离子液体缓蚀剂的研究现状  

Research Status of Ionic Liquid Corrosion Inhibitors

作　　者：姜志阳[1] 郝鑫 JIANG Zhi-yang;HAO Xin(Sinopec Petroleum Engineering Corporation,Dongying 257000,China;Research Institute of Petroleum Development Center,Sinopec Shengli Oilfield Company,Dongying 257000,China)

机构地区：[1]中石化石油工程设计有限公司,山东东营257000 [2]中国石化胜利油田分公司石油开发中心科研所,山东东营257000

出　　处：《材料保护》2022年第5期142-148,共7页Materials Protection

摘　　要：随着世界范围内生态意识和环保意识的增强,绿色环保的腐蚀防护技术变得越来越重要。离子液体缓蚀剂得到越来越多学者的关注。综述了研究较多的离子液体缓蚀剂的种类、发展历史以及研究现状,介绍了量子化学计算和分子动力学模拟在离子液体缓蚀剂方面的应用,同时总结了离子液体缓蚀剂的缓蚀机理。离子液体缓蚀剂可以抑制腐蚀反应的阳极过程和阴极过程,同时存在物理吸附和化学吸附,但目前模拟方法主要集中在分析分子的活性,以及分子在纯水中的吸附构型,没有考虑缓蚀剂分子与其它粒子间的相互作用,模拟环境与实际环境有较大差异,并没有模拟方法来解释缓蚀剂物理和化学吸附过程。总而言之,离子液体缓蚀剂在绿色环保的基础上向着不断提高缓蚀性能的方向发展,但其机理解释目前还存在一定的局限性。With the increasing awareness of environmental protection around the world, the green corrosion protection technology is becoming more and more important. Tonic liquid corrosion inhibitors are getting more and more attention from scholars. In this paper, the types, development history and research status of ionic liquid corrosion inhibitors were reviewed. The application of quantum chemical calculation and molecular dynamics simulation in the field of ionic liquid corrosion inhibitor was studied. And the corrosion inhibition mechanisms of such inhibitors were summerized. The ionic liquid corrosion inhibitors can inhibit the anodic and cathodic processes of corrosion reactions, and both physical adsorption and chemisorption occur. However, current simulation methods focus on analyzing the activity of molecules and the adsorption configuration in pure water. The interaction between the corrosion inhibitor molecules and other particles is not considered. The simulated environments are quite different from the actual ones, and there is no simulation method to explain the physical and chemical adsorption processes of corrosion inhibitors. In all, the ionic liquid corrosion inhibitors will develop in the direction of increasing corrosion inhibition performance on the basis of environmental protection, but there are still certain limitations with regard to the explanation of mechanism.

关 键 词：离子液体 绿色缓蚀剂 腐蚀 吸附机理 分子动力学 密度泛函理论 

分 类 号：TG174.42[金属学及工艺—金属表面处理]