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Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media

[Image: see text] Heterocyclic Mannich bases, N-(3-oxo-3-phenylpro-pyl)thiazol-2-aminium chloride (DTZA) and N-(3-oxo-3-phenylpropyl)-1H-pyrazol-3-aminium chloride (DPZA), were developed for the corrosion inhibition of N80 steel in a 15 wt % lactic acid solution. Weight loss measurements, electroche...

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Autores principales: Zhang, Xiaoyun, Zhang, Yinhang, Su, Yuxin, Wang, Xiaoyang, Lv, Renqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9476531/
https://www.ncbi.nlm.nih.gov/pubmed/36120014
http://dx.doi.org/10.1021/acsomega.2c03545
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author Zhang, Xiaoyun
Zhang, Yinhang
Su, Yuxin
Wang, Xiaoyang
Lv, Renqing
author_facet Zhang, Xiaoyun
Zhang, Yinhang
Su, Yuxin
Wang, Xiaoyang
Lv, Renqing
author_sort Zhang, Xiaoyun
collection PubMed
description [Image: see text] Heterocyclic Mannich bases, N-(3-oxo-3-phenylpro-pyl)thiazol-2-aminium chloride (DTZA) and N-(3-oxo-3-phenylpropyl)-1H-pyrazol-3-aminium chloride (DPZA), were developed for the corrosion inhibition of N80 steel in a 15 wt % lactic acid solution. Weight loss measurements, electrochemical techniques, surface characterization, and theoretical calculations were combined to investigate their anticorrosion performance and mechanism. The results showed that DTZA exhibited a satisfactory inhibitor efficiency of 97.56% with a dosage of 0.15% at 363 K, while DPZA achieved only 58.3% under the same conditions. Adsorptions of both inhibitors on the metal surface followed the Langmuir model with physical and chemical adsorptions. Based on X-ray photoelectronic spectroscopy (XPS) analysis, DFT calculations, and molecular dynamics (MD) simulations, stronger interactions between DTZA and iron than those in the case of DPZA were revealed, leading to the formation of a compact protective film on the metal surface, which is attributed to the presence of a thiazole ring in the DTZA chemical structure.
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spelling pubmed-94765312022-09-16 Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media Zhang, Xiaoyun Zhang, Yinhang Su, Yuxin Wang, Xiaoyang Lv, Renqing ACS Omega [Image: see text] Heterocyclic Mannich bases, N-(3-oxo-3-phenylpro-pyl)thiazol-2-aminium chloride (DTZA) and N-(3-oxo-3-phenylpropyl)-1H-pyrazol-3-aminium chloride (DPZA), were developed for the corrosion inhibition of N80 steel in a 15 wt % lactic acid solution. Weight loss measurements, electrochemical techniques, surface characterization, and theoretical calculations were combined to investigate their anticorrosion performance and mechanism. The results showed that DTZA exhibited a satisfactory inhibitor efficiency of 97.56% with a dosage of 0.15% at 363 K, while DPZA achieved only 58.3% under the same conditions. Adsorptions of both inhibitors on the metal surface followed the Langmuir model with physical and chemical adsorptions. Based on X-ray photoelectronic spectroscopy (XPS) analysis, DFT calculations, and molecular dynamics (MD) simulations, stronger interactions between DTZA and iron than those in the case of DPZA were revealed, leading to the formation of a compact protective film on the metal surface, which is attributed to the presence of a thiazole ring in the DTZA chemical structure. American Chemical Society 2022-09-01 /pmc/articles/PMC9476531/ /pubmed/36120014 http://dx.doi.org/10.1021/acsomega.2c03545 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Zhang, Xiaoyun
Zhang, Yinhang
Su, Yuxin
Wang, Xiaoyang
Lv, Renqing
Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media
title Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media
title_full Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media
title_fullStr Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media
title_full_unstemmed Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media
title_short Synthesis and Corrosion Inhibition Performance of Mannich Bases on Mild Steel in Lactic Acid Media
title_sort synthesis and corrosion inhibition performance of mannich bases on mild steel in lactic acid media
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9476531/
https://www.ncbi.nlm.nih.gov/pubmed/36120014
http://dx.doi.org/10.1021/acsomega.2c03545
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