Corrosion Inhibition, Adsorption and Thermodynamic Properties of Poly (Sodium 4-Styrenesulfonate) on Carbon Steel in Phosphoric Acid Medium

Attar, Tarik; Benchadli, Abbes; Messaoudi, Boulanouar; Choukchou-Braham, Esma

doi:10.17721/fujcv10i1p70-83

Cited by 7 publications

(6 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our approach aligned with the methodology outlined in Attar's prior work [39][40], conducting measurements in triplicate and calculating the mean weight loss value, which formed the basis of our analysis. To quantify the corrosion rate ('CR') and gauge the effectiveness of inhibitors, we employed the following equation [39]:…”

Section: Resultsmentioning

confidence: 99%

Investigating the corrosion inhibition of copper using DFT theoretical study with three organic molecules

Messaoudı,

Datousaıd,

Mıssoum

et al. 2024

Turkish Computational and Theoretical Chemistry

Self Cite

View full text Add to dashboard Cite

A theoretical study of the inhibition efficiency of three organic heterocyclic molecules has been thoroughly probed using density functional theory B3LYP/6-31G(d) level. The calculated global quantities such as electrophilicity and nucleophilicity show that the three organic inhibitors are nucleophiles. The obtained values of charge transfer and energy of back-donation show that the 2-amino-4-(4-bromophenyl)thiophene-3-carbonitrile is the best inhibitor. Parr function indices have been calculated to determine the most preferred sites for the nucleophilic attacks towards the electrophilic transition metal surface of copper. The electrostatic surface potential has been mapped in order to explore the major regions of the molecules responsible of the inhibition. It is found that the zone surrounding the nitrogen atom and the -aromatic system of benzene are the one forming the protection layer. The theoretical results are in good commitment with the experimental results.

show abstract

Section: Resultsmentioning

confidence: 99%

Investigating the corrosion inhibition of copper using DFT theoretical study with three organic molecules

Messaoudı,

Datousaıd,

Mıssoum

et al. 2024

Turkish Computational and Theoretical Chemistry

Self Cite

View full text Add to dashboard Cite

show abstract

“…The obtained ΔHa values are in good agreement with the calculated ΔHa from the equation ΔHa=ΔEa−RT at the average experimental temperature (T = 313K). This result suggests that the corrosion process follows an unimolecular reaction mechanism involving the evolution of hydrogen gas (51). Additionally, an increase in the activation entropy values leads to a decrease in the system's disorder due to the adsorption of Betamethasone drug molecules on the copper surface.…”

Section: Determination Of Adsorption Thermodynamic Parametersmentioning

confidence: 93%

Studying the Effectiveness of an Expired Betamethasone Drug in Sulfuric Acid Solutions to Examine the Corrosive Behavior of Copper Using Weight Loss and Experimental Design

ATTAR,

BENCHADLI

2024

Journal of the Turkish Chemical Society Section A: Chemistry

Self Cite

View full text Add to dashboard Cite

Utilizing expired pharmaceuticals as corrosion inhibitors for copper in acidic environments offers compelling advantages, including cost-effectiveness, reduced toxicity compared to traditional inhibitors, and contribution to pharmaceutical waste reduction through recycling. This study investigates the corrosion inhibition of copper in a sulfuric acid solution using varying concentrations of Expired Betamethasone Drug, employing weight loss and Experimental Design methods. The influence of temperature on copper's corrosion behavior is examined within the range of 293–333 K. Results show that inhibition efficiency increases with higher inhibitor concentrations but decreases with rising temperature. Thermodynamic analyses elucidate adsorption and activation processes, revealing that the adsorption of Expired Betamethasone Drug on copper surfaces is characterized as endothermic and spontaneous, aligning well with the Langmuir and Frumkin adsorption isotherms. The activation and free energies of inhibition reactions support a mechanism of physical adsorption. To establish the relationship between factors and responses, we employ response surface methodology (RSM) with regression statistical analysis and probabilistic assessment. Statistical analysis demonstrates highly significant quadratic models for inhibition efficiencies (IE) with a coefficient of multiple regressions (R²) of 0.999. Further model validation confirms a strong fit (adjusted R² = 0.997), with experimental observations closely matching predictions and a highly significant model (Q² = 0.989). The findings reveal that this expired drug exhibits substantial inhibitory power, exceeding 96%, in both experimental and predictive calculations.

show abstract

“…It yields outcomes that better reflect uniform corrosion compared to electrochemical methods, owing to its alignment with realistic experimental conditions (22). The weight loss measurements followed the procedures detailed in our prior work by Attar et al (23)(24)(25). Each measurement was conducted in triplicate, and the resulting weight loss means were both noted and documented.…”

Section: Weight Loss Methodsmentioning

confidence: 99%

Iodine–β-Cyclodextrin: An Effective Corrosion Inhibitor for Carbon Steel in Sulfuric Acid Solution - Experimental Design and Investigating Thermodynamic Parameters

ATTAR,

BENCHADLI,

CHOUKCHOU BRAHAM

et al. 2024

Journal of the Turkish Chemical Society Section A: Chemistry

Self Cite

View full text Add to dashboard Cite

Widely used across industries, carbon steel is vulnerable to corrosion in aggressive environments, especially acidic ones. Thus, effective methods to mitigate metal corrosion from acids are crucial. Inhibitors are extensively used to prevent corrosion in industries, with the potential for improved protective performance. The design of experiments was employed to determine the optimal conditions for enhancing the inhibitor efficiency of Iodine–β-Cyclodextrin (Iodine/β-CD) in a sulfuric acid solution at temperatures ranging from 20°C to 50°C. The relationship between the factors and responses was established using response surface methodology (RSM), employing regression statistical analysis and probabilistic analysis. A single response was recorded: inhibitor efficiency was determined by measuring weight loss before and after immersion in the inhibitor solution. Thermodynamic parameters were also computed to determine adsorption and activation processes. The statistical analysis revealed that the quadratic models for inhibition efficiencies (IE) were highly significant with a coefficient of multiple regressions R2= 0.997. Further validation of the model indicated a good fit (R2 Adj= 0.994), and the experimentally observed values aligned well with predicted ones, demonstrating a highly significant model with Q2= 0.978. The theoretical efficiency predicted by the RSM model was 88.41%, whereas the efficiency observed during the experimental test procedure with the best-evaluated variables was 82.45%. In conclusion, this paper aims to identify the optimal conditions for employing Iodine–β-Cyclodextrin as a new corrosion inhibitor for carbon steel, utilizing experimental design methods. The results indicate that iodine/β-CD exhibits remarkable corrosion inhibitory properties for carbon steel under specific conditions.

show abstract

Corrosion Inhibition, Adsorption and Thermodynamic Properties of Poly (Sodium 4-Styrenesulfonate) on Carbon Steel in Phosphoric Acid Medium

Cited by 7 publications

References 36 publications

Investigating the corrosion inhibition of copper using DFT theoretical study with three organic molecules

Investigating the corrosion inhibition of copper using DFT theoretical study with three organic molecules

Studying the Effectiveness of an Expired Betamethasone Drug in Sulfuric Acid Solutions to Examine the Corrosive Behavior of Copper Using Weight Loss and Experimental Design

Iodine–β-Cyclodextrin: An Effective Corrosion Inhibitor for Carbon Steel in Sulfuric Acid Solution - Experimental Design and Investigating Thermodynamic Parameters

Contact Info

Product

Resources

About