An Overview on the Performance of 1,2,3-Triazole Derivatives as Corrosion Inhibitors for Metal Surfaces

This review accounts for the most recent and significant research results from the literature on the design and synthesis of 1,2,3-triazole compounds and their usefulness as molecular well-defined corrosion inhibitors for steels, copper, iron, aluminum, and their alloys in several aggressive media. Of particular interest are the 1,4-disubstituted 1,2,3-triazole derivatives prepared in a regioselective manner under copper-catalyzed azide-alkyne cycloaddition (CuAAC) click reactions. They are easily and straightforwardly prepared compounds, non-toxic, environmentally friendly, and stable products to the hydrolysis under acidic conditions. Moreover, they have shown a good efficiency as corrosion inhibitors for metals and their alloys in different acidic media. The inhibition efficiencies (IEs) are evaluated from electrochemical impedance spectroscopy (EIS) parameters with different concentrations and environmental conditions. Mechanistic aspects of the 1,2,3-triazoles mediated corrosion inhibition in metals and metal alloy materials are also overviewed.

Automated summary

This review summarizes the recent and significant research on the design and synthesis of 1,2,3-triazole compounds as molecularly-defined corrosion inhibitors for steels, copper, iron, aluminum, and their alloys. The focus is on the regioselective preparation of 1,4-disubstituted 1,2,3-triazole derivatives using copper-catalyzed azide-alkyne cycloaddition reactions. These compounds are easily prepared, non-toxic, environmentally friendly, and stable under acidic conditions. They have shown high efficiency as corrosion inhibitors for metals and alloys in various acidic media. The review also provides an overview of the mechanism of 1,2,3-triazole-mediated corrosion inhibition in metals and metal alloys.