酸性溶液中有机胺在铁表面的吸附行为

中国腐蚀与防护学报

1986, Vol. 6

Issue (4): 289-295

研究报告

本期目录 | 过刊浏览

酸性溶液中有机胺在铁表面的吸附行为

周盛奇;曹楚南

中国科学院金属腐蚀与防护研究所;中国科学院金属腐蚀与防护研究所

ADSORPTION OF ORGANIC AMINES ON IRON SURFACE FROM ACIDIC SOLUTIONS

Zhou Shengqi and Cao Chunan(Iustitute of Corrosion and Protectien of Metals; Academia Sinica)

全文: PDF(572 KB)

摘要: 用弱极化曲线拟合和交流阻抗技术测定了铁在含或不含Cl~-的癸胺(DA),二戊胺(DPA)和十二烷基胺(DDA)酸性除氧溶液中腐蚀速度和界面电容。计算了有机胺在铁表面的吸附覆盖度随浓度的变化。结果表明,无论溶液中是否存在Cl~-,有机胺在两个不同的吸附区间内分别遵循Temkin等温吸附和Frumkin等温吸附。讨论了有机胺吸附对界面电容的影响,提出了一种酸性水溶液中有机胺分子在铁表面上吸附的模型,据此对有机胺的缓蚀作用及与Cl~-的协同效应等进行了理论解释。

Abstract：Corrosion rate and interface capacity of iron in acidic perchloride solutions cantaining decylamine(DA), dipentylamine(DPA) and dodecylamine(DDA) with or without chloride ion have been measured by curve-fitting method of weak polarization data and AC impedance technique. The degree of coverage of organic amines on Fe surface has been calculated as a function of bulk concentration of amines. It has been found that organic amines are adsorbed from the solutions both with and without Cl- on the Fe surface according to Temkin isotherm and Frumkin isotherm in two different regions. The effect of adsorbed organic amine molecules on the interface capacity between electrode and solution is discussed, and a model for discribing the adsorption of organic amine molecules from acidic solutions on the Fe surface is proposed, with which the experimental results of the inhibition of organic amines and the synergistic effect of Cl- ion with them are interpreted.

收稿日期: 1986-08-25

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	周盛奇
	曹楚南
44.8K

引用本文:

周盛奇;曹楚南. 酸性溶液中有机胺在铁表面的吸附行为[J]. 中国腐蚀与防护学报, 1986, 6(4): 289-295.
. ADSORPTION OF ORGANIC AMINES ON IRON SURFACE FROM ACIDIC SOLUTIONS. J Chin Soc Corr Pro, 1986, 6(4): 289-295.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1986/V6/I4/289

[1] Chiao, S. J.; Mann, C. A.; Ind. Eng. Chem., 39, 910(1974)
[2] Bockris, J. O'M.; Swinkels, D. A. J., J. Electrochem. Soc., 111, 736(1964)
[3] Dmanskirt, B. B.; Survila, A. A.; Rybalka, L. E., Electrochimia, 3, 146(1967)
[4] Hackerman; N., Snavely, Jr. E. S.; Payne, Jr. S., J. Electrochem. Soc., 113 677(1966)
[5] Marakawa., T.; Nayaura, S., Corros. SCi., 7, 79(1967)
[6] Atkinson; A. Marshall, A., Corros. Sci., 18, 427(1978)
[7] Ruaresh, H. B.; Mayanna, S. M., Corros. Sci., 19 361(1979)
[8] Blomgren, E., Bockris, J. O'M.; Jesch, C., J. phys. Chem., 65, 2000(1961)
[9] 查全性,《电极过程动力学导论》,科学出版社(1976)
[10] Smialowska; Z. S.; Ieizorek, G., Corros. Scr., 11, 843(1971)
[11] 曹楚南,中国腐蚀与防护学报,5(3) ,155(1985)
[12] 周盛奇,曹楚南,中国腐蚀与防护学报,6(4) ,283(1986)
[13] Frumkin, A. N., Z. phys., 35, 792(1962)
[14] 天津大学等,《有机化学》(1978)

No related articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed