Corrosion inhibition performance of an environmentally friendly water-based nano-inhibitor

Metal corrosion not only causes huge economic losses, but sometimes even endangers personal safety. Therefore, the requirements for the corrosion resistance of metals are becoming a significant problem. The use of inhibitor is still one of the most common and effective methods to prevent metal corrosion. An environmentally friendly water-based nano-inhibitor containing nano TiO2 was prepared in this work. The open-circuit potential-time curve revealed that the volt-age stability value of the steel coated with the proposed inhibitor is-0.51 V, which is higher than-0.54 V of the blank steel plate and commercial inhibitor (-0.52 V), indicating that the proposed nano-inhibitor can improve the stability of the entire system. According to the Tafel polarization curve, the inhibitor coating can significantly increase the corrosion potential, and at the same time reduces the corrosion current density. The EIS plots show that the proposed inhibitor can increase the charge transfer resistance.(c) 2023 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

Automated summary

Metal corrosion causes significant economic losses and poses personal safety risks. Inhibitor usage is a common and effective method to prevent corrosion. A water-based nano-inhibitor containing nano TiO2 was prepared in this study. Experimental results show that the proposed inhibitor improves the stability, corrosion potential, and charge transfer resistance of the steel system.