| 模拟水中铜镍合金B10耐蚀性的光电化学研究 |
| |
| 引用本文： | （徐群杰,万宗跃,周国定,印仁和,曹为民,林昌健.模拟水中铜镍合金B10耐蚀性的光电化学研究[J].中国化学,2009,27(2):253-257. |
| |
| 作者姓名： | （徐群杰 万宗跃 周国定 印仁和 曹为民 林昌健 |
| |
| 作者单位： | 上海电力学院环境工程系，上海 200090 ；2上海大学化学系， 上海 200444；3厦门大学固体表面物理化学国家重点实验室， 厦门361005 |
| |
| 摘 要： | 采用循环伏安、光电化学和电化学阻抗谱技术对模拟水中铜镍合金B10的腐蚀行为进行了研究.在电位从正往负向扫描中 B10表面膜显示p-型光响应,光响应来自电极表面的Cu2O层,但最大光电流比硼砂-硼酸中的要低。B10电极的耐蚀性能随着溶液中Cl-、SO42-和S2-浓度及pH的增加而降低。温度的升高会导致光电流由p-型转为n-型，耐蚀性能急剧下降。电化学阻抗谱测量结果与光电化学方法得到的结果相一致。
|
| 关 键 词： | 白铜B10 模拟水 光电化学 腐蚀 |
| 收稿时间： | 2008-2-19 |
| 修稿时间： | 2008-5-21 |
Photoelectrochemical Study of Corrosion Resisting Property of Cupronickel B10 in Simulated Cooling Water |
| |
| Qunjie XU,Zongyue WAN,Guoding ZHOU,Renhe YIN,Weimin CAO,Changjian LIN.Photoelectrochemical Study of Corrosion Resisting Property of Cupronickel B10 in Simulated Cooling Water[J].Chinese Journal of Chemistry,2009,27(2):253-257. |
| |
| Authors: | Qunjie XU Zongyue WAN Guoding ZHOU Renhe YIN Weimin CAO Changjian LIN |
| |
| Institution: | 1. Tel.: 0086‐021‐65430410‐247;2. Fax: 0086‐021‐65700719;3. Key Laboratory of Control for Electric Power Corrosion and Applied Electrochemistry in Shanghai, Shanghai University of Electric Power, Shanghai 200090, China;4. Department of Chemistry, Shanghai University, Shanghai 200444, China;5. State Key Laboratory of Solid Surface Physical Chemistry, Xiamen University, Xiamen, Fujian 361005, China |
| |
| Abstract: | The corrosion behavior for cupronickel B10 electrode in simulated cooling water has been studied by using cyclic voltammetry, a photocurrent response method and electrochemical impedance spectroscopy (EIS). The cupronickel electrode shows a p‐type photoresponse to positive and negative potential scan, which comes from Cu2O layer on its surface, but its iph,max is less than that in borax buffer solution. The corrosion resisting property of the cupronickel B10 electrode appeared worse with the increase in the concentrations of Cl?, SO42? and S2? ions, as well as with increasing pH. The rise in the temperature may result in a photoresponse changes from p‐type to n‐type, and the corrosion resisting property fell simultaneously. The results of the EIS measurement agree well with those obtained by a photoelectrochemical method. |
| |
| Keywords: | cupronickel alloy (B10) simulated cooling water photoelectrochemistry corrosion |
|
| 点击此处可从《中国化学》浏览原始摘要信息 |
| 点击此处可从《中国化学》下载免费的PDF全文 |
|
