基化物离子液作为一种绿色腐蚀抑制剂,用于在酸性介质中的温钢
Fang Luo1, Pei Yao2, Jiale Zhang1
1School of Petroleum Engineering, Changzhou University Wujin District Changzhou 213164 Jiangsu PR China let@cczu.edu.cn.
RSC advances
|August 4, 2025
概括
胺胺离子液体有效地抑制了低碳钢在HCl中的腐蚀. 1-二甲基-3-甲基化物 ([C12Py]Br) 显示出最高的抑制率,通过混合化学和物理吸附形成保护膜.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 腐蚀科学 腐蚀科学
背景情况:
- 低碳钢容易腐蚀,特别是在酸性环境中.
- 离子液体具有作为环保腐蚀抑制剂的潜力.
- 了解吸附机制对于开发有效的抑制剂至关重要.
研究的目的:
- 为了评估皮里丁化物离子液体在低碳钢上的腐蚀抑制性能.
- 为了确定最佳条件和基链长度对抑制的影响.
- 用实验和计算方法阐明腐蚀抑制机制.
主要方法:
- 电化学测量 (潜在动力学极化,EIS).
- 表面分析技术 (SEM/EDS,XPS) 进行分析.
- 量子化学的计算. 量子化学的计算.
- 分子动力学模拟.分子动力学模拟.
主要成果:
- 在最佳条件下 (1-dodecyl-3-methylpyridine化物 ([C12Py]Br) 在最佳条件下 (25°C,1M HCl) 达到94.1%的最大抑制效率.
- 腐蚀抑制是由于钢表面形成了一层保护膜.
- 吸附机制是一种混合型,以化学吸附为主.
- 分子动力学模拟证实了关于吸附行为和相互作用的实验发现.
结论:
- 皮里丁化物离子液体,特别是[C12Py]Br,是HCl中低碳钢的高效腐蚀抑制剂.
- [C12Py]Br通过强化学吸附形成了一个稳定的保护层.
- 这项研究提供了有关离子液体抑制剂及其吸附机制的结构-性质关系的宝贵见解.
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