酒石酸钛(IV)配合物的合成和热性质研究

Study on the Synthesis and Thermal Decomposition Reaction of Tiranium (IV) Tartarate

通过四氯化钛与酒石酸反应，制得了新的固态配合物Ｔｉ２Ｏ２（ＯＨ）２Ｃ４Ｈ４Ｏ６·３Ｈ２Ｏ。用元素分析、Ｘ－射线粉末衍射，ＩＲ和ＴＧ分析确定了产物的组成。ＴＧ和ＤＳＣ研究了它在空气氛围下的热分解特性，计算机求解热分解反应各阶段的活化能Ｅａ，反应级数ｎ、焓变面△ｒＨ和熵变面△ｒＳ。在５５０℃灼烧１小时，可得锐钛型ＴｉＯ２。

New solid compound of Ti2O2(OH)2C4H4O6. 3H2O was synthesized by the reaction of titaniumtetrachloride with tartaric acid.Its composition was determined by the methods of elemental analyzis X-ray,IR,TGanalyses.The thermal decomposition reaction of the complex in air was studied. The activation energy Ea,reaction order n,enthalpy change △r.H and entropy change △r,S were determined from TG and DSC curves.Purerse anatase TiO2was obtained by heating the complex at 550℃ for 1 hour.