Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis

An organotin(IV) dithiocarbamate compound namely bis(N-ethyl-isopropyl dithiocarbamate)chlorido butyltin (IV) [EIDTC2ClBuSn] was successfully synthesised and characterised, and showed good potentiality as a corrosion inhibitor on mild steel surfaces in 1 M hydrochloric acid (HCl). This organotin(IV)...

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Published in:POLYHEDRON
Main Authors: Alias, Nur Alia Atiqah; Ghazali, Sheikh Ahmad Izaddin Sheikh Mohd; Sirat, Siti Syaida; Yusof, Enis Nadia Md; Sharif, Idris; Dzulkifli, Nur Nadia
Format: Article
Language:English
Published: PERGAMON-ELSEVIER SCIENCE LTD 2024
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Online Access:https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001176444900001
author Alias
Nur Alia Atiqah; Ghazali
Sheikh Ahmad Izaddin Sheikh Mohd; Sirat
Siti Syaida; Yusof
Enis Nadia Md; Sharif
Idris; Dzulkifli
Nur Nadia
spellingShingle Alias
Nur Alia Atiqah; Ghazali
Sheikh Ahmad Izaddin Sheikh Mohd; Sirat
Siti Syaida; Yusof
Enis Nadia Md; Sharif
Idris; Dzulkifli
Nur Nadia
Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
Chemistry; Crystallography
author_facet Alias
Nur Alia Atiqah; Ghazali
Sheikh Ahmad Izaddin Sheikh Mohd; Sirat
Siti Syaida; Yusof
Enis Nadia Md; Sharif
Idris; Dzulkifli
Nur Nadia
author_sort Alias
spelling Alias, Nur Alia Atiqah; Ghazali, Sheikh Ahmad Izaddin Sheikh Mohd; Sirat, Siti Syaida; Yusof, Enis Nadia Md; Sharif, Idris; Dzulkifli, Nur Nadia
Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
POLYHEDRON
English
Article
An organotin(IV) dithiocarbamate compound namely bis(N-ethyl-isopropyl dithiocarbamate)chlorido butyltin (IV) [EIDTC2ClBuSn] was successfully synthesised and characterised, and showed good potentiality as a corrosion inhibitor on mild steel surfaces in 1 M hydrochloric acid (HCl). This organotin(IV) compound was synthesised using in situ method and characterised via physical and spectroscopic analysis. The physical analyses involved are melting point determination and elemental analysis. Meanwhile, the spectroscopy analyses involved are Attenuated Total Reflectance -Fourier Transform Infrared (ATR-FTIR) and Nuclear Magnetic Resonance (NMR), specifically proton (1H), carbon (13C) and tin (119Sn) NMR. Corrosion inhibition efficiency for the synthesised complex was determined using the conventional method of weight loss and electrochemical measurements involving Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarisation (PDP) analysis. Surface analysis techniques such as Scanning Electron Microscopy with Energy Dispersive X -Ray (SEMEDX) and Atomic Force Microscopy (AFM) were also employed. The inhibition efficiency was also found to increase with the concentration of inhibitor solution, and the highest percentage of inhibition efficiency (IE%) recorded was 91.78 %, 87.20 % and 98.27 % at 0.005 mM during weight loss, EIS and PDP analysis, respectively. The interaction between mild steel and the corrosion inhibitor is further described using theoretical studies involving the adsorption isotherm theory and thermodynamic calculation. The adsorption of EIDTC2ClBuSn onto the mild steel surface obeys the Langmuir isotherm, and the type of adsorption involved based on Gibbs Free Energy (Delta Gads) calculation is chemical adsorption. The neutral form of EIDTC2ClBuSn is subjected to the Density Functional Theory (DFT), revealing the predominant delocalisation of high -density electrons around the nitrogen and sulphur atoms. Despite Delta Gads suggesting chemical adsorption, the theoretical investigation indicates the potential protonation of EIDTC2ClBuSn through the nitrogen atom, as identified by the Mulliken population analysis in the DFT study. Consequently, this suggests that the compound is capable of adsorbing onto the mild steel surface through both initial physical adsorption and subsequent chemical adsorption.
PERGAMON-ELSEVIER SCIENCE LTD
0277-5387
1873-3719
2024
252

10.1016/j.poly.2024.116857
Chemistry; Crystallography

WOS:001176444900001
https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001176444900001
title Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
title_short Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
title_full Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
title_fullStr Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
title_full_unstemmed Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
title_sort Synthesis and corrosion inhibitory mechanism study of butyltin(IV) dithiocarbamate in 1 M HCl: Weight loss, electrochemical, langmuir isotherm, surface and DFT analysis
container_title POLYHEDRON
language English
format Article
description An organotin(IV) dithiocarbamate compound namely bis(N-ethyl-isopropyl dithiocarbamate)chlorido butyltin (IV) [EIDTC2ClBuSn] was successfully synthesised and characterised, and showed good potentiality as a corrosion inhibitor on mild steel surfaces in 1 M hydrochloric acid (HCl). This organotin(IV) compound was synthesised using in situ method and characterised via physical and spectroscopic analysis. The physical analyses involved are melting point determination and elemental analysis. Meanwhile, the spectroscopy analyses involved are Attenuated Total Reflectance -Fourier Transform Infrared (ATR-FTIR) and Nuclear Magnetic Resonance (NMR), specifically proton (1H), carbon (13C) and tin (119Sn) NMR. Corrosion inhibition efficiency for the synthesised complex was determined using the conventional method of weight loss and electrochemical measurements involving Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarisation (PDP) analysis. Surface analysis techniques such as Scanning Electron Microscopy with Energy Dispersive X -Ray (SEMEDX) and Atomic Force Microscopy (AFM) were also employed. The inhibition efficiency was also found to increase with the concentration of inhibitor solution, and the highest percentage of inhibition efficiency (IE%) recorded was 91.78 %, 87.20 % and 98.27 % at 0.005 mM during weight loss, EIS and PDP analysis, respectively. The interaction between mild steel and the corrosion inhibitor is further described using theoretical studies involving the adsorption isotherm theory and thermodynamic calculation. The adsorption of EIDTC2ClBuSn onto the mild steel surface obeys the Langmuir isotherm, and the type of adsorption involved based on Gibbs Free Energy (Delta Gads) calculation is chemical adsorption. The neutral form of EIDTC2ClBuSn is subjected to the Density Functional Theory (DFT), revealing the predominant delocalisation of high -density electrons around the nitrogen and sulphur atoms. Despite Delta Gads suggesting chemical adsorption, the theoretical investigation indicates the potential protonation of EIDTC2ClBuSn through the nitrogen atom, as identified by the Mulliken population analysis in the DFT study. Consequently, this suggests that the compound is capable of adsorbing onto the mild steel surface through both initial physical adsorption and subsequent chemical adsorption.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0277-5387
1873-3719
publishDate 2024
container_volume 252
container_issue
doi_str_mv 10.1016/j.poly.2024.116857
topic Chemistry; Crystallography
topic_facet Chemistry; Crystallography
accesstype
id WOS:001176444900001
url https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001176444900001
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