Convolvulus microphyllus Extract as a Green, Effective, and Affordable Corrosion Inhibitor: Theoretical Calculations and Experimental Studies
Source abstract
Abstract
This study demonstrates the ability of Convolvulus microphyllus extract to prevent low-carbon steel corrosion (LCS) by varying inhibitor concentration. The effectiveness of the corrosion reaction was examined using gravimetric techniques and electrochemical procedures in a corrosive 0.5 M sulfuric acid medium. The results of polarization show a mixed adsorption nature on the LCS surface. C. microphyllus-derived film (extract) had an inhibition efficiency (IE) of 92.47% at an inhibitor concentration of 600 mg/L and a temperature 298 K. To examine the morphology, a scanning electron microscope (SEM) and atomic force microscope (AFM) were used to analyze the external films that protect LCS from sulfuric acid. A thin protective coat of inhibitor outside the LCS substrate follows the Langmuir adsorption isotherm. Additionally, computational exploration provided vital insights. The results of these experimental inhibitory outcomes are consistent with those of molecular dynamic simulations.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Concrete Corrosion and Durability · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Centre for Materials Science, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South Africa
Department of Chemistry, Faculty of Natural and Mathematics Science, University of Prishtina, 10020 Prishtina, Kosovo
Funding
NRF (National Research Foundation) of Korea · Ministry of SMEs and Startups (MSS, Korea)
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