Triazine-based corrosion inhibitors: synthesis, significance, and emerging perspectives

Abstract

Triazine is a nitrogen-containing heterocyclic moiety that represents a significant building block, which is prevalent in a diverse array of pharmaceutical agents and natural substances. Numerous triazine derivatives have been identified as effective corrosion inhibitors, attributed to the configuration of three nitrogen atoms that are symmetrically positioned within a six-membered ring structure. Moreover, the lone pair electrons on the nitrogen atoms, along with the influence of ring substituents, markedly enhance the adsorption of triazine-based compounds onto metallic surfaces, thereby contributing to their efficiency as corrosion inhibitors. This review offers a comprehensive outline on the synthetic methodologies and various applications related to triazines, accompanied by a critical literature review focusing on the corrosion inhibition efficacy of triazine derivatives. Additionally, investigations insights regarding the adsorption of triazines onto metallic surfaces, derived from both experimental and computational investigations, are delineated in this article. Furthermore, the challenges and future perspectives are explored to provide valuable benefit for researchers in this field.