苯丙氨酸和酪氨酸缓蚀剂的缓蚀性能  

Corrosion Inhibition Properities of Phenylalanine and Tyrosine

作　　者：曹贺[1] 张晨[1] 刘瑕[1] 

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2016年第2期101-104,129,共5页Journal of Shenyang University of Chemical Technology

摘　　要：运用极化曲线和交流阻抗等电化学方法,研究苯丙氨酸、酪氨酸在0.1 mol/L的硫酸溶液中对N80低碳钢的缓蚀性能.研究结果表明:两种缓蚀剂都具有较好的缓蚀性能,且缓蚀剂的缓蚀效率随质量浓度的增加而增大,两者均符合Langmuir吸附模型,苯丙氨酸的缓蚀效率达到82.7%,酪氨酸的缓蚀效率达到75.6%,苯丙氨酸的缓蚀性能优于酪氨酸.By electrochemical methods of the polarization curve and AC impedance,phenylalanine and tyrosine for N80 carbon steel in 0. 1 mol / L sulfuric acid solution and the corrosion mechanism of corrosion inhibition were studied. The research results showed that the two kinds of corrosion inhibitors had better corrosion inhibition properties. When the concentration of phenylalanine and tyrosine increased,the efficiency of corrosion inhibitors also increased. The efficiency of phenylalanine was 82. 7 %,and the efficiency of tyrosine was 75. 6 %. The efficiency of phenylalanine was better than that of tyrosine.

关 键 词：苯丙氨酸 酪氨酸 缓蚀剂 极化曲线 交流阻抗 

分 类 号：O646[理学—物理化学] O645[理学—化学]