Journal of the Taiwan Institute of Chemical Engineers ( IF 5.7 ) Pub Date : 2021-04-29 , DOI: 10.1016/j.jtice.2021.04.035 Jian Zhang , Wenpo Li , Xiuli Zuo , Yanyun Chen , Wei Luo , Yu Zhang , Anqing Fu , Bochuan Tan , Shengtao Zhang
The propensity of acid corrosion for X65 steel substrate leads to application restrictions. In this research, we develop an efficient and new corrosion inhibitor, S-(benzo[d]thiazol-2-yl) (E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate (BTAE), as a first example of a sulfuric acid medium additive containing both benzothiazole and aminothiazole with multiple anchoring centers, which can inhibit the X65 corrosion in the sulfuric acid medium. The electrochemical experiment test shows that BTAE can effectually control the anodic reaction of X65 steel and belongs to the anodic type corrosion inhibitor. The corrosion inhibition efficiency of BTAE can still be maintained above 97% within a certain temperature range. The surface topography analysis and electrochemical test results are highly consistent. The adsorption of BTAE onto the interface of X65 steel conforms to the Langmuir model. Quantum chemistry and molecular dynamics simulation results have proved that BTAE is an excellent corrosion inhibitor.
中文翻译:
结合实验和理论研究洞察新型噻唑衍生物的抗腐蚀性能
X65 钢基材的酸腐蚀倾向导致应用限制。在这项研究中,我们开发了一种高效的新型缓蚀剂 S-(benzo[ d]噻唑-2-基) (E)-2-(2-氨基噻唑-4-基)-2-(甲氧基亚氨基)乙硫酸酯 (BTAE),作为硫酸介质添加剂的第一个例子,它含有苯并噻唑和氨基噻唑,并具有多种锚固中心,可抑制硫酸介质中的X65腐蚀。电化学实验表明BTAE能有效控制X65钢的阳极反应,属于阳极型缓蚀剂。在一定温度范围内,BTAE的缓蚀效率仍可保持在97%以上。表面形貌分析和电化学测试结果高度一致。BTAE在X65钢界面上的吸附符合Langmuir模型。量子化学和分子动力学模拟结果证明BTAE是一种优良的缓蚀剂。