Evaluation of the corrosion inhibiting efficacy of a newly synthesized nitrone against St37 steel corrosion in acidic medium: Experimental and theoretical approaches

Gerengi, Hüsnü; Solomon, Moses M.; Öztürk, Serkan; Yıldırım, Ayhan; Gece, Gökhan; Kaya, Ertuğrul

doi:10.1016/j.msec.2018.08.031

Cited by 46 publications

(19 citation statements)

References 67 publications

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“…The steady state OCP was obtained at interval of two hours. EIS was conducted at 10 mV amplitude signal peak-to-peak corrosion potential ( E corr ) with a 10 MHz to 100 kHz of frequency range 39 . The output was processed by the ZsimpWin 3.21 software.…”

Section: Methodsmentioning

confidence: 99%

Sodium nitrite as a corrosion inhibitor of copper in simulated cooling water

Rizvi

Gerengi

Uygur

et al. 2021

Sci Rep

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The corrosion inhibition behavior of sodium nitrite (NaNO2) towards pure copper (99.95%) in simulated cooling water (SCW) was investigated by means of electrochemical impedance spectroscopy (EIS) and dynamic electrochemical impedance spectroscopy (DEIS). NaNO2 interferes with metal dissolution and reduce the corrosion rate through the formation or maintenance of inhibitive film on the metal surface. Surface morphologies illustrated that the surface homogeneity increased on adding sodium nitrite. Sodium nitrite’s adsorption on copper surface followed the modified form of Langmuir, Freundlich and Frumkin isotherms. Physiosorption mode was involved in the corrosion protection. Electrochemical results revealed an corrosion resistance of copper increases on increasing the inhibitor concentration. The DEIS results indicated that copper corrosion mechanism could be hindered by 50% even after interval of 24 h by optimum concentration of sodium nitrite. The maximum inhibition was achieved with 2000 ppm of NaNO2. With this concentration, inhibition efficiency of up to 61.8% was achievable.

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Section: Methodsmentioning

confidence: 99%

Sodium nitrite as a corrosion inhibitor of copper in simulated cooling water

Rizvi

Gerengi

Uygur

et al. 2021

Sci Rep

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“…EIS was conducted at an amplitude signal of 10 mV peakto-peak corrosion potential (E corr ) with a frequency range of 30 mHz to 100 kHz. 28 The resultant data were analyzed by the ZsimpWin 3.21 software. The percent inhibition efficiency η EIS is related to the R ct values according to eq 3.…”

Section: Experiments and Methodsmentioning

confidence: 99%

Investigation of “Propolis” as a Green Inhibitor of SAE 1010 Carbon Steel Corrosion in 3.5% NaCl Environment

Rizvi

Gerengi

Yıldız

et al. 2020

Ind. Eng. Chem. Res.

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The anticorrosion performance of ethanolic extract of propolis (EEP) on SAE 1010 carbon steel specimens dipped in 3.5% NaCl was evaluated by advanced electrochemical and surface morphological assessments. The adsorption of EEP on the surface of the specimens investigated was delineated by an optical profilometer (OP), atomic force microscopy (AFM), and scanning electron microscopy (SEM) before and after immersion in aqueous solution of 3.5% NaCl. The electrochemical feedback assisted by PDP, EIS, and DEIS of the inhibited electrodes was compared with that of the uninhibited electrodes, and EEP's role in the formation of a protective barrier was identified. All the qualitative and quantitative data thus obtained establish EEP as a potential inhibitor for the SAE 1010 carbon steel corrosion in NaCl solution.

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“…In past decades, large numerals of compounds have been examined for corrosion protection. [12][13][14][15] In fact, corrosion inhibitors could be divided into three kinds based on their chemical structure variances: organic, inorganic, and mixed compound inhibitors. [16,17] Inhibitors from inorganic type including chromate, nitrite, borate, and phosphate could form impermeable films on C-steel interfaces to impede the harsh corrosion; however, they are generally extremely toxic and cause serious damage to the environment.…”

Section: Introductionmentioning

confidence: 99%

Targeted synthesis of two iron(III) tetradentate dibasic chelating Schiff base complexes toward inhibition of acidic induced steel corrosion: Empirical and DFT insights

El‐Lateef

Mohamad

Shehata

et al. 2022

Applied Organom Chemis

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Two new azomethine chelates for Fe 3+ ions were prepared from two dibasic tetradentate chelating imine ligands. The studied Schiff base ligands were 2,2 0 -((1E,1 0 E)-((4-nitro-1,2-phenylene)bis(azanylylidene))bis(methanylylidene))bis (4-bromophenol) (NABS) and 2,2 0 -((1E,1 0 E)-((4,5-dimethyl-1,2-phenylene)bis (azanylylidene))bis(methanylylidene))bis(4-bromophenol) (MABS). Alternative spectral and physicochemical tools such as Fourier transform infrared spectroscopy (FTIR), C 13 NMR, 1 H NMR, and CHN analyses, thermogravimetric analysis (TGA), molecular electronic spectra, and magnetic susceptibility measurements were applied to inspect the structural composition of the compounds under investigation. In addition, the DFT approach was used to optimize the geometry of all compounds in order to get ideal structures and important characteristics. The synthesized compounds examined as an anticorrosive films of C-steel in acidic chloride medium utilizing theoretical and electrochemical studies such electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), and potentiodynamic anodic polarization curve (PAP) approaches. The inhibition efficiency augmented with the increasing of the inhibitor dose. The prepared Schiff bases and their iron complexes exhibited protection capacity around 96.8% in the presence of 0.5 mmol L À1 . PDP outcomes approve the additive molecules act as mixed inhibitors. The Langmuir model is followed by Schiff bases and their iron complexes as it is contains both chemical and physical adsorption on the metal interface. The surface morphology of the substrate (in blank and inhibited systems) was scanned using field-emission scanning electron microscopy (FESEM). A good agreement among experimental techniques and corresponding density functional theory (DFT) results was found, which confirmed the purity of the studied compounds and suggested octahedral geometry around Fe(III) ions in both MABSFe and NABSFe complexes.

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Evaluation of the corrosion inhibiting efficacy of a newly synthesized nitrone against St37 steel corrosion in acidic medium: Experimental and theoretical approaches

Cited by 46 publications

References 67 publications

Sodium nitrite as a corrosion inhibitor of copper in simulated cooling water

Sodium nitrite as a corrosion inhibitor of copper in simulated cooling water

Investigation of “Propolis” as a Green Inhibitor of SAE 1010 Carbon Steel Corrosion in 3.5% NaCl Environment

Targeted synthesis of two iron(III) tetradentate dibasic chelating Schiff base complexes toward inhibition of acidic induced steel corrosion: Empirical and DFT insights

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