铁在含有SCN~-的高氯酸钠及硫酸钠溶液中的腐蚀电化学行为

中国腐蚀与防护学报

1990, Vol. 10

Issue (2): 109-118

研究报告

本期目录 | 过刊浏览

铁在含有SCN~-的高氯酸钠及硫酸钠溶液中的腐蚀电化学行为

梁峰;曹楚南;林海潮;王友;周盛奇

中国科学院金属腐蚀与防护研究所腐蚀科学开放实验室;中国科学院金属腐蚀与防护研究所腐蚀科学开放实验室;中国科学院金属腐蚀与防护研究所腐蚀科学开放实验室;中国科学院金属腐蚀与防护研究所腐蚀科学开放实验室;中国科学院金属腐蚀与防护研究所腐蚀科学开放实验室

EFFECT OF THIOCYANATE ION ON THE ELECTROCHEMICAL BEHAVIOR OF IRON IN THE ACIDIC PERCHLORATE AND SULPHATE SODIUM SOLUTIONS

Liang Fen Cao Chunan Lin Haichao Wang You and Zhou Shenqi (Institute of Corrosion and Protection of Metals; Academia Sinica)

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摘要: 利用稳态恒电流极化曲线测量研究了纯铁在除氧的SCN~-+NaClO_4及SCN~-+Na_2SO_4体系中(总离子强度1N)的腐蚀电化学行为。结果表明,铁在这两种体系中的腐蚀电化学行为相同。SCN~-在低浓度的情况下(C_(SCN)-≤0.05N),同时阻滞铁的阳极溶解及阴极析氢过程;SCN~-在较高的浓度下(C_(SCN)->0.1N)作为促进剂参与铁的阳极溶解过程,而阻滞阴极析氢过程。OH~-对铁的阳极溶解起促进作用。得到了铁在不同浓度的SCN~-范围内的阳极溶解及阴极析氢过程的动力学经验方程,提出了相应的反应机理。

Abstract：The effect of thiocyanate ion on the electrochemical behavior of armc6 iron in deoxygenated acidic perchlorate and sodium sulphate solutions(total ionic strength 1N) has been investigated by means of galvanostatic polarization measurements under steady-state conditions. The results of investigations show that the electrochemical behavior of iron in perchlorate solutions in the absence and presence of SCN~- is identical with that obtained in the corresponding sodium sulphate solutions. In different SCN"-concentration ranges thiocyanate ion exerts quite different influence on the electrochemical behavior of iron. At low SCN"-concentration range(C_(SCN~-≤0.05N) thiocyanate ion inhibits both iron anodic dissolution and hydrogen evolution reactions, in higher SCN~-- concentration solutions(C_(SCN~-≥0.lN) thiocyanate ion acts as an accelerator for iron anodic dissolution but impedes hydrogen evolution process on iron electrode. Kinetic models which may elucidate the experimental results are proposed.

收稿日期: 1990-04-25

基金资助:国家自然科学基金

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引用本文:

梁峰;曹楚南;林海潮;王友;周盛奇. 铁在含有SCN~-的高氯酸钠及硫酸钠溶液中的腐蚀电化学行为[J]. 中国腐蚀与防护学报, 1990, 10(2): 109-118.
. EFFECT OF THIOCYANATE ION ON THE ELECTROCHEMICAL BEHAVIOR OF IRON IN THE ACIDIC PERCHLORATE AND SULPHATE SODIUM SOLUTIONS. J Chin Soc Corr Pro, 1990, 10(2): 109-118.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1990/V10/I2/109

[1] Hilbert, F; Miyoshi, Y.; Eichkorn, G.; Lorenz, W.J., J.EleCtrochem.Soc.,118, 1919 (1971)
[2] Heusler, K.E., Z.Elektrochem., 62, 582(1958)
[3] Bockeris, J.OM.; Drazic, D., Electrochim.Acta, 7, 293(1962)
[4] Lor en z, W.J.; Yamaka, H.; Fisher, H., Bunsenher, Phys.Chem. ,67, 935(1963)
[5] Chin, R.G.; Nobc, K., J.EleCtrochem.Soc., 119, 1457(1972)
[6] Kuo, H.C.; Nobe, K., J.EleCtrochem.Soc., 125, 853 (1973)
[7] Darwish, N.A.; Hilbert, F.; Lorenz, W.J.; Rosswag, H., Electrochim. Acta,18, 421(1968)
[8] 毕新民、曹楚南,中国腐蚀与防护学报,3,199(1983)
[9] Cafferty, E.M.; Hackerman, N., J.EleCtrochem.Soc., 119, 999 (1(?)2)
[10] 陈永清,第五届全国缓蚀剂学术会议论文集,1987,苏州
[11] 姚禄安等,第五届全国缓蚀剂学术会议论文集,1987,苏州
[12] 曹楚南著,腐蚀电化学原理,化学工业出版社,1985,P132
[13] Conway, B.E.; Theory and Principles of Electrodes Processes, 1965, New York.
[14] Jesionek, M., et al., Corrosion Sci., 23, 183 (1983)

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