AI Article Synopsis
- The use of eco-friendly corrosion inhibitors is important for environmental protection and sustainable industrial practices.
- Two new thiourea-based inhibitors, GA-1 and GA-2, were developed to prevent corrosion of mild steel in hydrochloric acid.
- GA-2 showed particularly impressive results, achieving a 97.7% inhibition efficiency at a concentration of 0.64 mM, with theoretical calculations used to explain how these inhibitors work on the metal surface.
Article Abstract
In the view of environmental protection and sustainable development, the application of green effective inhibitors for metal corrosion in industry field is of great significance. In this work, two thiourea functionalized glucosamine derivatives, 5-hydroxy-1-phenyl-4-(1,2,3,4-tetrahydroxybutyl)imidazolidine-2-thione (GA-1) and 1-phenyl-3-(2,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)thiourea (GA-2), were synthesized as eco-friendly corrosion inhibitors for mild steel (MS) in 1 M HCl solution, and their inhibition performance were evaluated by electrochemical tests and surface analyses. The electrochemical tests and surface analyses indicate that both GA-1 and GA-2 have high inhibition performance. Especially for GA-2, the inhibition efficiency reaches 97.7% with a concentration of 0.64 mM. Theoretical calculations were also conducted to elucidate the adsorption mechanism of GA-1 and GA-2 on MS surface.
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| http://dx.doi.org/10.1016/j.jcis.2020.11.073 | DOI Listing |
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