A Thermodynamic Study of Inhibition of Copper Alloy Corrosion in Nitric Acid Using Laurel Leaf Extract
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Abstract
The corrosion inhibition efficiency of copper alloy in HNO₃ solution at different concentrations (0.5, 1, 1.5, and 2 mol/L) was studied by adding bay leaf extract at different concentrations (1000, 2000, 3000, and 4000 ppm). The effect of concentration on the corrosion rate was studied in both the absence and presence of the inhibitor, in addition to choosing the acid concentration (1 mol/L) and varying inhibitor concentrations. The research also included studying the effect of temperature on the corrosion rate in both the absence and presence of the inhibitor. The weight loss method was used to calculate the corrosion rate. A negative heat of adsorption indicates that the reaction is exothermic. The adsorption free energy of the bay leaf extract ranged from 4.6 to 6.1 kJ/mol, and the results indicated that Langmuir adsorption was best. The results of this study showed that the inhibitor reduces corrosion in acidic media and that the inhibition efficiency increases with increasing inhibitor concentration and decreases with increasing temperature. The inhibition rate of the extract reached (92.31%) at an acid concentration of 0.5 mol/L, an inhibitor concentration of 4000 ppm, and a temperature of 298 K. This study showed that the inhibitor has a high corrosion resistance. The results also showed that the bay extract exhibits inhibitory activity, likely due to its high viscosity and high levels of phenolic compounds and flavonoids, as indicated by the HPLC test.
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References
1. Dhiab S, Hassan NK. Study the Effect of Copper Oxide Nanorods Enhanced by Silver Nanoparticles on the Highly Sensitive Gas Sensor. Tikrit Journal of Pure Science. 2024;29(2):67-73. https://doi.org/10.25130/tjps.v29i2.1521
2. Aribou Z, Khemmou N, Belakhmima RA, Chaouki I, Touhami ME, Touir R, et al. Effect of polymer additive on structural and morphological properties of Cu-electrodeposition from an acid sulfate electrolyte: Experimental and theoretical studies. Journal of Electroanalytical Chemistry. 2023;946:117722.
https://doi.org/10.1016/j.jelechem.2023.117722
3. Kaya S, Lgaz H, Thakkur A, Kumar A, Özbakır Işın D, Karakuş N, et al. Molecular insights into the corrosion inhibition mechanism of omeprazole and tinidazole: a theoretical investigation. Molecular Simulation. 2023;49(17):1632-46.
https://doi.org/10.1080/08927022.2023.2256888
4. Mahmood NJ. The effect of adding different percentages of Copper on the corrosion of pure Aluminum. Tikrit J Pure Sci. 2018;2:123-8. https://doi.org/10.25130/tjps.v23i2.660
5. Thakur A, Kumar A, Kaya S, Benhiba F, Sharma S, Ganjoo R, et al. Electrochemical and computational investigations of the Thysanolaena latifolia leaves extract: an eco-benign solution for the corrosion mitigation of mild steel. Results in Chemistry. 2023;6:101147.
https://doi.org/10.1016/j. rechem.2023.101147
6. Yusuf SI, Mohammad SJ, Ali MH. Study Of The Structural Properties Of Al-Zn Compounds Manufactured By Powder Technology And Copper-Reinforced. Tikrit Journal of Pure Science. 2024;29(2):45-52. https://doi.org/10.25130/tjps.v29i2.1493
7. Ren H, Liu Y, Gong Z, Tan B, Deng H, Xiong J, et al. Pumpkin leaf extract as a new, degradable, and environmentally friendly corrosion inhibitor from crop waste. Langmuir. 2024;40(11):5738-52. https://doi.org/10.1021/acs.langmuir.3c03399
8. Ayyannan G, Karthikeyan K, Vivekananthan SS, Gopiraman M, Rathinavelu A. Chemical and electrochemical investigations of high carbon steel corrosion inhibition in 10% HCl medium by quinoline chalcones. Ionics. 2013;19:919-32.
https://doi.org/10.1007/s11581-012-0812-y
9. El-Tabei A, Hegazy M. A corrosion inhibition study of a novel synthesized gemini nonionic surfactant for carbon steel in 1 M HCl solution. Journal of Surfactants and Detergents. 2013;16:757-66. https://doi.org/10.1007/s11743-013-1457-1.
10. Faydy ME, Benhiba F, Alfakeer M, Al-bonayan AM, Timoudan N, Warad I, et al. Corrosion resistance of two newly synthesized 8-quinolinol-benzimidazoles on carbon steel: an experimental and theoretical investigation. Journal of Materials Engineering and Performance. 2024;33(23):12856-74. https://doi.org/10.1007/s11665-023-08919-w
11. Guo L, Zhu S, Zhang S, He Q, Li W. Theoretical studies of three triazole derivatives as corrosion inhibitors for mild steel in acidic medium. Corrosion Science. 2014;87:366-75.
https://doi.org/10.1016/j.corsci.2014.06.040
12. Moretti G, Guidi F, Fabris F. Corrosion inhibition of the mild steel in 0.5 M HCl by 2-butyl-hexahydropyrrolo [1, 2-b][1, 2] oxazole. Corrosion Science. 2013;76:206-18.
https://doi.org/10.1016/j.corsci.2013.06.044
13. Tan B, Liu Y, Gong Z, Zhang X, Chen J, Guo L, et al. Pyracantha fortuneana alcohol extracts as biodegradable corrosion inhibitors for copper in H2SO4 media. Journal of Molecular Liquids. 2024;397:124117. https://doi.org/10.1016/j.molliq.2024.124117
14. Al-Rimawi F, Alayoubi M, Elama C, Jazzar M, Çakıcı A. Use of cinnamon, wheat germ, and eucalyptus oils to improve quality and shelf life of concentrated yogurt (Labneh). Cogent Food & Agriculture. 2020;6(1):1807810. https://doi.org/10.1080/23311932.2020.1807810
15. Yaro AS, Majeed BAA, Atiyah EQ. Synergistic Effect of Potassium Iodide on Inhibitive Performance of Propyl Alcohol during Corrosion of Mild Steel in 1.0 M HCl. Iraqi Journal of Chemical and Petroleum Engineering. 2016;17(1):61-70. https://doi.org/10.31699/IJCPE.2016.1.6
16. Ayoola W, Durowaye S, Andem K, Oyerinde O, Ojakoya J. Effects of surface preparation on the corrosion behavior of mild steel. Tikrit Journal of Engineering Sciences. 2022;29(1):16-25. https://doi.org/10.25130/tjes.29.1.2
17. Nathiya R, Perumal S, Murugesan V, Raj V. Expired drugs: Environmentally safe inhibitors for aluminium corrosion in 1 M H 2 SO 4. Journal of Bio-and Tribo-Corrosion. 2018;4:1-13. https://doi.org/10.1007/s40735-017-0120-1
18. Motawea MM. Electrochemical behavior and theoretical studies of arylazo (1-naphthyl-2-cyanoacetamide) derivatives as new corrosion inhibitors for Inconel 800 in chloride solution. Scientific Reports. 2024;14(1):14683. https://doi.org/10.1038/s41598-024-62795-5
19. Ali MI. Study the Efficiency of Poly Nicotine Amide as an Anticorrosion Coating on Stainless Steel and Study Its Biological Activity. Ibn Al-Haitham Journal For Pure and Applied Sciences. 2022;35(4):161-9. https://doi.org/10.30526/35.4.2856
20. AlWaaly AA, Al-Sawaad HZ, Alasadi AA. Synthesis, Characterization and Evaluation of Two Organic Compounds as Corrosion Inhibitors for Carbon Steel Alloy (C1010) in an acidic medium of 0.1 M HCl. Journal of kufa for chemical sciences. 2022;2(9).
https://doi.org/10.36329/jkcm/2022/v2.i9.13292
21. Kazem SE, Othman AS, editors. Study of The Inhibition Corrosion of Aluminum Metal Using Peppermint Oil in An Acidic Medium. IOP Conference Series: Earth and Environmental Science; 2024: IOP Publishing. http://dx.doi.org/10.1088/1755-1315/1325/1/012050
22. Abdullah SH, Othman AS, editors. Kinetic and thermodynamic study of the inhibition efficiency of watercress oil on corrosion of drinking water pipes in acidic medium. AIP Conference Proceedings; 2024: AIP Publishing. http://dx.doi.org/10.1063/5.0211381
23. Samide A, Iacobescu GE, Tutunaru B, Tigae C, Spînu CI, Oprea B. New Inhibitor Based on Hydrolyzed Keratin Peptides for Stainless Steel Corrosion in Physiological Serum: An Electrochemical and Thermodynamic Study. Polymers. 2024;16(5):669.
https://doi.org/10.3390/polym16050669
24. Nandiyanto ABD, Hofifah SN, Inayah HT, Putri SR, Apriliani SS, Anggraeni S, et al. Adsorption isotherm of carbon microparticles prepared from pumpkin (Cucurbita maxima) seeds for dye removal. Iraqi Journal of Science. 2021:1404-14.