Surface analysis and adsorption behavior of caffeine as an environmentally friendly corrosion inhibitor at the copper/aqueous chloride solution interface

Messaoudi, H.; Djazi, Fayçal; Litim, Mohamed; Keskin, Bahadır; Slimane, M.; Bekhiti, Djillali

doi:10.1080/01694243.2020.1756156

Cited by 12 publications

(5 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ΔGa = ΔHa + T ΔSa (6) where N is Avogadro's number, h is the universal Plank's constant and R is the gas constant. The ΔHa and ΔS𝑎 values were determined from the curve ln (CR/T) = f (1/T), which represents a straight line (Fig.…”

Section: Effect Of Temperature On Inhibitor Activity and Thermodynami...mentioning

confidence: 99%

“…4 The inhibition of copper corrosion by organic compounds is one of the major objectives of many researchers. [5][6][7] Organic compounds possessing oxygen, nitrogen, phosphorus and sulfur have been employed extensively as organic inhibitors. [8][9][10][11] However, the majority of them are extremely harmful to both humans and the environment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Green inhibition of copper corrosion by ammoides verticillata oil in 1M nitric acid: weight lossand Raman spectroscopic mapping studies

CHABANE,

DERGAL,

ATTAR

et al. 2023

Rev.Roum.Chim.

View full text Add to dashboard Cite

The present study was designed to predict and analyze the effect of the essential oil of Ammoides verticillata (A.E.O) originating from the city of Souahlia (Tlemcen), which is located in northwest Algeria and its major compound on the inhibition of copper corrosion in 1 M HNO3. Gas chromatography coupled with mass spectrometry (GC-MS) revealed that carvacrol constitutes 67.89% of the essential oil. The study investigated the effect of concentration and temperature on copper corrosion and inhibitory efficiency using the gravimetric method. The findings indicate that A.E.O and carvacrol independently exhibit good inhibition properties on copper in 1 M HNO3, with the highest inhibitory efficiency at 1.5 g/L for A.E.O and 0.1 g/L for carvacrol, respectively. The adsorption of A.E.O and carvacrol on copper follows the Langmuir and Frumkin isotherm, respectively. The study also found competitive adsorption between iodide ions and A.E.O, as shown by the synergy parameter. Finally, Raman spectroscopy was used to analyze the immersed copper surface and mapping was used to characterize the surface layers in the different corrosive media used, which allowed us to develop a precise mapping of the corroded parts with the inhibited parts. This method will allow us to really see the inhibition effect of our materials.

show abstract

Section: Effect Of Temperature On Inhibitor Activity and Thermodynami...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Green inhibition of copper corrosion by ammoides verticillata oil in 1M nitric acid: weight lossand Raman spectroscopic mapping studies

CHABANE,

DERGAL,

ATTAR

et al. 2023

Rev.Roum.Chim.

View full text Add to dashboard Cite

show abstract

“…Table 1 lists the charges of C, Br, N, O, F, Cl atoms of the five studied pyrazolylnucleosides inhibitors. Many studies indicate a correlation between the corrosion inhibition efficiency of an inhibitor and its Mulliken charges 48,60,[62][63][64] . It has been previously shown that atoms bearing most negative charges will share electrons more easily with the unoccupied orbital of the metal surface atoms with which they react 65 .…”

Section: Electrostatic Potential Maps (Esp)mentioning

confidence: 99%

DFT, Monte Carlo and molecular dynamics simulations for the prediction of corrosion inhibition efficiency of novel pyrazolylnucleosides on Cu(111) surface in acidic media

Oukhrib

Abdellaoui

Berisha

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Five novel pyrazolylnucleosides have been evaluated theoretically for their corrosion inhibition efficiency on the Cu(111) surface in acidic media. DFT calculations were carried out to exhibit the intrinsic properties such as lowest unoccupied (ELUMO) and highest occupied (EHOMO) molecular orbital energies, as well as energy gap (∆E), chemical hardness (η), chemical softness (σ), electronegativity (χ), electrophilicity (ω) and nucleophilicity (ε). The theoretical FT-IR spectra were recorded to indicate the presence of the specific bonds in the studied molecules. The surface interactions between the inhibitor molecules and the metal surface were investigated using molecular dynamics simulations and Monte Carlo (MC) simulations. As a result, we have found that the inhibitor pyrazolylnucleosides 5a–e have strong interactions with Cu(111) surface, and therefore have excellent predictive inhibition power against copper corrosion.

show abstract

“…Different classes of organic compounds have been used as corrosion inhibitors; however, the investigation of natural organic compounds is particularly interesting because of their relatively low cost and because they are considered environmentally safe [ 15 , 16 , 17 ]. In this context, carbohydrates [ 18 , 19 , 20 , 21 , 22 , 23 ] and xanthine derivatives such as theophylline [ 24 , 25 ], theobromine [ 26 ], and caffeine [ 14 , 18 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ] have been used as corrosion inhibitors of metals.…”

Section: Introductionmentioning

confidence: 99%

“…It has been reported that some carbohydrate derivatives could act as efficient, eco-friendly inhibitors [ 19 ]. Moreover, caffeine is a naturally occurring molecule and a non-toxic, environmentally friendly substance found in several foods or drug formulations, whose use as a corrosion inhibitor has been evaluated for a series of metals and alloys [ 28 , 29 , 30 , 31 , 32 , 33 ]. A few reports have disclosed the capacity of theophylline or theobromine derivatives as organic corrosion inhibitors in metals under an acidic medium.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies on Acid Corrosion Inhibition of API 5L X70 Steel with Novel 1-N-α-d-Glucopyranosyl-1H-1,2,3-Triazole Xanthines

et al. 2023

View full text Add to dashboard Cite

A series of novel 1-N-α-d-glucopyranosyl-1H-1,2,3-triazole xanthines was synthesized from azido sugars (glucose, galactose, and lactose) and propargyl xanthines (theophylline and theobromine) using a typical copper (I)-catalyzed azide–alkyne 1,3-dipolar cycloaddition. The corrosion inhibition activities of these new carbohydrate-xanthine compounds were evaluated by studying the corrosion of API 5 L X70 steel in a 1 M HCl medium. The results showed that, at 10 ppm, a 90% inhibition efficiency was reached by electrochemical impedance spectroscopy. The inhibitory efficiency of these molecules is explained by means of quantum chemical calculations of the protonated species with the solvent effect, which seems to better represent the actual situation of the experimental conditions. Some quantum chemical parameters were analyzed to characterize the inhibition performance of the tested molecules.

show abstract

Surface analysis and adsorption behavior of caffeine as an environmentally friendly corrosion inhibitor at the copper/aqueous chloride solution interface

Cited by 12 publications

References 72 publications

Green inhibition of copper corrosion by ammoides verticillata oil in 1M nitric acid: weight lossand Raman spectroscopic mapping studies

Green inhibition of copper corrosion by ammoides verticillata oil in 1M nitric acid: weight lossand Raman spectroscopic mapping studies

DFT, Monte Carlo and molecular dynamics simulations for the prediction of corrosion inhibition efficiency of novel pyrazolylnucleosides on Cu(111) surface in acidic media

Experimental and Theoretical Studies on Acid Corrosion Inhibition of API 5L X70 Steel with Novel 1-N-α-d-Glucopyranosyl-1H-1,2,3-Triazole Xanthines

Contact Info

Product

Resources

About