盐酸介质中精氨酸与抗坏血酸复配对铜的缓蚀作用  

Corrosion Inhibition of Complex of Arginine and Antiscorbic Acid for Copper in HCl

作　　者：郑红艾[1] 张大全[1] 沈莉莉[1] 

机构地区：[1]上海电力学院能源与环境工程学院,上海20009

出　　处：《腐蚀与防护》2010年第5期342-344,348,共4页Corrosion & Protection

基　　金：上海市曙光计划项目(O5SG53);上海市重点学科资助项目(P1304);国家自然科学基金资助项目(20776083)

摘　　要：随着铜材料在各领域的广泛应用,其腐蚀与防护问题日益受到重视;氨基酸类化合物价廉无毒,作为缓蚀剂的研究正在日益兴起。本研究采用电化学交流阻抗法和极化曲线法研究了各种浓度精氨酸及其与抗坏血酸复配溶液在0.25 mol/L盐酸溶液中对铜的缓蚀效果。结果表明,精氨酸及其与抗坏血酸复配溶液对铜电极腐蚀的阴极反应都有明显抑制作用。在10-5～10-3mol/L浓度范围内随着精氨酸浓度的增大,缓蚀效果越来越显著。精氨酸与抗坏血酸复配溶液对铜的缓蚀效果较单一精氨酸明显增强,且随着复配溶液浓度增加,缓蚀效果增强。With the increasing application of copper in various fields,more attention is paid to the problems of its corrosion and corrosion inhibition.Because amino-acid compounds are cheap and nontoxic,they have been used as inhibitors more and more widely.The inhibition effect and mechanism of arginine and its complex with antiscorbic acid in 0.25 mol/L HCl were investigated by polarization curves and electrochemical impedance spectroscopy（EIS）.The experimental results show that arginine and the complex solutions both can retard the cathodic process of the copper corrosion reaction.The latter had better inhibition effect.With the increase of concentration（from 10^-5 to 10^-3mol/L,the inhibition efficiency was increased.

关 键 词：铜 缓蚀剂 精氨酸 抗坏血酸 

分 类 号：TG174.42[金属学及工艺—金属表面处理]