酸性介质中 API 5L X60 钢的缓蚀作用：理论与实验方法
Corrosion Inhibition of API 5L X60 Steel in Acid Medium: Theoretical and Experimental Approaches.
作者信息
Arellanes-Lozada Paulina, Cuautli Cristina, Likhanova Natalya V, Desión-Palacios Marichel, Lijanova Irina V, Arriola-Morales Janette, Olivares-Xometl Octavio
机构信息
Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería Química, Av. San Claudio y 18 Sur, Ciudad Universitaria. Col. San Manuel, Puebla, Puebla 72570, México.
Dirección de Investigación, Instituto Mexicano del Petróleo, Eje Central Norte Lázaro Cárdenas No. 152, col. San Bartolo Atepehuacan, G. A. Madero, CDMX 07730, México.
出版信息
ACS Omega. 2025 Apr 28;10(18):18864-18880. doi: 10.1021/acsomega.5c00751. eCollection 2025 May 13.
The properties of the ionic liquid (IL) trimethyldodecyl(tetradecyl)ammonium diphenyl-2,2'-dicarboxylate (CTCAmD) as a corrosion inhibitor (CI) of API 5L X60 steel in 1 M HSO were studied at 298, 308, and 318 K. The inhibition efficiency (IE, %) was established by means of electrochemical techniques. The analysis confirmed that CTCAmD inhibited the corrosion process with a maximal IE of 90 ± 6% at 150 ppm. The inhibitor chemical configuration was a key factor in its physical (cation) and chemical (anion) adsorption on the steel surface, forming a protective film; due to the foregoing, the IL was classified as a mixed-type CI. Finally, the X-ray photoelectron spectroscopy (XPS) analysis confirmed the presence of IL on the metal surface, and scanning electron microscopy (SEM) evidenced less surface damage.
研究了离子液体（IL）三甲基十二烷基（十四烷基）铵二苯基-2,2'-二羧酸酯（CTCAmD）在1M硫酸中作为API 5L X60钢缓蚀剂（CI）在298、308和318K时的性能。通过电化学技术确定了缓蚀效率（IE，%）。分析证实，CTCAmD抑制了腐蚀过程，在150ppm时最大缓蚀效率为90±6%。缓蚀剂的化学结构是其在钢表面物理（阳离子）和化学（阴离子）吸附形成保护膜的关键因素；因此，该离子液体被归类为混合型缓蚀剂。最后，X射线光电子能谱（XPS）分析证实了金属表面存在离子液体，扫描电子显微镜（SEM）显示表面损伤较小。
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