg2+离子浓度实现可控,此外也探讨纳米Mg(OH)2颗粒的分散机理。Using magnesium chloride and sodium hydroxide as raw materials, highly-dispersed Mg （OH）2 nanoparticles have been prepared by a facile EDA （bidentate ligand EDA=Cz H4 （NH2）2 ）-modification process. The products were subjected to characterizations including Fourier transform infrared spectroscopy （FTIR）, field emission scanning electron microscopy （FESEM）, energy dispersive spectrometer （EDS）, X-ray diffraction （XRD）, and thermogravimetric analysis （TGA/DTA）. The results show that the morphology and dispersion of Mg（OH）2 particles could be well controlled by Mgz＋ starting concentration. The possible mechanism for its dispersion characteristic was also investigated.

关 键 词：氢氧化镁 纳米颗粒 分散性 二齿配合物 

分 类 号：O611.4[理学—无机化学]