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Molecular and Electrochemical Mechanisms of Metal Corrosion

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Physical Chemistry and Chemical Physics".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 458

Special Issue Editor


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Guest Editor
Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy
Interests: corrosion; electrochemical studies; additive manufacturing; characterization

Special Issue Information

Dear Colleagues,

Corrosion remains a critical issue in metal-based systems, impacting structural integrity, performance, and longevity across numerous industrial applications. Recent advances in surface science, molecular-level characterization, and electrochemical analysis have deepened our understanding of corrosion initiation and progression. This Special Issue aims to gather contributions that explore the molecular and electrochemical mechanisms underpinning metal corrosion, with emphasis on interfacial processes, passivation, localized corrosion phenomena, and the role of environmental factors. Topics of interest include, but are not limited to, corrosion inhibition at the molecular level, advanced surface modification strategies, in situ and operando studies, and multi-scale modeling of corrosion behavior. Both experimental and theoretical studies are welcome. By bridging molecular insights with practical corrosion science, this issue seeks to promote innovative approaches toward corrosion prevention and control.

Dr. Mehrdad Faraji
Guest Editor

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Keywords

  • metal corrosion
  • molecular mechanisms
  • electrochemistry
  • surface chemistry
  • corrosion inhibitors
  • passivation

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Published Papers (1 paper)

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Research

27 pages, 3066 KB  
Article
Multi-Modal Adsorption and Synergistic Corrosion Inhibition of a Collagen–BMIM·Br Composite on Mild Steel
by Michael John Klink
Int. J. Mol. Sci. 2025, 26(23), 11355; https://doi.org/10.3390/ijms262311355 - 24 Nov 2025
Viewed by 263
Abstract
The widespread corrosion of mild steel in acidic environments presents a persistent and economically significant challenge across multiple industries. Compounding this issue, many conventional corrosion inhibitors carry substantial environmental and toxicological hazards, underscoring the critical need for developing high-performance, environmentally benign alternatives. This [...] Read more.
The widespread corrosion of mild steel in acidic environments presents a persistent and economically significant challenge across multiple industries. Compounding this issue, many conventional corrosion inhibitors carry substantial environmental and toxicological hazards, underscoring the critical need for developing high-performance, environmentally benign alternatives. This study investigates a corrosion inhibitor composite comprising collagen and 1-butyl-3-methylimidazolium bromide (BMIM·Br) for mild steel in 1.5 M HCl. Gravimetric analysis demonstrated exceptional inhibition efficiency (>95%) across a temperature range of 30–60 °C, with remarkable thermal stability evidenced by less than a 1% decrease at elevated temperatures. The adsorption process was found to be spontaneous and followed the Langmuir isotherm, with thermodynamic parameters (ΔG°ads ≈ −17 to −19 kJ/mol) indicating a mixed physisorption–chemisorption mechanism. FTIR and XRD analyses confirmed molecular-level interactions and the formation of a more amorphous composite structure. A multi-modal adsorption mechanism, supported by Density Functional Theory (DFT) insights, is proposed, elucidating the synergy through ionic bridging and the formation of a co-accreted polymeric film. These findings establish the collagen–BMIM·Br composite as a highly effective, stable, and sustainable corrosion inhibitor for demanding industrial applications in aggressive acidic environments. Full article
(This article belongs to the Special Issue Molecular and Electrochemical Mechanisms of Metal Corrosion)
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