Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies

Mild steel is often used as a construction material in the industry because of its relatively low price. However, due to its low corrosion resistance, some form of a protective film should be applied to prevent it from rusting in the corrosive environment. Thiosemicarbazone is one of the Schiff base...

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Published in:Chemical Papers
Main Author: Razali N.Z.K.; Sheikh Mohd Ghazali S.A.I.; Sharif I.; Sapari S.; Abdul Razak F.I.; Dzulkifli N.N.
Format: Article
Language:English
Published: Springer Science and Business Media Deutschland GmbH 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85131880245&doi=10.1007%2fs11696-022-02297-8&partnerID=40&md5=4acc8dbc663fc9671e44638eafdcb1ca
id 2-s2.0-85131880245
spelling 2-s2.0-85131880245
Razali N.Z.K.; Sheikh Mohd Ghazali S.A.I.; Sharif I.; Sapari S.; Abdul Razak F.I.; Dzulkifli N.N.
Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
2022
Chemical Papers
76
9
10.1007/s11696-022-02297-8
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85131880245&doi=10.1007%2fs11696-022-02297-8&partnerID=40&md5=4acc8dbc663fc9671e44638eafdcb1ca
Mild steel is often used as a construction material in the industry because of its relatively low price. However, due to its low corrosion resistance, some form of a protective film should be applied to prevent it from rusting in the corrosive environment. Thiosemicarbazone is one of the Schiff base ligands that can inhibit corrosion due to the presence of electronegative atoms such as N, S, and π electrons that can cause an efficient adsorption on the mild steel surface. This research aims to synthesise of 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone (2ClAcTSC) and the structure was confirmed using an elemental analyser, UV–Vis, NMR and ATR-FTIR. The inhibitive effects of 2ClAcTSC were studied on mild steel in 1 M HCl and H2SO4 by using the weight loss method and Scanning Electron Microscopy (SEM). It was found that the 2ClAcTSC has better effectiveness in HCl rather than H2SO4 solution. Moreover, the inhibition efficiency increases as the inhibitor concentration increases. The SEM results verified that the inhibitor had been adsorbed on the mild steel surface to form a protective layer. Density Functional Theory (DFT) computations are performed to correlate inhibitor efficiency with intrinsic molecular parameters. The study revealed that the results obtained are consistent with the experimental data reported. © 2022, Institute of Chemistry, Slovak Academy of Sciences.
Springer Science and Business Media Deutschland GmbH
3666352
English
Article

author Razali N.Z.K.; Sheikh Mohd Ghazali S.A.I.; Sharif I.; Sapari S.; Abdul Razak F.I.; Dzulkifli N.N.
spellingShingle Razali N.Z.K.; Sheikh Mohd Ghazali S.A.I.; Sharif I.; Sapari S.; Abdul Razak F.I.; Dzulkifli N.N.
Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
author_facet Razali N.Z.K.; Sheikh Mohd Ghazali S.A.I.; Sharif I.; Sapari S.; Abdul Razak F.I.; Dzulkifli N.N.
author_sort Razali N.Z.K.; Sheikh Mohd Ghazali S.A.I.; Sharif I.; Sapari S.; Abdul Razak F.I.; Dzulkifli N.N.
title Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
title_short Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
title_full Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
title_fullStr Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
title_full_unstemmed Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
title_sort Synthesis, characterisation and corrosion inhibition screening on 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone: morphology, weight loss and DFT studies
publishDate 2022
container_title Chemical Papers
container_volume 76
container_issue 9
doi_str_mv 10.1007/s11696-022-02297-8
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85131880245&doi=10.1007%2fs11696-022-02297-8&partnerID=40&md5=4acc8dbc663fc9671e44638eafdcb1ca
description Mild steel is often used as a construction material in the industry because of its relatively low price. However, due to its low corrosion resistance, some form of a protective film should be applied to prevent it from rusting in the corrosive environment. Thiosemicarbazone is one of the Schiff base ligands that can inhibit corrosion due to the presence of electronegative atoms such as N, S, and π electrons that can cause an efficient adsorption on the mild steel surface. This research aims to synthesise of 2-chloroacetophenone 4-ethyl-3-thiosemicarbazone (2ClAcTSC) and the structure was confirmed using an elemental analyser, UV–Vis, NMR and ATR-FTIR. The inhibitive effects of 2ClAcTSC were studied on mild steel in 1 M HCl and H2SO4 by using the weight loss method and Scanning Electron Microscopy (SEM). It was found that the 2ClAcTSC has better effectiveness in HCl rather than H2SO4 solution. Moreover, the inhibition efficiency increases as the inhibitor concentration increases. The SEM results verified that the inhibitor had been adsorbed on the mild steel surface to form a protective layer. Density Functional Theory (DFT) computations are performed to correlate inhibitor efficiency with intrinsic molecular parameters. The study revealed that the results obtained are consistent with the experimental data reported. © 2022, Institute of Chemistry, Slovak Academy of Sciences.
publisher Springer Science and Business Media Deutschland GmbH
issn 3666352
language English
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