Amino Acids and Their Derivatives as Green Corrosion Inhibitors

Abstract

Amino acids are biomolecules that carry out a myriad of functions inside the human body, besides forming the backbone of proteins. The amino acids are characterized by the presence of –NH2 and –COOH groups that allow high solubility in aqueous environments. A number of studies are available in the literature on the application of amino acids as green corrosion inhibitors for various metals and alloys. This chapter presents a brief account of the significance of amino acids as environmentally sustainable corrosion inhibitors. A survey of the literature on the application of amino acids as corrosion inhibitors with mechanistic insights is provided. Some of the chemically functionalized amino acids and polymeric amino acids are also described for their application in corrosion inhibition.