Investigation on corrosion inhibition and adsorption mechanism of triazine-thiourea derivatives at mild steel / HCl solution interface: Electrochemical, XPS, DFT and Monte Carlo simulation approach

Paul, Priya Kumari; Yadav, Mahendra

doi:10.1016/j.jelechem.2020.114599

Cited by 77 publications

(22 citation statements)

References 52 publications

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“…[60] Interestingly, the only peak that can be observed on the N1s spectra (Figure 10f) at a binding energy of 400.0 eV and has been reported to be either pyrrolic nitrogen or nitrogen atom in a ring bonded with a carbon atom (CÀ N). [48,61,62] This is the confirmation that the imidazole nitrogen in HDBI chemically bonded with the LCS.…”

Section: Xps Analysissupporting

confidence: 59%

“…This is an indication that apart from the adsorption process's spontaneity, HDBI is chemically adsorbed on the LCS surface in 15 % HCl at 25°C due to the attribution of ΔG ads value greater than À 40 kJ mol À 1 to be chemisorption adsorption process. [46][47][48] This nature of the adsorption process can be attributed to the transfer of an electron to the vacant dorbital of metal (majorly Fe) due to nitrogen heteroatom electron-rich centers in HDBI. [38] DG…”

Section: Adsorption Isotherm and Effect Of Temperature Langmuir Isothermmentioning

confidence: 99%

“…The presence of the two spin-orbital (2p 1/2 and 2p 3/2 ) comprises of both Fe 2 + and Fe 3 + without satellite peak can be observed in Fe2p spectra. [54,55] Peaks that can be attributed to oxides, hydroxides, and chlorides of Fe due to LCS presence in HCl and HDBI can be observed [48] with their relative intensity and binding energies enumerated in Table 6.…”

Section: Xps Analysismentioning

confidence: 99%

“…This adsorption nature was predicted to transfer electrons from the induced delocalized pi-electron system of the imidazole ring and the aromatic ring to the metal's vacant d-orbital. [38,48] Besides, the induced μ…”

Section: Proposed Mechanism Of Corrosion Inhibition Of Hdbimentioning

confidence: 99%

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Evaluation of 1‐Hexadecylbenzimidazole as a Corrosion Inhibitor on Low Carbon Steel 15 % HCl Solution Interface

Odewunmi

Mazumder

2021

ChemistrySelect

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The performance of 1-Hexadecylbenzimidazole (HDBI) as an effective corrosion inhibitor of low carbon steel (LCS) in 15 % HCl solution was evaluated with different electrochemical techniques and weight loss measurements. HDBI was a mixedtype corrosion inhibitor with 50 mg L À 1 concentration achieving a 97 % corrosion inhibition efficiency in 15 % HCl solution at 25°C. The nature of adsorption of HDBI on LCS in the corrosive medium was predicted to be chemisorption, as revealed by the Langmuir isotherm model and the thermodynamic study.Weight loss measurements of 50 mg L À 1 HDBI at a different temperature indicated the effectiveness of HDBI at elevated temperatures. The X-ray photoelectron spectroscopy (XPS) was used to ascertain the chemical state of the adsorbed HDBI on the LCS surface. The surface morphology analysis was investigated with a flame emission scanning electron microscope integrated with an energy dispersive spectrometer (FESEM-EDX).

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Section: Xps Analysissupporting

confidence: 59%

Section: Adsorption Isotherm and Effect Of Temperature Langmuir Isothermmentioning

confidence: 99%

Section: Xps Analysismentioning

confidence: 99%

Section: Proposed Mechanism Of Corrosion Inhibition Of Hdbimentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of 1‐Hexadecylbenzimidazole as a Corrosion Inhibitor on Low Carbon Steel 15 % HCl Solution Interface

Odewunmi

Mazumder

2021

ChemistrySelect

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“…Thiourea derivatives are also reported as organic inhibitors for corrosion. This property is due to the easily protonation of the sulfur atom in acidic medium [12,13]. In the recent past we have started to study the coordination of some ligands derived from thiourea having a number of interesting properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Crystal Structure of 1-(2-benzamidophenyl)-3-benzoylthiourea Hemihydrate

Faye¹,

Sylla-Gueye²,

Thiam³

et al. 2020

SJC

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The dissymmetric compound C 21 H 17 N 3 O 2 S.0.5H 2 O obtained by a reaction of 1,2-diaminobenzene, potassium thiocyanate and benzoyl chloride in 1/1/2 ratio is characterized by elemental analyses, IR, and NMR spectroscopies. The structure is elucidated by X-ray diffraction technic. The compound crystallizes in the monoclinic system with a space group of I2. The asymmetric unit contains one hemihydrate organic molecule. The title thiourea derivative, features an almost planar, C 2 N 2 S (S1/N1/N2/C7/C8) moiety, with a maximum deviation from the least-squares plane of 0.0422 (3) Å. This moiety is flanked by a disubstituted and a monosubstituted phenyl rings. The dihedral angles between the thiourea and the monosubstituted phenyl ring and the thiourea and the central disubstituted phenyl ring are respectively 10.418 (7)° and 60.292 (2)°, indicating twist in the molecule. On the other arm, a phenyl ring supported by an amide function, which is linked to the central ring through the nitrogen atom, is present. The dihedral angle between this phenyl group and the central disubstituted phenyl is 76.862 (7)° showing that their mean planes are not coplanar. Intramolecular S(thiono)-H…O(water) hydrogen bonds which close in S(6) and S(7) rings consolidate the conformation. Intermolecular N(amido)-H…O(carbonyl) which form layers parallel to the ac plane stabilized the structure.

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Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Qin

Kuang

et al. 2022

Adv Funct Materials

144

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Aqueous zinc ion batteries (AZIBs) are receiving increasing attention for large-scale energy storage systems owing to their appealing features with intrinsic safety, low cost, and scalability. Unfortunately, the water-induced parasitic reactions and dendrite growth on the Zn anode severely impede the further development of AZIBs. Herein, a thiourea additive is introduced into ZnSO 4 electrolyte to construct unique metal-molecule interface for simultaneously regulating the Zn anode interface chemistry and the bulk electrolyte environment. Experimental results and theoretical calculations reveal that the formed metal-molecule interface can not only serve as a corrosion inhibitor for alleviating the water-induced side reactions, but also act as a Zn 2+ ion regulator for promoting the homogenous Zn deposition, thus achieving a corrosion-free and dendrite-free Zn anode. Consequently, the Zn|Zn symmetric cell exhibits an extended lifespan of 1200 h at 1 mA cm -2 , 1mAh cm -2 , and a high cumulative capacity of 3000 mAh cm -2 at 10 mA cm -2 . When paired with V 2 O 5 cathode, the Zn|V 2 O 5 full cell delivers a high capacity retention of 76.0% after 1000 cycles at 1 A g -1 . This study paves a new way to modulate Zn electrode interface chemistry by the novel design of metal-molecule interface for advanced rechargeable Zn metal batteries and beyond.

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Investigation on corrosion inhibition and adsorption mechanism of triazine-thiourea derivatives at mild steel / HCl solution interface: Electrochemical, XPS, DFT and Monte Carlo simulation approach

Cited by 77 publications

References 52 publications

Evaluation of 1‐Hexadecylbenzimidazole as a Corrosion Inhibitor on Low Carbon Steel 15 % HCl Solution Interface

Evaluation of 1‐Hexadecylbenzimidazole as a Corrosion Inhibitor on Low Carbon Steel 15 % HCl Solution Interface

Synthesis, Characterization and Crystal Structure of 1-(2-benzamidophenyl)-3-benzoylthiourea Hemihydrate

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

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