Work

Ultrasound-Assisted Synthesis of 2-Benzylidene-1-Indanone Derivatives and Evaluation as a Corrosion Inhibitor for Mild Steel in 1 M HCl Solution

Year: 2025

Type: article

Abstract: This study explores the ultrasound-assisted synthesis of three 2-benzylidene-1-indanone derivatives and assesses their effectiveness as corrosion inhibitors for mild steel AISI 1018 in 1 M HCl through electrochemical techniques and density functional theory (DFT) quantum chemical calculations. The results indicate that the inhibitors studied; specifically IND-1, (Z)-2-(hydroxy-(phenyl)-methylene)-2,3-dihydro-1H-inden-1-one; IND-2, (Z)-2-(hydroxy-(pyridine-3-yl)-methylene)-2,3-dihydro-1H-inden-1-one and IND-3, (Z)-2-((4-(dimethylamino)-phenyl)-(hydroxy)-methylene)-2,3-dihydro-1H-inden-1-one, modified the cathodic reaction mechanism. These inhibitors achieve efficiencies greater than 98%, and their inhibitory effect does not increase with higher concentrations. A comparison of computational predictions and experimental analyses indicates that the pyridine ring and the diethylamino group reduce the inhibitory capacity of carbon steel in acidic environments.

Source: ACS Omega

DOI: 10.1021/acsomega.4c09705

Authors: Ricardo Ballinas-Indili, Paola Roncagliolo-Barrera, Roberto Salcedo, Francisco J. Rodríguez-Gómez, Cecilio Álvarez-Toledano

Institutions: Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,935

Funders: Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México, Sistema Nacional de Investigadores