尿素铁(Ⅲ)配合物的有机溶剂法合成及其热分解反应  

Synthesis of iron(Ⅲ)-urea complex in organic solvent and its thermal decomposition

作　　者：赵斯琴[1] 长山[1] 

机构地区：[1]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022

出　　处：《化学试剂》2010年第2期108-110,共3页Chemical Reagents

基　　金：国家自然科学基金资助项目(20861006);内蒙古自然科学基金项目(2009MS0806)

摘　　要：使用硝酸铁和尿素在乙醇溶剂中合成了尿素铁(Ⅲ)配合物,通过元素分析和红外光谱分析等手段表征其组成为[Fe(CON2H4)6](NO3)3;再采用X射线衍射(XRD)、扫描电镜(SEM)和差热-热重分析(DTA-TG)等手段对所得[Fe(CON2H4)6](NO3)3配合物的热分解反应及其产物进行了研究。结果表明,热分解过程分两步进行,并在空气中200℃热分解后得到γ-Fe2O3纳米粉体。In this work,iron（Ⅲ）-urea complex was synthesized in ethanol.The results of elemental analysis and Fourier transform infrared（FT-IR） spectroscopy suggested that the composition of resulting complex was [Fe（CON2H4）6]（NO3）3.The thermal decomposition mechanism and product of the [Fe（CON2H4）6]（NO3）3 were studied by using differential thermal analysis（DTA）,thermogravimetric（TG） method,and X-ray powder diffractometry（XRD）.Thermal analyses suggested that the thermal decomposition of the complex occurred through a two-stage decomposition mechanism.The result of XRD showed that the product of thermal decomposition of the complex was γ-Fe2O3.

关 键 词：尿素铁(Ⅲ)配合物 热分解 γ-Fe2O3纳米粉体 

分 类 号：O611.4[理学—无机化学]