Effect of 3-Nitroacetophenone on Corrosion Inhibition of Mild Steel in Acidic Medium. (16th February 2022)

• Record Type: Journal Article
• Authors: Ibrahim, Sani; Sanmugapriya, R.; Selvi, J. Arockia; Malini, T. Pushpa; Kamaraj, P.; Vivekanand, P. A.; Periyasami, Govindasami; Aldalbahi, Ali; Perumal, Karthikeyan; Madhavan, J.; Khanal, Santosh
• Other Names: Govindan Bharath Academic Editor.
• Is Part Of: International journal of photoenergy. Volume 2022(2022)
• Publication Date: 2022-02-16
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Photochimie; Photobiologie; Chimie physique et théorique; Chemistry, Physical and theoretical; Photobiology; Photochemistry; Electronic journals; Periodicals; 541.35
• DOI: 10.1155/2022/7276670
• Languages: English
• ISSNs: 1110-662X

Abstract

Abstract : Acetophenone derivatives are eco-friendly corrosion inhibitors to prevent corrosion of mild steel (MS) in acidic medium. In this work, the inhibition effect of 3-nitroacetophenone (3-NA) on the corrosion of MS in acidic medium (1 N HCl) was investigated using weight loss measurements, electrochemical measurements, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and quantum chemistry analysis. The studies were performed using different concentrations of inhibitors and at different temperatures. The results indicated that the inhibition efficiency of 3-NA increases with an increase in inhibitor concentration and reaches to a maximum of 64% at inhibitor concentration of 250 ppm at 30°C. The potentiodynamic polarization measurement indicated that 3-NA acts as mixed category of interdict. The adsorption of 3-NA on MS surface followed the Langmuir adsorption isotherm. The mode of adsorption of 3-NA on MS surface was further studied by quantum chemical calculations based on density functional theory (DFT). The results plainly revealed that 3-NA performs fairly as corrosion interdict for MS in acidic medium.