Rule of Lignosulfonate as a corrosion inhibitor for steel in neutral media, computational and reaction pathway
Year: 2024
Type: article
Abstract: This study aimed to look at how lignin sulfonate (LS) inhibited corrosion of mild steel (MS) in a 1.0M NaCl solution. In this study, gravimetric and electrochemical techniques were used to acquire a thorough grasp of the inhibitory effects of LS on MS corrosion. In addition, the current work used computational approaches to investigate This connection that exists between the inhibitor compounds' functional features and their adsorption capabilities on the MS surface. Weight loss, Potentiodynamic polarization (PDP), and open-circuit studies demonstrated moderate anticorrosion properties of the investigated chemicals. LS had the best inhibition performance, reaching 51.6%. The polarization approach (PDP) revealed that the intended substances were mixed-type inhibitors, which prevented concurrent processes involving anodes and cathodes. In addition, the interaction pattern between the LS and MS surfaces matched, with physical interactions aiding the adsorption mechanisms of both chemicals. Furthermore, the stability of LS under several operating conditions temperature influence and submerge duration on inhibitory effectiveness were investigated. Additionally, the data gathered via theoretical approaches to the Langmuir adsorption model using Molecular Dynamics (MD) and Density Functional Theory (DFT) investigations agrees with those obtained through experimental methods, confirming the anticorrosion activity of the LS under investigation
Institutions: Jazan University, Al-Azhar University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,000
OpenAlex ID: W4401415735