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Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine

Thiosemicarbazone-linked 3-acetylpyridine (T3AP), was synthesized and tested on copper strips in hydrochloric acid. Gravimetric measurements and electrochemical impedance spectroscopy were used to investigate the optimized inhibitory behavior of T3AP using the response surface methodology (RSM), wit...

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Main Authors: Mohamad Alwi, Muhammad Ammar, Ahmad, Mohammad Norazmi, Misnon, Izan Izwan, Pauzi, Hariy, Abdullah, Erna Normaya
Format: Article
Language:English
Published: Royal Society of Chemistry 2022
Subjects:
QD Chemistry
Online Access:http://irep.iium.edu.my/100357/2/100357_Gravimetric%20and%20electrochemical%20statistical%20optimizations.pdf
http://irep.iium.edu.my/100357/
https://pubs.rsc.org/en/content/articlepdf/2022/ra/d2ra05192c
https://doi.org/10.1039/D2RA05192C
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spelling my.iium.irep.1003572022-09-30T03:15:30Z http://irep.iium.edu.my/100357/ Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine Mohamad Alwi, Muhammad Ammar Ahmad, Mohammad Norazmi Misnon, Izan Izwan Pauzi, Hariy Abdullah, Erna Normaya QD Chemistry Thiosemicarbazone-linked 3-acetylpyridine (T3AP), was synthesized and tested on copper strips in hydrochloric acid. Gravimetric measurements and electrochemical impedance spectroscopy were used to investigate the optimized inhibitory behavior of T3AP using the response surface methodology (RSM), with the optimized result obtained using a temperature of 42.90 0C, acid concentration of 2.38 M, inhibitor concentration of 3.80 mM, and time of 18.97 h, with inhibition efficiency up to approximately 93%. Validation of the experimental and predicted RSM showed that no significant difference in the inhibition efficiency with the confidence level value up to 97% was obtained. The isotherm study shows that T3AP obeys the Langmuir isotherm adsorption model, with physisorption and chemisorption adsorption mechanisms. The effectiveness of inhibitor performance of T3AP can be visually observed using scanning electron microscopy and X-ray photoelectron spectroscopy. The characterization revealed that the reactive S and N atoms in the T3AP inhibitor form strong chemical adsorption through N–Cu and Cu–S bonds on the copper surface. Computational analysis was also carried out, and we found that the stable energy gap between the occupied and unoccupied molecular orbitals (4.6891 eV) and high binding energy (540.962 kJ mol−1) adsorption from molecular dynamics were in agreement with the experimental findings. Royal Society of Chemistry 2022-09-20 Article PeerReviewed application/pdf en http://irep.iium.edu.my/100357/2/100357_Gravimetric%20and%20electrochemical%20statistical%20optimizations.pdf Mohamad Alwi, Muhammad Ammar and Ahmad, Mohammad Norazmi and Misnon, Izan Izwan and Pauzi, Hariy and Abdullah, Erna Normaya (2022) Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine. RSC Advances, 12. pp. 27793-27808. ISSN 2046-2069 https://pubs.rsc.org/en/content/articlepdf/2022/ra/d2ra05192c https://doi.org/10.1039/D2RA05192C
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Mohamad Alwi, Muhammad Ammar
Ahmad, Mohammad Norazmi
Misnon, Izan Izwan
Pauzi, Hariy
Abdullah, Erna Normaya
Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
description Thiosemicarbazone-linked 3-acetylpyridine (T3AP), was synthesized and tested on copper strips in hydrochloric acid. Gravimetric measurements and electrochemical impedance spectroscopy were used to investigate the optimized inhibitory behavior of T3AP using the response surface methodology (RSM), with the optimized result obtained using a temperature of 42.90 0C, acid concentration of 2.38 M, inhibitor concentration of 3.80 mM, and time of 18.97 h, with inhibition efficiency up to approximately 93%. Validation of the experimental and predicted RSM showed that no significant difference in the inhibition efficiency with the confidence level value up to 97% was obtained. The isotherm study shows that T3AP obeys the Langmuir isotherm adsorption model, with physisorption and chemisorption adsorption mechanisms. The effectiveness of inhibitor performance of T3AP can be visually observed using scanning electron microscopy and X-ray photoelectron spectroscopy. The characterization revealed that the reactive S and N atoms in the T3AP inhibitor form strong chemical adsorption through N–Cu and Cu–S bonds on the copper surface. Computational analysis was also carried out, and we found that the stable energy gap between the occupied and unoccupied molecular orbitals (4.6891 eV) and high binding energy (540.962 kJ mol−1) adsorption from molecular dynamics were in agreement with the experimental findings.
format Article
author Mohamad Alwi, Muhammad Ammar
Ahmad, Mohammad Norazmi
Misnon, Izan Izwan
Pauzi, Hariy
Abdullah, Erna Normaya
author_facet Mohamad Alwi, Muhammad Ammar
Ahmad, Mohammad Norazmi
Misnon, Izan Izwan
Pauzi, Hariy
Abdullah, Erna Normaya
author_sort Mohamad Alwi, Muhammad Ammar
title Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
title_short Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
title_full Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
title_fullStr Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
title_full_unstemmed Gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
title_sort gravimetric and electrochemical statistical optimizations for improving copper corrosion resistance in hydrochloric acid using thiosemicarbazone-linked 3-acetylpyridine
publisher Royal Society of Chemistry
publishDate 2022
url http://irep.iium.edu.my/100357/2/100357_Gravimetric%20and%20electrochemical%20statistical%20optimizations.pdf
http://irep.iium.edu.my/100357/
https://pubs.rsc.org/en/content/articlepdf/2022/ra/d2ra05192c
https://doi.org/10.1039/D2RA05192C
_version_ 1745562171930050560
score 13.211869

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