| 模拟水中白铜B30耐蚀性影响因素的光电化学研究 |
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| 引用本文： | 徐群杰,万宗跃,印仁和,朱律均,曹为民,周国定,林昌健.模拟水中白铜B30耐蚀性影响因素的光电化学研究[J].化学学报,2007,65(18):1981-1986. |
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| 作者姓名： | 徐群杰 万宗跃 印仁和 朱律均 曹为民 周国定 林昌健 |
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| 作者单位： | 上海电力学院环境工程系,国家电力公司热力设备腐蚀与防护部级重点实验室,上海,200090;上海电力学院环境工程系,国家电力公司热力设备腐蚀与防护部级重点实验室,上海,200090;上海大学理学院化学系,上海,200444;上海大学理学院化学系,上海,200444;厦门大学固体表面物理化学国家重点实验室,厦门,361005 |
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| 基金项目： | 国家自然科学基金
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上海市"曙光计划"
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上海市教委资助项目
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上海市科技攻关项目
,
国家重点实验室基金
,
上海市重点学科建设项目 |
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| 摘 要： | 用动电位伏安法和光电化学方法对模拟水中白铜B30耐蚀性影响因素进行了研究. 白铜B30表面膜显示p-型光响应, 光响应来自电极表面的Cu2O层, 在模拟水溶液中表面膜的半导体性质会发生转变, 由p-型转为n-型; 在不同 Cl－, SO42－浓度的模拟水溶液中, 电位正向扫描时呈现阳极光电流, 电位负向扫描时随着Cl－, SO42－离子浓度的增加, 光响应由p-型向n-型转变, 阳极光电流峰面积与阴极光电流峰面积之比增大, 耐蚀性能降低; 随着温度的升高, 白铜B30的耐蚀性能降低; 在pH＝7～9之间, 其耐蚀性能随着pH的升高而提高, 当pH＞9时, 其耐蚀性能随着pH的升高呈降低趋势.
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| 关 键 词： | 白铜B30 模拟水 光电化学 腐蚀 |
| 收稿时间： | 2007-1-15 |
| 修稿时间： | 2007-01-15 |
Photoelectrochemical Study of Influence Factors on Corrosion Resistance of Cupronickel B30 in Simulated Water |
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| XU,Qun-Jie,WAN,Zong-Yue,YIN,Ren-He,ZHU,Lü-Jun,CAO,Wei-Min,ZHOU,Guo-Ding,LIN,Chang-Jian.Photoelectrochemical Study of Influence Factors on Corrosion Resistance of Cupronickel B30 in Simulated Water[J].Acta Chimica Sinica,2007,65(18):1981-1986. |
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| Authors: | XU Qun-Jie WAN Zong-Yue YIN Ren-He ZHU Lü-Jun CAO Wei-Min ZHOU Guo-Ding LIN Chang-Jian |
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| Institution: | (1 Key Laboratory of State Power Corporation of China, Department of Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090)(2 Department of Chemistry, Shanghai University, Shanghai 200444)(3 State Key Laboratory of Solid Surface Physical Chemistry, Xiamen University, Xiamen 361005) |
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| Abstract: | Influence factors on semiconduction properties of oxide films on a cupronickel electrode in the simulated water was studied by cyclic voltammetry and photocurrent response method. The cupronickel electrode showed p-type photoresponse, which came from Cu2O layer on its surface. The photoresponse changed to n-type in the simulated water. The transition from p-type to n-type might be related to the doping of Cl－ and SO42－ anions into Cu2O film. It did not show n-type photoresponse when the cupronickel electrode was immersed in the simulated water containing some sulfide. It was shown that the degree of corrosion increased with the concentration of these anions and temperature. In addition, as the pH increased between 7 and 9, the corrosion resistance of B30 was enhanced, while it lowered as the pH was beyond 9. |
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| Keywords: | cupronickel alloy simulated water photoelectrochemistry corrosion |
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