机构地区: 华南理工大学化学与化工学院化学工程系
出 处: 《现代化工》 2003年第5期25-27,31,共4页
摘 要: 以四氯化钛为原料低温水解 ,在液相中一步简单地制备了金红石相TiO2 ,并且原位制备了一定浓度的纳米TiO2 分散浆料。X射线衍射测试表明此TiO2 呈纯的金红石结构 ,透射电子显微镜观察发现此浆料分散性好 ,可直接在化学复合电镀中应用。采用常规的电镀过程在金属表面形成了TiO2 -Ni复合电镀层 ,比一般的镀镍层均匀、细致。 Nanoscale rutile TiO2 dispersion paste was prepared simply by the hydrolysis of TiCl4 at low temperatures. This TiO2 dispersed paste has high stability and solid content. The paste structure was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results show that TiO2 crystalline structure is of pure rutile and the paste is well dispersed. TiO2-Ni composite coatings are formed by the usual method with adding this TiO2 dispersed paste added directly. The morphology and components of TiO2-Ni composite coatings which are scanned and analyzed by the SEM and EDS show that the appearances of coatings are uniform and fine.