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中国腐蚀与防护学报  2020, Vol. 40 Issue (2): 123-130    DOI: 10.11902/1005.4537.2019.217
  研究报告 本期目录 | 过刊浏览 |
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
解璇1,2, 刘莉1(), 王福会1
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
Effect of Preparation and Surface Modification of TiO2 on Its Photoelectrochemical Cathodic Protection Performance
XIE Xuan1,2, LIU Li1(), WANG Fuhui1
1 Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
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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。
关键词 ： TiO2,  Co(OH)2/CoOx修饰,  工艺调控,  光电性能,  阴极保护    
Abstract：

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.
Key words： TiO2    Co(OH)2/CoOx modification    process control    photoelectric property    cathodic    protection
收稿日期: 2019-06-13     
ZTFLH:  TG172  
基金资助:国家自然科学基金(51622106);国家自然科学基金(51871049)
通讯作者: 刘莉     E-mail: liuli@mail.neu.edu.cn
Corresponding author: LIU Li     E-mail: liuli@mail.neu.edu.cn
作者简介: 解璇，女，1992年生，博士生
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解璇
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引用本文:

解璇, 刘莉, 王福会. 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[J]. 中国腐蚀与防护学报, 2020, 40(2): 123-130.
Xuan XIE, Li LIU, Fuhui WANG. Effect of Preparation and Surface Modification of TiO2 on Its Photoelectrochemical Cathodic Protection Performance. Journal of Chinese Society for Corrosion and protection, 2020, 40(2): 123-130.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2019.217      或      https://www.jcscp.org/CN/Y2020/V40/I2/123

图1  样品制备工艺参数选择流程图
图2  TiO2纳米管材料的SEM微观形貌
图3  不同热处理温度下TiO2开路电位的变化曲线
图4  TiO2不同热处理温度对TiO2保护电流密度的影响
图5  Co(OH)2沉积次数对TiO2保护电位的影响
图6  Co(OH)2沉积次数对CoOx修饰的TiO2保护性能的影响
图7  热处理固定温度对CoOx修饰的TiO2保护电位的影响
图8  不同热处理固定保温时间对CoOx修饰的TiO2保护电位的影响
图9  光照下Co(OH)2/CoOx修饰的TiO2对304不锈钢的光电化学阴极保护机理
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