2-Benzylsulfanyl-1H-benzimidazole(2B1BI) was synthesized and used to inhibit the corrosion of carbon steel in supercritical CO brine at various rotation speeds. Thiourea (TU) can improve the inhibition of 2B1BI. The corrosion inhibition mechanism and adsorption process were investigated by electrochemical techniques and theoretical calculations. The results show that 2B1BI-TU mixed corrosion inhibitors exhibit increased adsorption with strong bonds on steel, forming a denser and more persistent protective film. This film can effectively inhibit corrosive particles, slowing down both general and localized corrosion. This study explores the potential of the new inhibitor as an efficient corrosion inhibitor in challenging environmental conditions.

中文翻译：

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动态超临界CO2流动条件下2-苄基硫基-1H-苯并咪唑及其混合物作为碳钢高效缓蚀剂


合成了2-苄基硫基-1H-苯并咪唑(2B1BI)，并用于在不同转速下抑制碳钢在超临界CO盐水中的腐蚀。硫脲(TU)可提高2B1BI的抑制作用。通过电化学技术和理论计算研究了缓蚀机理和吸附过程。结果表明，2B1BI-TU混合缓蚀剂在钢材上表现出更强的吸附力，形成更致密、更持久的保护膜。该膜能有效抑制腐蚀颗粒，减缓全面腐蚀和局部腐蚀。这项研究探讨了新型抑制剂在具有挑战性的环境条件下作为有效腐蚀抑制剂的潜力。