Electrochemical measurements and theoretical calculations on the inhibitive interaction of Plectranthus amboinicus leaf extract with mild steel in hydrochloric acid

Anupama, K.K.; Ramya, K.; Joseph, Abraham

doi:10.1016/j.measurement.2016.10.030

Cited by 54 publications

(28 citation statements)

References 38 publications

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“…The inter-modulation spectra had been included current responses allocated for harmony and inter-modulation current peaks. The higher peaks had been utilized to compute the corrosion current density (icorr), the Tafel slopes (βa and βc) and the causality factors CF2 & CF3 [26].…”

Section: Electrochemical Frequency Modulation (Efm)mentioning

confidence: 99%

“…A large amount of natural products origin have been biodegradable, harmless and easily existing in adequate amount as well as gathering the structural considerations. A variety of plant parts for example leaves, fruits, seeds and flowers have been extracted and utilized as corrosion inhibitors [10][11][12][13][14][15][16][17][18][19][20]. Gained data presented from these studies have been confirmed that Chicoriumintybus extract controlled remarkable abilities to restrain the corrosion reaction.…”

Section: Introductionmentioning

confidence: 99%

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Synergistic Corrosion Inhibition Activity of the Chicoriumintybus Extract and Iodide Ions for Mild Steel in Acidic Media

El-Katori

Fouda

Mohamed

2020

J. Chil. Chem. Soc.

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Herein, An examination into the corrosion inhibition of mild steel (MS) in 1.0 M HCl by the Chicoriumintybus extract as a green inhibitor had been achieved via chemical, electrochemical and morphological measurements. The effect of KI additives on corrosion inhibition efficiency was carried out using a weight loss method. The results reveal that the Chicoriumintybus extract inhibited the corrosion reaction by adsorption onto the metal/solution interface. Inhibition efficiency, increased with the Chicoriumintybus concentration and synergistically increased with the presence of KI. The addition of iodide ions to the Chicoriumintybus extract raises inhibition efficiency of 74 to 99%. Polarization data suggest that the Chicoriumintybus extract acts as a mixed inhibition-mechanism. This observation was further corroborated by the fit of experimental adsorption data to the Temkin isotherm. The results were confirmed by AFM, SEM images and ATR-IR for the surface morphology.

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Section: Electrochemical Frequency Modulation (Efm)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synergistic Corrosion Inhibition Activity of the Chicoriumintybus Extract and Iodide Ions for Mild Steel in Acidic Media

El-Katori

Fouda

Mohamed

2020

J. Chil. Chem. Soc.

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“…As a significant alloy in the universe, mild steel is the substance of choice in oil manufactures for its ability to work mechanical and low coast [1,2]. In most industrial processes, acid is used in the treatment, cleaning and removal of rust [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Approach to the Corrosion Inhibition of Mild Steel in HCl Solution by a Newly Coumarin

Hashim

Al-Azawi

Al-Bghdadi

et al. 2019

The 23rd International Electronic Conference on Synthetic Organic Chemistry

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New coumarin namely 2-(3-(7-methylcoumarin)acetamido)benzoic acid (MAB) was successfully synthesized by reaction of ethyl 2-(7-methylcoumarin)acetate with anthranilic acid. The chemical structure of MAB was confirmed by FT-IR, NMR spectroscopies and Elemental Analysis. The inhibition performance of MAB was investigated using the weight loss method. The results illustrate the strong adsorption of MAB molecules on the mild steel coupon surface and this adsorption follows the Langmuir adsorption isotherm. DFT calculations were performed to show the relationship between the MAP molecular structure and inhibition performance.

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“…As an important metal in the world, mild steel (MS) is the material of choice in petroleum and machinery industries due to its perfect mechanical workability and economic feasibility 1 , 2 . In many industrial applications, acid cleaning treatment of the MS components is often carried out to remove rust and scales formed after several working cycles 3 .…”

Section: Introductionmentioning

confidence: 99%

L-proline mixed with sodium benzoate as sustainable inhibitor for mild steel corrosion in 1M HCl: An experimental and theoretical approach

Parveen

Mobin

Zehra

et al. 2018

Sci Rep

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Following standard experimental (gravimetric measurements, potentiodynamic polarization measurements, electrochemical impedance measurements, spectroscopic measurements, scanning electron microscopy technique) and theoretical (DFT) approach, inhibition effect of L-proline (LPr) and LPr mixed with sodium benzoate (LPr + NaBenz) for mild steel (MS) corrosion in 1M HCl was studied at 30, 40, 50 and 60 °C. The concentration of LPr was varied between 100–600 ppm, whereas that of NaBenz was fixed at 10 ppm. LPr lowered the corrosion rates of MS to a considerable extent. Corrosion mitigating efficacy of LPr is synergistically enhanced on adding NaBenz at all concentrations. Evaluation of polarization parameters suggested that both LPr and LPr + NaBenz act as mixed type inhibitor with more control on cathodic reaction whereas impedance parameters suggested inhibition of metal corrosion by adsorption at the MS/solution interface. Surface microscopic examination of corroded and uncorroded MS coupons supported the protective effect of adsorbed inhibitor layer at the MS surface. Spectroscopic studies are suggestive of the complex formation between inhibitor molecules and the metal. When LPr is combined with NaBenz, the corrosion inhibition rate was improved greatly. Corrosion mitigating efficacy of LPr or LPr mixed with NaBenz obtained by different techniques are in good agreement and correlate well with theoretical quantum chemical descriptors.

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Electrochemical measurements and theoretical calculations on the inhibitive interaction of Plectranthus amboinicus leaf extract with mild steel in hydrochloric acid

Cited by 54 publications

References 38 publications

Synergistic Corrosion Inhibition Activity of the Chicoriumintybus Extract and Iodide Ions for Mild Steel in Acidic Media

Synergistic Corrosion Inhibition Activity of the Chicoriumintybus Extract and Iodide Ions for Mild Steel in Acidic Media

Experimental and Theoretical Approach to the Corrosion Inhibition of Mild Steel in HCl Solution by a Newly Coumarin

L-proline mixed with sodium benzoate as sustainable inhibitor for mild steel corrosion in 1M HCl: An experimental and theoretical approach

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