Kumar Pankaj, Holmberg Krister, Soni Isha, Islam Nasarul, Kumar Manish, Shandilya Pooja, Sillanpää Mika, Chauhan Vinay
School of Advanced Chemical Sciences, Shoolini University, Solan 173229, India.
Applied Surface Chemistry, Chalmers University of Technology, Gothenburg 41296, Sweden.
Adv Colloid Interface Sci. 2024 Nov;333:103303. doi: 10.1016/j.cis.2024.103303. Epub 2024 Sep 17.
The global corrosion cost is estimated to be around 2.5 trillion USD, which is more than 3 % of the global GDP. Against this background, large efforts have been made to find effective corrosion inhibitors. Ionic liquids (ILs) are nowadays regarded as reliable functional materials and one of the most promising classes of anticorrosion agents. Not only are they efficient in preventing corrosion of iron and other metals, but they are also relatively inexpensive, need no solvents, and are non-toxic to humans This review addresses both experimental and theoretical investigations conducted to IL-based corrosion inhibitors (CIs). It covers various ILs used, synthesis methods, and their performance in diverse corrosive environments. Electrochemical techniques like EIS and potentiodynamic polarization, along with computational approaches including quantum chemical calculations and DFT, provide valuable insights into corrosion inhibition mechanisms and the interactions between anticorrosion agents-surfaces. The synergistic combination of experimental and theoretical approaches enhances our understanding of corrosion inhibition, enabling the design and optimization of effective and sustainable corrosion protection strategies. This review consolidates the existing knowledge on ionic liquid-based corrosion inhibitors, highlights the key findings from both experimental and theoretical investigations, and points out possible directions for further studies in this area.
全球腐蚀成本估计约为2.5万亿美元，超过全球国内生产总值的3%。在此背景下，人们为寻找有效的缓蚀剂付出了巨大努力。离子液体（ILs）如今被视为可靠的功能材料，也是最有前途的一类缓蚀剂。它们不仅能有效防止铁和其他金属的腐蚀，而且相对便宜，无需溶剂，对人体无毒。本综述涉及对基于离子液体的缓蚀剂（CIs）进行的实验和理论研究。它涵盖了所使用的各种离子液体、合成方法及其在不同腐蚀环境中的性能。电化学技术如电化学阻抗谱（EIS）和动电位极化，以及包括量子化学计算和密度泛函理论（DFT）在内的计算方法，为腐蚀抑制机制以及缓蚀剂与表面之间的相互作用提供了有价值的见解。实验和理论方法的协同结合增强了我们对腐蚀抑制的理解，有助于设计和优化有效且可持续的腐蚀防护策略。本综述整合了关于基于离子液体的缓蚀剂的现有知识，突出了实验和理论研究的关键发现，并指出了该领域进一步研究的可能方向。
