阳极氧化二氧化钛薄膜的光电化学防腐蚀特性  

PHOTO-ELECTROCHEMICAL ANTICORROSION EFFECT OF ANODIC TiO_2 FILMS

作　　者：武朋飞[1] 李谋成[1] 沈嘉年[1] 肖美群[1] 刘东[1] 

机构地区：[1]上海大学材料所,上海200072

出　　处：《中国腐蚀与防护学报》2005年第1期53-56,共4页Journal of Chinese Society For Corrosion and Protection

基　　金：上海市纳米科技专项 (0 3 5 2nm0 74) ;上海市教委项目(0 4AE96)

摘　　要：利用阳极氧化法制备TiO2 薄膜 ,并研究了薄膜的光电化学防腐作用 .XRD和SEM分析表明TiO2 薄膜由非晶和锐钛矿组成 ,其表面形貌较为粗糙 .在紫外光的照射下 ,测试了薄膜在模拟海水中的电极电位、极化曲线、电化学阻抗谱以及与碳钢的耦合电流 .结果表明TiO2 薄膜对碳钢在模拟海水中的腐蚀具有较好的光阴极保护作用 .The photo-electrochemical anticorrosion effect of the TiO_2 films was investigated in 3% NaCl solutions.The TiO_2 films were prepared by using anodization method in alkaline solutions.X-ray and SEM analyses indicated that the TiO_2 films were composed of amorphous and crystalline anatase,and the surface was very rough.Under UV illumination in man-made sea water,the polarization curves and impedance spectrum of TiO_2 and coupling photo-current curve between TiO_2 film and 45# carbon steel were measured.The results showed that the anodic TiO_2 films had photo-electrochemical anticorrosion effect for carbon steel under UV illumination.

关 键 词：TIO2 腐蚀 光电化学防腐蚀效应 阳极氧化 

分 类 号：TG113.2[金属学及工艺—物理冶金]