物理化学学报2001，Vol.17Issue(4)：367-371,5.
电化学溶解钛金属直接水解法制备纳米TiO2
Electrochemical Dissolution of Pure Titanium and Direct Hydrolysis for Preparation of Nanocrystalline TiO2
周幸福 1褚道葆 1韩爱杰 1顾家山 1林昌健 2田中群 2谭建光2
作者信息
- 1. 安徽师范大学化学与材料科学学院,
- 2. 厦门大学
- 折叠
摘要
Abstract
Metallic titanium was electrochemically dissoluted in absolute ethanol in the presence of Et4N· Br(as electro-conductive additive),The electrolyte solution was then directly hydrolysized to obtain nanocrystalline TiO2.The powder obtained was calcined at 720℃ for 1 h.FT-IR,Raman spectra,XRD and TEM were used to investigate the structure and particle size of the powder.Studies showed that the nanocrystalline TiO2 prepared by this method was of monocline structure with high textural stability and narrow size distribution of 10－ 20 nm,and its Raman spectra showed a shift of about 25 cm－ 1.The experiments also showed that the product yield could be improved by controlling the temperature under 50－ 60℃ ,selecting R4N· Br as conductive additive and preventing titanium anode from being passivated.The electrochemical dissolution of metal anode may be recommanded as a promising technique for the synthesis of nanomaterials.关键词
电解,钛阳极,钛酸乙酯,水解,纳米TiO2,拉曼光谱分类
化学化工引用本文复制引用
周幸福,褚道葆,韩爱杰,顾家山,林昌健,田中群,谭建光..电化学溶解钛金属直接水解法制备纳米TiO2[J].物理化学学报,2001,17(4):367-371,5.
