Green and eco-benign corrosion inhibition agents: Alternatives and options to chemical based toxic corrosion inhibitors

Vincent Onuegbu Izionworu, Chukwuemeka Peter Ukpaka and Emeke Emmanuel Oguzie

Abstract

The control of corrosion of metal and its alloy dissolution in environments that induce corrosion has been reviewed showing successes recorded in the search for alternative inhibitors that would replace toxic and expensive inhibitors that in some instances require rigorous process of synthesis. Studies show that organic compounds, drugs, polymers and extracts from plant have been used. It also shows that in an effort to improve the efficiency of the developed inhibitors quite a number of them have been synergized with halide ions and surfactants. The mode of adsorption mechanism for majority of the tested inhibitor alternatives is also highlighted.