欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用电容测试法和光电流技术研究了X80管线钢在NaHCO3／Na2CO3缓冲溶液中所成钝化膜的半导体性能和光电流特性，分析了成膜电位、成膜时间、Cl^-浓度、溶液pH值以及成膜温度等因素对膜光电流响应的影响．结果表明，X80管线钢钝化膜的Mott—Schottky直线部分的斜率和光电流均为正，表明钝化膜呈现n型半导体特性．随着成膜电位的增加、成膜时间延长、溶液pH值升高、成膜温度及溶液中Cl^-浓度的减小，Mott-Schottky直线部分的斜率和光电流响应均呈增大趋势，表明钝化膜内施主密度减小．
英文摘要：
The semi-conductive property and photo-electrochemical characterization of passive film formed on X80 pipeline steel in NaHCO3 / Na2CO3 buffer solutions were investigated. The factors affecting the photo-electrochemical response of the passive fihn, such as formation potential, formation time, Cl^- concentration, pH value of the buffer solution, and formation temperature, etc., were analyzed. The results showed that the slope of Mott-Schottky plot and the photocurrent were positive, which indicated an n-type semi-conductive property of the passive film. With raising the formation potential, prolonging the formation time, increasing the pH value of the solution, and decreasing the formation temperature and Cl^- concentration, the slopes of Mort Schottky plots and the photocurrent both exihibited an increasing tendency, which showed the donor density of the passive film decreased.
同期刊论文项目
同项目期刊论文
期刊信息
位置：