Corrosion Inhibition Property of Amoxicillin Drug for Al-2014 Alloy in 1M HCl Solution

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Amoxicillin effectively inhibits the corrosion of Al-2014 alloy in 1M HCl by adsorbing onto the surface, as evidenced by surface analysis, potentiodynamic, EIS, and adsorption isotherm studies.

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This preprint studied the corrosion behavior of Al-2014 alloy in 1M HCl and tested whether the drug amoxicillin could inhibit corrosion at different concentrations and temperatures, using FE-SEM imaging and electrochemical methods including potentiodynamic polarization and EIS. FE-SEM indicated that amoxicillin-treated surfaces showed less corrosion than untreated alloy, while potentiodynamic measurements identified 150 ppm as the concentration with the highest corrosion inhibition across temperatures; EIS showed higher charge-transfer resistance (Rct) for inhibitor-treated samples, supported by Nyquist-plot analysis and adsorption-isotherm parameters, including reported high adsorption equilibrium constants and negative standard free energy changes. The paper explicitly notes a major limitation that full-text HTML conversion was not completed due to technical issues, with the content available as a PDF rather than fully processed HTML. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Abstract

Abstract We focus on the corrosion behavior of Al-2014 alloy in the 1M HCl acidic medium. Also, the inhibition property of Amoxicillin on Al-2014 alloy was studied with different concentrations at different temperatures. The micrographs with and without inhibitor are examined with FE-SEM. It reveals that the Amoxicillin-treated surface has prevented corrosion compared to the untreated Al-2014 alloy. The potentiodynamic measurements reveal that Al-2014 alloy with 150ppm of inhibitor solution has the highest tendency to prevent corrosion in 1M HCl solution in all the samples at different temperatures. It is also verified from the adsorption isotherm, the high inhibition rate is due to the value of ′𝐾𝑎𝑑𝑠′ (6592.3kJ/mol.(25°C), 4524.09kJ/mol.(35°C)) and ΔG0(25°𝐶, 35°𝐶) ≈ −33.8, −33.9𝑘𝐽/𝑚𝑜𝑙.. From the EIS studies, the inhibition samples show a higher ‘Rct’ value implies good corrosion resistance. It is also confirmed from the equivalent circuit by Nyquist plots.
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Corrosion Inhibition Property of Amoxicillin Drug for Al-2014 Alloy in 1M HCl Solution | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Corrosion Inhibition Property of Amoxicillin Drug for Al-2014 Alloy in 1M HCl Solution Nataraja G, Praveen B M, Santhosh Kumar M V, Pruthviraj R D This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-445562/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract We focus on the corrosion behavior of Al-2014 alloy in the 1M HCl acidic medium. Also, the inhibition property of Amoxicillin on Al-2014 alloy was studied with different concentrations at different temperatures. The micrographs with and without inhibitor are examined with FE-SEM. It reveals that the Amoxicillin-treated surface has prevented corrosion compared to the untreated Al-2014 alloy. The potentiodynamic measurements reveal that Al-2014 alloy with 150ppm of inhibitor solution has the highest tendency to prevent corrosion in 1M HCl solution in all the samples at different temperatures. It is also verified from the adsorption isotherm, the high inhibition rate is due to the value of ′𝐾 𝑎𝑑𝑠 ′ (6592.3kJ/mol.(25°C), 4524.09kJ/mol.(35°C)) and ΔG 0 (25°𝐶, 35°𝐶) ≈ −33.8, −33.9𝑘𝐽/𝑚𝑜𝑙.. From the EIS studies, the inhibition samples show a higher ‘R ct ’ value implies good corrosion resistance. It is also confirmed from the equivalent circuit by Nyquist plots. Materials Chemistry Al 2014 alloy Amoxicillin FE-SEM EDAX Weight loss Tafel polarization EIS Potentiodynamic Polarization EIS Analysis Nyquist plots Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Full Text Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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