Adsorption and anticorrosion behavior of 1-((pyridin-2-ylamino)(pyridin-4-yl)methyl)pyrrolidine-2,5-dione on mild steel surface in hydrochloric acid solution

Jeeva, Mani; Boobalan, Maria Susai; Prabhu, G. Venkatesa

doi:10.1007/s11164-017-3112-3

Cited by 17 publications

(6 citation statements)

References 64 publications

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“…This observation showed that in acidic electrolyte, interaction of inhibitor molecules (containing heteroatoms) with metallic surface involves the physisorption mechanism, which is followed by chemisorption mechanism in the latter stage of the interaction. The chemisorption is resulted by sharing of unshared electron pairs of heteroatoms and π‐electrons of the multiple bonds with d‐orbitals of the surface metallic atoms . Obviously, the electron sharing ability and therefore effectiveness toward metallic corrosion inhibition largely depend upon the electronegativity of the heteroatoms present in the molecules structures of the inhibitor molecules .…”

Section: Introductionmentioning

confidence: 99%

Sulfur and phosphorus heteroatom‐containing compounds as corrosion inhibitors: An overview

Verma

Verma²,

Ebenso

et al. 2018

Heteroatom Chemistry

139

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Use of organic compounds containing nitrogen (N), oxygen (O), sulfur (S), and phosphorus (P) heteroatoms in their molecular structures is one of the most effective, economic, and practical corrosion inhibitors. The effectiveness of the heteroatoms toward metallic corrosion inhibition follows the order: P > S > N > O. The metal‐inhibitor interactions involve the charge sharing between the heteroatoms and empty d‐orbitals of the surface metallic atoms; therefore, a heteroatom with lower electronegativity value is more potent to form strong bonding (charge sharing) with metallic surface as compared to more electronegative heteroatom. Literature study reveals that almost all corrosion inhibitors have either one or more heteroatoms in their molecular structures particularly in the form of polar functional groups, which enhance their adsorption tendency on metallic surface. Present review paper features the collection of some major works that have been published on metallic corrosion inhibition containing these P, S, O, and N heteroatoms. Since now, several review articles have been published describing the application of N and O atoms; however, the reviews on use of P and S heteroatoms are scare. Therefore, aim of the present article was to mainly describe the collection of corrosion inhibitors containing S and P heteroatoms.

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Section: Introductionmentioning

confidence: 99%

Sulfur and phosphorus heteroatom‐containing compounds as corrosion inhibitors: An overview

Verma

Verma²,

Ebenso

et al. 2018

Heteroatom Chemistry

139

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“…C dl values drop due to either a decrease in the local dielectric constant or an increase in the thickness of the electric double layer, showing that the inhibitor molecules function by adsorption at the metal/solution interface . The constant displacement of water molecules caused by organic molecule adsorption on the metal surface may also help to reduce the extent of metal dissolution . The Bode-phase diagram (Figure ) illustrates the evolution of the Z-module as a function of frequency in the acidic 1 M HCl environment without and with different concentrations of the TMAT and DMTMAT inhibitors.…”

Section: Results and Discussionmentioning

confidence: 99%

“…58 The constant displacement of water molecules caused by organic molecule adsorption on the metal surface may also help to reduce the extent of metal dissolution. 59 The Bode-phase diagram (Figure 4) illustrates the evolution of the Z-module as a function of frequency in the acidic 1 M HCl environment without and with different concentrations of the TMAT and DMTMAT inhibitors. This diagram shows the behavior of the inhibitory layer that TMAT and DMTMAT molecules form at the surface of carbon steel as a result of an adsorption process, where the Z-module values increased by increasing the inhibitor concentrations.…”

Section: Electrochemical Impedance Spectroscopy (Eis) Studiesmentioning

confidence: 99%

Effect of Adsorption and Interactions of New Triazole-Thione-Schiff Bases on the Corrosion Rate of Carbon Steel in 1 M HCl Solution: Theoretical and Experimental Evaluation

Toghan,

Alduaij,

Fawzy

et al. 2024

ACS Omega

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Due to the unique properties of steel, including its hardness, durability, and superconductivity, which make it an essential material in many industries, it lacks corrosion resistance. Herewith, two novel triazole-thione Schiff bases, namely, (E)-5methyl-4-((thiophen-2-ylmethylene)amino)-2,4-dihydro-3H-1,2,4-triazole-3-thione (TMAT) and (E)-4- (((5-(dimethylamino)thiophen-2-yl)methylene)amino)-5-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (DMTMAT), were synthesized and characterized. The corrosion inhibition (CI) ability of these two molecules on carbon steel in an aqueous solution of 1 M HCl as well as their interaction with its surface was studied using a number of different techniques. The results confirmed that the CI capability of these organic molecules depends on their strong adsorption on the metal surface and the formation of a protective anticorrosion film. Weight loss tests revealed that the inhibition efficiencies of TMAT and DMTMAT were 91.1 and 94.0%, respectively, at 1 × 10 −3 M concentrations. The results of electrochemical impedance spectroscopy (EIS) indicated that there was a direct relationship between the inhibitor concentration and the transfer resistance. Potentiodynamic polarization (PDP) experiments have proven to be mixed-type inhibitors of C-steel in aqueous hydrochloric acid solution and follow the Langmuir adsorption isotherm model. Several thermodynamic and kinetic parameters were calculated. The negative values of the adsorption-free energy are −36.7 and −38.5 kJ/mol for TMAT and DMTMAT, respectively, confirming the spontaneity of the adsorption process. The MD simulation study's findings show that the inhibitor molecules are nearly parallel to the metal surface. The interaction energy calculated by the MD simulation and the inhibitory trend are the same. The practical implementation is consistent with what the computer models predicted.

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“…In this study, we utilized the Langmuir adsorption isotherm, described by the equation, as it more accurately depicts the adsorption behavior of SB on mild steel surfaces. ,, The data collected from EFM were utilized in the subsequent application of the following equation c θ = 1 k + c In Figure and Table , the obtained values are for K ads , which represents the equilibrium constant of the inhibitor adsorption process. These higher K ads values indicate a more robust adsorption of the azo compounds on the surface of carbon steel. , The calculation of the free energy of adsorption Δ G ads 0 was performed using the following equation normalΔ G ads 0 = − italicRT 0.25em ln false( 10 6 K ads false) The factor 10 6 corresponds to the concentration of water molecules in the solution (measured in mol/L), and R denotes the universal gas constant with a value of 8.314 J K –1 mol –1 . The Δ G ads 0 values for I, II, and III are determined as −58.57, −54.88, and −55.67 kJ/mol, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…These higher K ads values indicate a more robust adsorption of the azo compounds on the surface of carbon steel. 47,48 The calculation of the free energy of adsorption ΔG ads 0 was performed using the following equation 49 = G RT K ln (10 ) ads 0 6 ads (12) The factor 10 6 corresponds to the concentration of water molecules in the solution (measured in mol/L), and R denotes the universal gas constant with a value of 8.314 J K −1 mol −1 . The ΔG ads 0 values for I, II, and III are determined as −58.57, −54.88, and −55.67 kJ/mol, respectively.…”

Section: Evaluation Of the Inhibitor As Anticorrosionmentioning

confidence: 99%

Anticorrosion Agents for Carbon Steel in Acidic Environments: Synthesis and Quantum Chemical Analysis of New Schiff Base Compounds with Benzylidene

Thabet,

AlGhamdi,

Mohammed

et al. 2023

ACS Omega

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Novel Schiff bases (SBs), namely, N 1 ,N 2 -bis(2-(((E)-4-chlorobenzylidene)amino)ethyl)ethane-1,2-diamine (I), N 1 ,N 2 -bis(2-(((E)-4-(dimethylamino)benzylidene)amino)ethyl)ethane-1,2-diamine (II), and N 1 ,N′ 1 -(ethane-1,2-diyl)bis(N 2 -((((Z)-4-dimethylamino)benzylidene) amino)methylethane-1,2diamine) (III), were prepared and characterized by using elemental analysis, IR, and 1 H NMR spectroscopy. For assessing carbon steel in diverse settings, with and without inhibitors at varying concentrations, electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PP) techniques were employed. The results showed that the synthesized inhibitors effectively decreased the corrosion rate of carbon steel in acidic media and the inhibition efficiency reached up to 93% for compound III at a concentration of 250 ppm. In addition, all prepared compounds were successful as anticorrosion agents, and the inhibition mechanism followed chemisorption from the Langmuir isotherm. The data obtained from the theoretical analysis show that the efficiency of the prepared compounds was in the order III < II < I. Furthermore, quantum chemical calculations were performed to gain insight into the electronic structure of the compounds. The analysis of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) showed that compound III had the highest surface coverage due to its specific molecular structure and spacer. This observation agreed well with the Langmuir adsorption data.

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Adsorption and anticorrosion behavior of 1-((pyridin-2-ylamino)(pyridin-4-yl)methyl)pyrrolidine-2,5-dione on mild steel surface in hydrochloric acid solution

Cited by 17 publications

References 64 publications

Sulfur and phosphorus heteroatom‐containing compounds as corrosion inhibitors: An overview

Sulfur and phosphorus heteroatom‐containing compounds as corrosion inhibitors: An overview

Effect of Adsorption and Interactions of New Triazole-Thione-Schiff Bases on the Corrosion Rate of Carbon Steel in 1 M HCl Solution: Theoretical and Experimental Evaluation

Anticorrosion Agents for Carbon Steel in Acidic Environments: Synthesis and Quantum Chemical Analysis of New Schiff Base Compounds with Benzylidene

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