采用电化学方法,研究了L-苯丙氨酸对Q235钢在0.5 mol/L H2SO4溶液中的缓蚀作用及缓蚀机理,分析了其缓蚀剂类型.结果表明:L-苯丙氨酸的缓蚀效率随浓度的增加而增大,而且随着温度的升高,Q235钢表面单个活性位点上吸附的缓蚀剂分子数量增加,缓蚀效率也增大；L苯丙氨酸属于混合抑制型缓蚀剂,作用机理为几何覆盖效应,其在Q235钢表面的吸附为单分子吸附,且吸附规律符合El-Awady动力学模型.
参考文献
| [1] | 汤兵,陈欣义.酸洗过程中的缓蚀剂[J].清洗世界,2006(02):22-28. |
| [2] | 许淳淳,何海平.钨酸钠与十二烷基苯磺酸钠协同缓蚀作用研究[J].表面技术,2005(03):33-35. |
| [3] | 王慧龙,郑家燊.环境友好缓蚀剂的研究进展[J].腐蚀科学与防护技术,2002(05):275-279. |
| [4] | H. Ashassi-Sorkhabi;Z. Ghasemi;D. Seifzadeh .The inhibition effect of some amino acids towards the corrosion of aluminum in 1 M HCl + 1 M H_2SO_4 solution[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(1/4):408-418. |
| [5] | AKSUT A A;Bilgic S .The Effect of Amino Acids on the Corrosion of Nickel in H2SO4[J].Corrosion Science,1992,33(03):379-387. |
| [6] | 曹楚南.腐蚀电化学原理[M].北京:化学工业出版社,2008:195-215. |
| [7] | EL-AWADY A A;ABD-EL-NABEY B A;AZIZ S G .Kinetic-thermodynamic and Adsorption Isotherms Analyses for the Inhibition of the Acid Corrosion of Steel by Cyclic and Open-chain Amines[J].Journal of the Electrochemical Society,1992,139:2149-2154. |
| [8] | 刘福国,杜敏,张静,仇萌.咪唑啉衍生物缓蚀剂对碳钢在CO2盐水中的缓蚀机理[J].物理化学学报,2008(01):138-142. |
| [9] | ATEYA B G;EL-ANADOULIA B E;EL-NIZAMY F M .The Adsorption of Thiourea on Mild Steel[J].Corrosion Science,1984,24(06):509-515. |
| [10] | (O)ZCAN Muzaffer,KARADA(G) Faruk,DEHRI (I)lyas.半胱氨酸在碳钢与硫酸界面的缓蚀行为[J].物理化学学报,2008(08):1387-1392. |
| [11] | Testing validity of the Tafel extrapolation method for monitoring corrosion of cold rolled steel in HCl solutions - Experimental and theoretical studies[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2010(1):140. |
| [12] | 王春涛,陈慎豪,赵世勇,李德刚.烯丙基硫脲和十二烷基硫醇对铜的缓蚀作用[J].化学学报,2003(02):151-155. |
| [13] | H. Ashassi-Sorkhabi;E. Asghari .Effect of hydrodynamic conditions on the inhibition performance of L-methionine as a "green" inhibitor[J].Electrochimica Acta,2008(2):162-167. |
| [14] | 邵海波,王建明,张昭,张鉴清,曹楚南.钙作为合金元素对铝在碱溶液中的缓蚀作用及其与酒石酸盐的协同效应[J].化学学报,2003(09):1420-1424. |
| [15] | 李言涛,吴茂涛,姜信德,李再峰.羧甲基壳聚糖与其他缓蚀剂的协同缓蚀效能[J].装备环境工程,2010(01):1-5. |
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%