期刊
COORDINATION CHEMISTRY REVIEWS
卷 488, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ccr.2023.215177
关键词
Nitrogenous heterocyclics; Azoles & triazines; Coordination bonding; Chelation ability; Multidentate ligands; Corrosion inhibition
Heterocyclic compounds containing nitrogen atoms have excellent corrosion inhibition potential and are frequently used to prevent corrosion in extreme circumstances. These compounds can effectively adsorb on the metal's surface and form chelating complexes to protect metallic species from corrosive environments. Azoles and triazines, as well as other N-heterocyclic compounds with multiple nitrogen atoms, are particularly efficient in reducing corrosive effects in aqueous electrolytes. This review discusses the coordination and bonding characteristics of N-based heterocyclic compounds and their ability to prevent corrosion.
Heterocyclic compounds including the atoms N, O, S, and P have excellent corrosion inhibition potential due to their ability to coordinate and bond with metallic substrates. For preventing corrosion in a variety of extreme circumstances, such as acid pickling, oil-well acidification, and sour, sour, and scaling environments, nitrogenous heterocyclic compounds have been utilized most frequently. The N-based heterocyclic compounds effectively adsorb on the metal's surface using the nitrogen's nonbonding electron and other adsorption sites. These compounds act as powerful ligands. When their derivatives are appropriately substituted, they combine with the metal and metallic ions to form chelating complexes that keep metallic species away from corrosive environments and so prevent corrosion. The review of the literature indicates that azoles and triazines, as well as other N-heterocyclic compounds having one, two, three, or more nitrogen atoms, are particularly efficient in reducing corrosive effects in aqueous electrolytes. The goal of this review is to talk about the coordination and bonding characteristics of N-based heterocyclic compounds and how they can prevent corrosion. The formation of chelates by N-based heterocyclic compounds and their ability to prevent corrosion has also been covered.
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