TiO2的制备及表面修饰工艺对其光电化学阴极保护性能的影响  

Effect of Preparation and Surface Modification of TiO2 on Its Photoelectrochemical Cathodic Protection Performance

作　　者：解璇 刘莉[1] 王福会[1] XIE Xuan;LIU Li;WANG Fuhui(Shenyang National Laboratory for Materials Science,Northeastern University,Shenyang 110819,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]沈阳材料科学国家研究中心东北大学联合研究部,沈阳110819 [2]中国科学院金属研究所,沈阳110016

出　　处：《中国腐蚀与防护学报》2020年第2期123-130,共8页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金(51622106和51871049)。

摘　　要：采用连续离子层吸附反应法在TiO2表面沉积Co(OH)2,并将Co(OH)2热处理转化为CoOx的表面修饰方法制备高性能Co(OH)2/CoOx协同修饰TiO2纳米管光阳极材料。通过探讨Co(OH)2修饰次数、热处理温度以及保温时间,确定光阳极最佳性能的制备工艺条件,从光催化原理出发,阐明Co(OH)2/CoOx修饰提高光电性能机理。Co(OH)2 was deposited firstly on the surface of nanotube TiO2 by successive ionic layer adsorption and reaction method,and then deposited Co(OH)2 was transformed partially into CoOx by post heat treatment,therewith the Co(OH)2/CoOx modified TiO2 nanotube was acquired as high performance photoanode material.By assessing the effect of the times of Co(OH)2 deposition,as well as the temperature and holding time of heat treatment on the performance of the Co(OH)2/CoOx modified TiO2 nanotube,the optimal processing parameters were determined for the preparation of the best photoanode material.Besides,the relevant mechanism was proposed to interpret the role of Co(OH)2/CoO surface modification in the enhancement of photoelectric performance of the TiO2 nanotube.

关 键 词：TIO2 Co(OH)2/CoOx修饰 工艺调控 光电性能 阴极保护 

分 类 号：TG172[金属学及工艺—金属表面处理]