European Journal of Chemistry

Corrosion inhibition performance of imibenconazole for mild steel in sulfuric acid: A comprehensive investigation

Article Sidebar

COVERJUN2026
PDF
Published: Jun 30, 2026
DOI: https://doi.org/10.5155/eurjchem.17.2.109-117.2731
Keywords:
Mild steel, Adsorption, Sulfuric acid, Imibenconazole, Electrochemical analysis
Section
Research Article
Issue
Vol. 17 No. 2 (2026): June 2026
Dates
Received 2025-12-01
Accepted 2026-04-10
Published 2026-06-30
Crossmark


Main Article Content

Nayana Kudluru Onkarappa
Department of Chemistry & Research Centre, Faculty of Nagarathnamma Meda Kasturiranga Rashtriya Vidyalaya College, Bangalore University, Bengaluru-560041, India
https://orcid.org/0000-0002-5955-6340
Jeevan Chakravarthy Arakalagudu Satyanarayana
Department of Chemistry, Faculty of Bhusanayana Mukundadas Sreenivasaiah Institute of Technology & Management, Visvesvaraya Technological University, Bengaluru-560113, India
https://orcid.org/0000-0003-0613-2525
Prashanth Shivappa Adarakatti
Department of Chemistry, Faculty of Shri Vijay Mahantesh Arts, Science and Commerce College, Ilkal- 587125, India
https://orcid.org/0000-0002-9049-4862

Abstract

In this work, the efficacy of imibenconazole (IB) as a new mild steel corrosion inhibitor in 1 N sulfuric acid is examined. With 95.4-96.6% inhibition at an ideal dose of 500 µM, weight loss measurements show strong inhibitory efficiency. The formation of a protective coating by imibenconazole on the steel surface is demonstrated by scanning electron microscopy (SEM) photographs. Improvements in charge transfer resistance (Rct), a shift in Tafel lines to higher potentials, and a drop-in double-layer capacitance (Cdl) are indicative of improved corrosion resistance as measured by electrochemical methods. The inhibitor’s adsorption aligns with the Langmuir isotherm, and the values of ΔG°ads (25-30 kJ/mol) indicate a combined physisorption and chemisorption mode of adsorption. Reliable long-term corrosion prevention is ensured by its durable protective action up to 120 h. Due to its adaptability, the inhibitor can be applied by coatings, injections, and immersions, making it suitable for a range of situations. While stressing the need for more research to examine the applicability of imibenconazole in various materials and situations, the study offers a strong foundation for the adoption of imibenconazole as an efficient corrosion inhibitor. To guarantee long-term protection and effectiveness, routine maintenance and observation are recommended.


icon graph This Abstract was viewed 5 times | icon graph Article PDF downloaded 1 times

How to Cite
(1)
Onkarappa, N. K.; Satyanarayana, J. C. A.; Adarakatti, P. S. Corrosion Inhibition Performance of Imibenconazole for Mild Steel in Sulfuric Acid: A Comprehensive Investigation. Eur. J. Chem. 2026, 17, 109-117.

Article Details

Share
Links for Article


Crossref - Scopus - Google - European PMC
Crossref
Scopus
Google Scholar
Europe PMC
References

[1]. Ahamad, I.; Prasad, R.; Quraishi, M. Thermodynamic, electrochemical and quantum chemical investigation of some Schiff bases as corrosion inhibitors for mild steel in hydrochloric acid solutions. Corros. Sci. 2010, 52 (3), 933-942.
https://doi.org/10.1016/j.corsci.2009.11.016

[2]. Singh, P.; Ebenso, E. E.; Olasunkanmi, L. O.; Obot, I. B.; Quraishi, M. A. Electrochemical, theoretical, and surface morphological studies of corrosion inhibition effect of green naphthyridine derivatives on mild steel in hydrochloric acid. J. Phys. Chem. C Nanomater. Interfaces 2016, 120, 3408-3419.
https://doi.org/10.1021/acs.jpcc.5b11901

[3]. Yilmaz, N.; Fitoz, A.; Ergun, U.; Emregül, K. C. A combined electrochemical and theoretical study into the effect of 2-((thiazole-2-ylimino)methyl)phenol as a corrosion inhibitor for mild steel in a highly acidic environment. Corros. Sci. 2016, 111, 110-120.
https://doi.org/10.1016/j.corsci.2016.05.002

[4]. Cui, M.; Ren, S.; Xue, Q.; Zhao, H.; Wang, L. Carbon dots as new eco-friendly and effective corrosion inhibitor. J. Alloys Comp 2017, 726, 680-692.
https://doi.org/10.1016/j.jallcom.2017.08.027

[5]. Daoud, D.; Douadi, T.; Hamani, H.; Chafaa, S.; Al-Noaimi, M. Corrosion inhibition of mild steel by two new S-heterocyclic compounds in 1 M HCl: Experimental and computational study. Corros. Sci. 2015, 94, 21-37.
https://doi.org/10.1016/j.corsci.2015.01.025

[6]. Singh, A. K.; Thakur, S.; Pani, B.; Ebenso, E. E.; Quraishi, M. A.; Pandey, A. K. 2-Hydroxy-N′-((Thiophene-2-yl)methylene)benzohydrazide: Ultrasound-Assisted Synthesis and Corrosion Inhibition Study. ACS. Omega 2018, 3 (4), 4695-4705.
https://doi.org/10.1021/acsomega.8b00003

[7]. Chaitra, T. K.; Mohana, K. N.; Tandon, H. C. Thermodynamic, electrochemical and quantum chemical evaluation of some triazole Schiff bases as mild steel corrosion inhibitors in acid media. J. Mol. Liq. 2015, 211, 1026-1038.
https://doi.org/10.1016/j.molliq.2015.08.031

[8]. ElBelghiti, M.; Karzazi, Y.; Dafali, A.; Hammouti, B.; Bentiss, F.; Obot, I.; Bahadur, I.; Ebenso, E. Experimental, quantum chemical and Monte Carlo simulation studies of 3,5-disubstituted-4-amino-1,2,4-triazoles as corrosion inhibitors on mild steel in acidic medium. J. Mol. Liq. 2016, 218, 281-293.
https://doi.org/10.1016/j.molliq.2016.01.076

[9]. El-Etre, A.; Abdallah, M.; El-Tantawy, Z. Corrosion inhibition of some metals using lawsonia extract. Corros. Sci. 2005, 47 (2), 385-395.
https://doi.org/10.1016/j.corsci.2004.06.006

[10]. Al-Amiery, A.; Kadhum, A.; Alobaidy, A. H.; Mohamad, A.; Hoon, P. Novel Corrosion Inhibitor for Mild Steel in HCl. Materials 2014, 7 (2), 662-672.
https://doi.org/10.3390/ma7020662

[11]. Bentiss, F.; Lagrenee, M.; Traisnel, M.; Hornez, J. C. The corrosion inhibition of mild steel in acidic media by a new triazole derivative. Corros. Sci. 1999, 41, 789-803.
https://doi.org/10.1016/S0010-938X(98)00153-X

[12]. Oparaodu, K. O.; Okpokwasili, G. Comparison of percentage weight loss and corrosion rate trends in different metal coupons from two soil environments. Int. J. Environ. Bioremediat. Biodegrad. 2014, 2, 243-249. https://pubs.sciepub.com/ijebb/2/5/5/

[13]. Pavithra, M.; Venkatesha, T.; Vathsala, K.; Nayana, K. Synergistic effect of halide ions on improving corrosion inhibition behaviour of benzisothiozole-3-piperizine hydrochloride on mild steel in 0.5M H2SO4 medium. Corros. Sci. 2010, 52 (11), 3811-3819.
https://doi.org/10.1016/j.corsci.2010.07.034

[14]. Loto, R. T. Surface coverage and corrosion inhibition effect of Rosmarinus officinalis and zinc oxide on the electrochemical performance of low carbon steel in dilute acid solutions. Results Phys. 2018, 8, 172-179.
https://doi.org/10.1016/j.rinp.2017.12.003

[15]. Ouakki, M.; Galai, M.; Rbaa, M.; Abousalem, A. S.; Lakhrissi, B.; Touhami, M. E.; Cherkaoui, M. Electrochemical, thermodynamic and theoretical studies of some imidazole derivatives compounds as acid corrosion inhibitors for mild steel. J. Mol. Liq. 2020, 319, 114063.
https://doi.org/10.1016/j.molliq.2020.114063

[16]. Mamudu, U.; Santos, J. H.; Umoren, S. A.; Alnarabiji, M. S.; Lim, R. C. Investigations of corrosion inhibition of ethanolic extract of Dillenia suffruticosa leaves as a green corrosion inhibitor of mild steel in hydrochloric acid medium. Corros. Commun. 2024, 15, 52-62.
https://doi.org/10.1016/j.corcom.2023.10.005

[17]. Mohammed, H. K.; Jafar, S. A.; Humadi, J. I.; Sehgal, S.; Saxena, K. K.; Abdullah, G. H.; Saeed, L. I.; Salman, M. S.; Abdullah, W. S. Investigation of carbon steel corrosion rate in different acidic environments. Materials Today: Proceedings 2023, https://doi.org/10.1016/j.matpr.2023.03.792.
https://doi.org/10.1016/j.matpr.2023.03.792

[18]. Alamiery, A. A.; Wan Isahak, W. N.; Takriff, M. S. Inhibition of Mild Steel Corrosion by 4-benzyl-1-(4-oxo-4-phenylbutanoyl)thiosemicarbazide: Gravimetrical, Adsorption and Theoretical Studies. Lubricants 2021, 9 (9), 93.
https://doi.org/10.3390/lubricants9090093

[19]. Sykes, J. M. Silver Jubilee review 25 years of progress in electrochemical methods. British Corros. J. 1990, 25 (3), 175-183.
https://doi.org/10.1179/000705990798269577

[20]. Konovalova, V. The effect of temperature on the corrosion rate of iron-carbon alloys. Materials Today: Proceedings 2021, 38, 1326-1329.
https://doi.org/10.1016/j.matpr.2020.08.094

[21]. Laurent, C.; Scenini, F.; Monetta, T.; Bellucci, F.; Curioni, M. The contribution of hydrogen evolution processes during corrosion of aluminium and aluminium alloys investigated by potentiodynamic polarisation coupled with real-time hydrogen measurement. NPJ. Mater. Degrad. 2017, 1 (1).
https://doi.org/10.1038/s41529-017-0011-4

[22]. Gürten, A. A.; Keleş, H.; Bayol, E.; Kandemirli, F. The effect of temperature and concentration on the inhibition of acid corrosion of carbon steel by newly synthesized Schiff base. J. Ind. Eng. Chem. 2015, 27, 68-78.
https://doi.org/10.1016/j.jiec.2014.11.046

[23]. Noor, E. A. Temperature effects on the corrosion inhibition of mild steel in acidic solutions by aqueous extract of fenugreek leaves. Int. J. Electrochem. Sci. 2007, 2, 996-1017.
https://doi.org/10.1016/S1452-3981(23)17129-X

[24]. Şahin, M.; Bilgiç, S.; Yılmaz, H. The inhibition effects of some cyclic nitrogen compounds on the corrosion of the steel in NaCl mediums. Appl. Surf. Sci. 2002, 195, 1-7.
https://doi.org/10.1016/S0169-4332(01)00783-8

[25]. Kokalj, A. On the use of the Langmuir and other adsorption isotherms in corrosion inhibition. Corros. Sci. 2023, 217, 111112.
https://doi.org/10.1016/j.corsci.2023.111112

[26]. Temkin, M. I. The kinetics of some industrial heterogeneous catalytic reactions. In Advances in Catalysis; Elsevier, 1979; pp. 173-291.
https://doi.org/10.1016/S0360-0564(08)60135-2

[27]. Frumkin, A. Die Kapillarkurve der höheren Fettsäuren und die Zustandsgleichung der Oberflächenschicht. Z. Phys. Chem. 1925, 116U (1), 466-484.
https://doi.org/10.1515/zpch-1925-11629

[28]. Bockris, J. O.; Reddy, A. K. N.; Gamboa-Adelco, M. E. Modern Electrochemistry 2A: Fundamentals of Electrodics; 2nd ed.; Kluwer Academic/Plenum: New York, NY, 2001.

[29]. Olivares, O.; Likhanova, N.; Gómez, B.; Navarrete, J.; Llanos-Serrano, M.; Arce, E.; Hallen, J. Electrochemical and XPS studies of decylamides of α-amino acids adsorption on carbon steel in acidic environment. Appl. Surf. Sci. 2006, 252 (8), 2894-2909.
https://doi.org/10.1016/j.apsusc.2005.04.040

[30]. Adamu, A. A.; Iyun, O. R.; Habila, J. D. Adsorption and thermodynamic studies of the corrosion Inhibition effect of Desmodium adscendens (Swartz) extract on carbon steel in 2 M HCl. BMC Chem. 2025, 19 (1).
https://doi.org/10.1186/s13065-025-01541-y

[31]. Lin, B.; Shao, J.; Xu, Y.; Lai, Y.; Zhao, Z. Adsorption and corrosion of renewable inhibitor of Pomelo peel extract for mild steel in phosphoric acid solution. Arab. J. Chem. 2021, 14 (5), 103114.
https://doi.org/10.1016/j.arabjc.2021.103114

[32]. Hosseini, M.; Mertens, S. F. L.; Arshadi, M. R. Synergism and antagonism in mild steel corrosion inhibition by sodium dodecylbenzenesulphonate and hexamethylenetetramine. Corros. Sci. 2003, 45, 1473-1489.
https://doi.org/10.1016/S0010-938X(02)00246-9

[33]. Fateh, A.; Aliofkhazraei, M.; Rezvanian, A. Review of corrosive environments for copper and its corrosion inhibitors. Arab. J. Chem. 2020, 13 (1), 481-544.
https://doi.org/10.1016/j.arabjc.2017.05.021

[34]. Li, W.; He, Q.; Zhang, S.; Pei, C.; Hou, B. Some new triazole derivatives as inhibitors for mild steel corrosion in acidic medium. J. Appl. Electrochem. 2007, 38 (3), 289-295.
https://doi.org/10.1007/s10800-007-9437-7

[35]. Bardal, E. Corrosion and Protection; Bardal, E., Ed.; 2004th ed.; Springer: London, England, 2004.
https://doi.org/10.1007/b97510

[36]. Atkins, P.; Overton, T.; Rourke, J.; Weller, M.; Armstrong, F. Shriver and Atkins' inorganic chemistry; 5th ed.; Oxford University Press: London, England, 2009.

[37]. Elgyar, O. A.; Ouf, A.; El-Hossiany, A.; Fouda, A. The inhibition action of Viscum album extract on theCorrosion of carbon steel in hydrochloric acid solution. Biointerface Res. Appl. Chem. 2021, 11, 14344-14358.
https://doi.org/10.33263/BRIAC116.1434414358

[38]. Borowiak-Resterna, A.; Klonowska, K.; Olszanowski, A.; Tomaszewska, M. Photostability of hydrophobic amides of pyridinecarboxylic acid as copper extractants from chloride media. J. Photochem. Photobiol. A: Chem. 2007, 185 (2-3), 181-187.
https://doi.org/10.1016/j.jphotochem.2006.06.002

[39]. Rauța, D. I.; Matei, E.; Avramescu, S. Recent Development of Corrosion Inhibitors: Types, Mechanisms, Electrochemical Behavior, Efficiency, and Environmental Impact. Technologies 2025, 13 (3), 103.
https://doi.org/10.3390/technologies13030103

[40]. Liu, J.; Wang, B.; Chen, T.; Hao, L.; Wu, J.; Liu, C. The Effect of Corrosion Inhibitors on the Corrosion Behavior of Ductile Cast Iron. Metals 2025, 15 (1), 70.
https://doi.org/10.3390/met15010070

[41]. Lee, K.; Sun, S.; Lee, G.; Yoon, G.; Kim, D.; Hwang, J.; Jeong, H.; Song, T.; Paik, U. Galvanic corrosion inhibition from aspect of bonding orbital theory in Cu/Ru barrier CMP. Sci. Rep. 2021, 11 (1).
https://doi.org/10.1038/s41598-021-00689-6

[42]. Boutouil, A.; Laamari, M. R.; Elazhary, I.; Bahsis, L.; Anane, H.; Stiriba, S. Towards a deeper understanding of the inhibition mechanism of a new 1,2,3-triazole derivative for mild steel corrosion in the hydrochloric acid solution using coupled experimental and theoretical methods. Mater. Chem. Phys. 2020, 241, 122420.
https://doi.org/10.1016/j.matchemphys.2019.122420

[43]. Galleguillos Madrid, F. M.; Soliz, A.; Cáceres, L.; Bergendahl, M.; Leiva-Guajardo, S.; Portillo, C.; Olivares, D.; Toro, N.; Jimenez-Arevalo, V.; Páez, M. Green corrosion inhibitors for metal and alloys protection in contact with aqueous saline. Materials (Basel) 2024, 17, 3996.
https://doi.org/10.3390/ma17163996

[44]. Kumar, S. L. A.; Iniyavan, P.; Kumar, M. S.; Sreekanth, A. Corrosion Inhibition Studies of Ecbolium Viride Extracts on Mild Steel in HCl. J. Mater. Environ. Sci. 2012, 3 (3), 461-468.

[45]. Stern, M.; Geaby, A. L. Electrochemical Polarization. J. Electrochem. Soc. 1957, 104 (1), 56.
https://doi.org/10.1149/1.2428496

[46]. Kumar, S. L.; Gopiraman, M.; Kumar, M. S.; Sreekanth, A. 2-Acetylpyridine-N(4)-Morpholine Thiosemicarbazone (HAcpMTSc) as a Corrosion Inhibitor on Mild Steel in HCl. Ind. Eng. Chem. Res. 2011, 50 (13), 7824-7832.
https://doi.org/10.1021/ie200487g

[47]. Abdallah, M. Rhodanine azosulpha drugs as corrosion inhibitors for corrosion of 304 stainless steel in hydrochloric acid solution. Corros. Sci. 2002, 44, 717-728.
https://doi.org/10.1016/S0010-938X(01)00100-7

[48]. Hermas, A.; Morad, M.; Wahdan, M. Effect of PgTPhPBr on the electrochemical and corrosion behaviour of 304 stainless steel in H2SO4 solution. J. Appl. Electrochem. 2004, 34 (1), 95-102.
https://doi.org/10.1023/B:JACH.0000005592.68605.55

[49]. Popova, A.; Raicheva, S.; Sokolova, E.; Christov, M. Frequency Dispersion of the Interfacial Impedance at Mild Steel Corrosion in Acid Media in the Presence of Benzimidazole Derivatives. Langmuir 1996, 12 (8), 2083-2089.
https://doi.org/10.1021/la950148+

[50]. Larabi, L.; Harek, Y.; Traisnel, M.; Mansri, A. Synergistic Influence of Poly(4-Vinylpyridine) and Potassium Iodide on Inhibition of Corrosion of Mild Steel in 1M HCl. J. Appl. Electrochem. 2004, 34 (8), 833-839.
https://doi.org/10.1023/B:JACH.0000035609.09564.e6

Supporting Agencies

The Government Science College, Nrupathunga University, and the Department of Chemistry, Bangalore University, Bengaluru, India.
Most read articles by the same author(s)
TrendMD

Dimensions - Altmetric - scite_ - PlumX

Downloads and views

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...
License Terms
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

License Terms

by-nc

Copyright © 2026 by Authors. This work is published and licensed by Atlanta Publishing House LLC, Atlanta, GA, USA. The full terms of this license are available at https://www.eurjchem.com/index.php/eurjchem/terms and incorporate the Creative Commons Attribution-Non Commercial (CC BY NC) (International, v4.0) License (http://creativecommons.org/licenses/by-nc/4.0). By accessing the work, you hereby accept the Terms. This is an open access article distributed under the terms and conditions of the CC BY NC License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited without any further permission from Atlanta Publishing House LLC (European Journal of Chemistry). No use, distribution, or reproduction is permitted which does not comply with these terms. Permissions for commercial use of this work beyond the scope of the License (https://www.eurjchem.com/index.php/eurjchem/terms) are administered by Atlanta Publishing House LLC (European Journal of Chemistry).