| H2SO4中硫脲作用于纯铁电极的腐蚀电化学特征 |
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| 引用本文： | 董俊华,曹楚南林海潮,宋光铃.H2SO4中硫脲作用于纯铁电极的腐蚀电化学特征[J].腐蚀科学与防护技术,1996,8(3):44-48. |
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| 作者姓名： | 董俊华 曹楚南林海潮 宋光铃 |
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| 作者单位： | 中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目；中国科学院百人计划资助项目 |
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| 摘 要： | 用缓蚀剂对电极过程的作用系数分析了硫脲对Fe在H2SO4中腐蚀作用的影响。结果表明,在硫脲浓度极稀时,腐蚀控制由阴极和阳极作用系数共同决定,腐蚀电流随缓蚀剂浓度的升高而增大。在主要的抑制浓度区里,硫脲对Fe的腐蚀控制是由对阴极的作用系数决定的。
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| 关 键 词： | 硫脲 电极 电化学 硫酸 纯铁 腐蚀 |
| 收稿时间： | 1996-05-25 |
| 修稿时间： | 1996-05-25 |
THE ELECTROCHEMICAL CHARACTERISTICS OF CORROSION OF IRON IN H 2SO 4 SOLUTION CONTAINING THIOUREA |
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| DONG Junhua,CAO Chu''''nan,LIN Haichao,SONG Guangling.THE ELECTROCHEMICAL CHARACTERISTICS OF CORROSION OF IRON IN H 2SO 4 SOLUTION CONTAINING THIOUREA[J].Corrosion Science and Protection Technology,1996,8(3):44-48. |
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| Authors: | DONG Junhua CAO Chu'nan LIN Haichao SONG Guangling |
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| Abstract: | The effect of thiourea on corrosion of iron in H 2SO 4 solution is analyzed by the function coefficient of inhibitor for electrode process. The results showed that, when the concentration of thiourea was very low, corrosion contral was determined by both the anodic and the cathodic function coefficient, the corrosion current density was enhanced by increasing the concentration of thiourea. Within the main inhibiting concentration range of thiourea, corrosion contral was determined by the cathodic function coefficient. |
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| Keywords: | thiourea iron electrochemical charactristics function coefficient active energy |
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