采用失重法、动电位扫描法、电化学阻抗法,研究了溶菌酶在硫酸介质中对Q235钢的缓蚀行为。结果表明,溶菌酶是一种缓蚀效果显著的混合型缓蚀剂,吸附行为属于自发的化学吸附,符合Langmuir等温吸附式,缓蚀效率受酸度、温度、缓蚀剂酸泡时间的影响较小。
Corrosion inhibition behavior of lysozyme on Q235 steel in H2SO4 solution was studied by mass loss,potentiodynamic polarization and electrochemical impedance spectroscopy.The results show that lysozyme is a mixed-type inhibitor.The absorption type of Lysozyme on Q235 steel surface is spontaneous chemisorption,and obeys Langmuir isotherm.Inhibition efficiency of lysozyme is excellent and less effected by H2SO4 concentration,solution temperature and the dipping time of lysozyme in H2SO4 solution.
参考文献
| [1] | Pandian Bothi Raja;Mathur Gopalakrishnan Sethuraman .Natural products as corrosion inhibitor for metals in corrosive media - A review[J].Materials Letters,2008(1):113-116. |
| [2] | Nnabuk O. Eddy;Udo J. Ibok;Benedict I. Ita .QSAR and quantum chemical studies on the inhibition potentials of some amino acids for the corrosion of mild steel in H_2SO_4[J].Journal of computational methods in sciences and engineering,2011(1/2):25-43. |
| [3] | 郑红艾,张大全,沈莉莉.盐酸介质中精氨酸与抗坏血酸复配对铜的缓蚀作用[J].腐蚀与防护,2010(05):342-344,348. |
| [4] | 吴伟明,路民旭,程明焱,杜海燕,许立宁.硫酸介质中氨基酸对钢的缓蚀性能[J].腐蚀与防护,2008(12):727-729,741. |
| [5] | Gokhan Gece .Drugs: A review of promising novel corrosion inhibitors[J].Corrosion Science,2011(12):3873-3898. |
| [6] | 闫莹 .新型杂环化合物碳钢酸洗缓蚀剂的合成、评价及机理研究[D].中国科学院海洋研究所,2007. |
| [7] | Kissi M;Bouklah M;Hammouti B;Benkaddour M .Establishment of equivalent circuits from electrochemical impedance spectroscopy study of corrosion inhibition of steel by pyrazine in sulphuric acidic solution[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(12):4190-4197. |
| [8] | 宋伟伟,张静,杜敏.新型不对称双季铵盐缓蚀剂在HCl中对Q235钢的缓蚀行为[J].化学学报,2011(16):1851-1857. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%