氨基乙酸辅助化学液相沉积制备花状氢氧化镁  

Synthesis and characterization of flower-like Mg(OH)_2 via glycine-assisted chemical-liquid-deposition process

作　　者：邹光龙[1,2] 陈卫祥[1] 刘润[1] 徐铸德[1] 

机构地区：[1]浙江大学化学系,杭州310027 [2]贵州民族学院化学与环境科学学院,贵阳550025

出　　处：《中国科技论文在线》2008年第9期649-653,共5页

基　　金：教育部博士点专项基金(20050335086);国家自然科学基金(50171063)

摘　　要：以金属镁片为前驱体,用氨基乙酸辅助化学液相沉积方法在室温下合成具有三维花状形貌的氢氧化镁纳米结构,并用X-射线衍射(XRD)、扫描电镜(SEM)、红外光谱(IR)和热分析技术对氢氧化镁样品进行表征。结果表明三维花状形貌的氢氧化镁是由氢氧化镁纳米薄片组装而成,并具有高的纯度。初步分析氨基乙酸辅助化学液相沉积法制备花状氢氧化镁的可能机理。这种方法具有反应条件温和、方便等特点,并可以应用于制备其它不同形貌的金属氢氧化物或氧化物。Complex 3D flower-like Mg（OH）2 microarchitectures on a magnesium substrate have been synthesized from the natural oxidation of metal in the presence of glycine at ambient conditions. The resultant 3D flower-like Mg（OH）2 sample was characterized by XRD, SEM, IR and thermal analysis technologies. The results show that the 3D flower-like Mg（OH）2 has high purity and is built up of ultrathin nanowalls. The possible formation mechanism of chemical-liquid-deposition synthesis of the flower-like Mg（OH）2 microstructure was also investigated. This method can also be applied in preparing of other metal hydroxide or oxide with ubiquitous morphologies.

关 键 词：无机化学 氢氧化镁 微/纳米结构 化学液相沉积 氨基乙酸 

分 类 号：O614.22[理学—无机化学]