Ionic Liquids as Green Corrosion Inhibitors for Industrial Metals and Alloys

Abstract

Present chapter describes recent advances in the field of development of ionic liquids as green and sustainable corrosion inhibitors for metals and alloys. The present chapter has been divided into several sections and subsections. Recently, development of the green and sustainable technologies for the corrosion prevention is highly desirable due to increasing ecological awareness and strict environmental regulations. In the last two decades, corrosion inhibition using ionic liquids has attracted considerable attention due to its interesting properties such as low volatility, non-inflammability, non-toxic nature, high thermal and chemical stability and high adorability. Several types of ionic liquids have been developed as "green corrosion inhibitors" for different metals and alloys such as mild steel, aluminum, copper, zinc, and magnesium in several electrolytic media. The ionic liquids are promising, noble, green and sustainable candidates to replace the traditional volatile corrosion inhibitors.

Inhibition Effect of Bombax ceiba Flower Extract as Green Corrosion Inhibitor of Mild Steel in 0.5 M H2SO4 Medium

“…The corrosion inhibition efficiency of Bombax ceiba flower extracts was calculated using the following eqn. [26]:…”

“…Various organic inhibitors have been synthesized and used to inhibit metal corrosion in acidic solutions. Some of these organic inhibitors are expensive, toxic, hazardous and harmful for human beings and environment as well [5][6][7]. The toxicity of organic inhibitors may manifest either during the synthesis of the organic molecules or when it used.…”

An exploration on the synthesis and bio-applications of derivatives of heterocyclic Mannich bases

“…Both the ligand and its metal complexes were tested against some microorganisms for their antimicrobial activity. been investigated using weight loss and electrochemical methods by Verma et al, [79].These compounds showed maximum efficiency of 92% and 95% at 25ppm concentration respectively. Potentiodynamic polarization suggested that the inhibitors depict mixed type behaviour.…”

Ionic Liquid Modified Single‐use Electrode Developed for Voltammetric Detection of miRNA‐34a and its Application to Real Samples

“…The ILs have several effective properties, including low volatility, very high stability, capability to dissolve a wide range of inorganic and organic compounds, capability to solubilize gases like CO 2 , H 2 , CO etc., dependency of solubility on the nature of anions and cations . ILs have also been used in different fields such as batteries and capacitors, fuel cells, photovoltaics, extractions and separations , optical sensors and electrochemical sensors . The utilization of ILs as modifiers to surfaces of electrochemical sensor increases the sensitivity, stability and selectivity of the reduction and/or oxidation of chemical compounds .…”