XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid
A series of substituted benzylidene Schiff bases (2–4) were tested for their corrosion inhibition efficiency on mild steel in 1 M HCl at 25 °C using electrochemical impedance spectroscopy, polarization and linear polarization resistance measurements. Experimental results demonstrated that the corros...
| 發表在: | Applied Surface Science |
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| 格式: | Article |
| 語言: | English |
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Elsevier B.V.
2019
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| 在線閱讀: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060555005&doi=10.1016%2fj.apsusc.2019.01.149&partnerID=40&md5=4dd0fecdf444c916a296761c395537ba |
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Hashim N.Z.N.; Anouar E.H.; Kassim K.; Zaki H.M.; Alharthi A.I.; Embong Z. |
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Hashim N.Z.N.; Anouar E.H.; Kassim K.; Zaki H.M.; Alharthi A.I.; Embong Z. 2-s2.0-85060555005 XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid 2019 Applied Surface Science 476 10.1016/j.apsusc.2019.01.149 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060555005&doi=10.1016%2fj.apsusc.2019.01.149&partnerID=40&md5=4dd0fecdf444c916a296761c395537ba A series of substituted benzylidene Schiff bases (2–4) were tested for their corrosion inhibition efficiency on mild steel in 1 M HCl at 25 °C using electrochemical impedance spectroscopy, polarization and linear polarization resistance measurements. Experimental results demonstrated that the corrosion inhibition efficiency of the Schiff bases is more potent than their parent amine (1). XPS analysis proves the entire molecule of 3 ligand chemisorbed through a covalent bond (π to π) interaction as found in C[dbnd]C in the benzene ring and C[dbnd]N. The correlation between the corrosion inhibition efficiency and physicochemical and electronic properties of inhibitors (1–4) was investigated by using density functional theory method. Theoretical results clearly showed that the corrosion inhibition efficiency mainly depends on the frontier orbitals parameters (e.g., ionization potential, and electronic affinity). © 2019 Elsevier B.V. Elsevier B.V. 1694332 English Article |
| author |
2-s2.0-85060555005 |
| spellingShingle |
2-s2.0-85060555005 XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| author_facet |
2-s2.0-85060555005 |
| author_sort |
2-s2.0-85060555005 |
| title |
XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| title_short |
XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| title_full |
XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| title_fullStr |
XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| title_full_unstemmed |
XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| title_sort |
XPS and DFT investigations of corrosion inhibition of substituted benzylidene Schiff bases on mild steel in hydrochloric acid |
| publishDate |
2019 |
| container_title |
Applied Surface Science |
| container_volume |
476 |
| container_issue |
|
| doi_str_mv |
10.1016/j.apsusc.2019.01.149 |
| url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060555005&doi=10.1016%2fj.apsusc.2019.01.149&partnerID=40&md5=4dd0fecdf444c916a296761c395537ba |
| description |
A series of substituted benzylidene Schiff bases (2–4) were tested for their corrosion inhibition efficiency on mild steel in 1 M HCl at 25 °C using electrochemical impedance spectroscopy, polarization and linear polarization resistance measurements. Experimental results demonstrated that the corrosion inhibition efficiency of the Schiff bases is more potent than their parent amine (1). XPS analysis proves the entire molecule of 3 ligand chemisorbed through a covalent bond (π to π) interaction as found in C[dbnd]C in the benzene ring and C[dbnd]N. The correlation between the corrosion inhibition efficiency and physicochemical and electronic properties of inhibitors (1–4) was investigated by using density functional theory method. Theoretical results clearly showed that the corrosion inhibition efficiency mainly depends on the frontier orbitals parameters (e.g., ionization potential, and electronic affinity). © 2019 Elsevier B.V. |
| publisher |
Elsevier B.V. |
| issn |
1694332 |
| language |
English |
| format |
Article |
| accesstype |
|
| record_format |
scopus |
| collection |
Scopus |
| _version_ |
1828987875890298880 |