Chen Liangyuan, Lu Dongzhu, Zhang Yanhu
Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, No. 1 Wenhai Road (Qingdao), Qingdao 266200, China.
Institute of Oceanology, Chinese Academy of Sciences, No. 7 Nanhai Road, Qingdao 266071, China.
Materials (Basel). 2022 Mar 9;15(6):2023. doi: 10.3390/ma15062023.
Most studies on the corrosion inhibition performance of organic molecules and (nano)materials were conducted within "carbon steel/1.0 M HCl" solution system using similar experimental and theoretical methods. As such, the numerous research findings in this system are sufficient to conduct comparative studies to select the best-suited inhibitor type that generally refers to a type of inhibitor with low concentration/high inhibition efficiency, nontoxic properties, and a simple and cost-economic synthesis process. Before data collection, to help readers have a clear understanding of some crucial elements for the evaluation of corrosion inhibition performance, we introduced the mainstay of corrosion inhibitors studies involved, including the corrosion and inhibition mechanism of carbon steel/HCl solution systems, evaluation methods of corrosion inhibition efficiency, adsorption isotherm models, adsorption thermodynamic parameters QC calculations, MD/MC simulations, and the main characterization techniques used. In the classification and statistical analysis section, organic compounds or (nano)materials as corrosion inhibitors were classified into six types according to their molecular structural characteristics, molecular size, and compound source, including drug molecules, ionic liquids, surfactants, plant extracts, polymers, and polymeric nanoparticles. We outlined the important conclusions obtained from recent literature and listed the evaluation methods, characterization techniques, and contrastable experimental data of these types of inhibitors when used for carbon steel corrosion in 1.0 M HCl solution. Finally, statistical analysis was only performed based on these data from carbon steel/1.0 M HCl solution system, from which some conclusions can contribute to reducing the workload of the acquisition of useful information and provide some reference directions for the development of new corrosion inhibitors.
大多数关于有机分子和（纳米）材料缓蚀性能的研究是在“碳钢/1.0 M盐酸”溶液体系中使用类似的实验和理论方法进行的。因此，该体系中的大量研究结果足以进行比较研究，以选择最合适的缓蚀剂类型，通常是指具有低浓度/高缓蚀效率、无毒特性以及简单且经济的合成工艺的缓蚀剂类型。在数据收集之前，为了帮助读者清楚了解评估缓蚀性能的一些关键要素，我们介绍了缓蚀剂研究的主要内容，包括碳钢/盐酸溶液体系的腐蚀和缓蚀机理、缓蚀效率评估方法、吸附等温线模型、吸附热力学参数QC计算、MD/MC模拟以及所使用的主要表征技术。在分类和统计分析部分，作为缓蚀剂的有机化合物或（纳米）材料根据其分子结构特征、分子大小和化合物来源分为六种类型，包括药物分子、离子液体、表面活性剂、植物提取物、聚合物和聚合物纳米颗粒。我们概述了从近期文献中获得的重要结论，并列出了这些类型的缓蚀剂在1.0 M盐酸溶液中用于碳钢腐蚀时的评估方法、表征技术和可对比的实验数据。最后，仅基于碳钢/1.0 M盐酸溶液体系的这些数据进行统计分析，从中得出的一些结论有助于减少获取有用信息的工作量，并为新型缓蚀剂的开发提供一些参考方向。
