A novel technology for sequestration of corrosive ions in comparison with benzotriazole: a review
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 7 August 2024
Issue publication date: 30 October 2024
Abstract
Purpose
Hexavalent chromium has been a benchmark corrosion inhibitor before it was phased out because of its carcinogenic properties. However, because it was phased out, many alternative corrosion inhibitors have been introduced but failed to meet the performance of this benchmark inhibitor. Consequently, benzotriazole (BTA) was reported to exhibit chromate-like inhibition performance. Subsequently, Intelli-ion was reported by researchers to exhibit chromate-like performance also with claims of being a unique alternative. This paper aims to review the inhibition performance of these two alternatives. Above all, promotes the unique inhibition performance of Intelli-ion that makes it suitable for application in many sectors.
Design/methodology/approach
In this paper, the corrosion inhibition performances of BTA and Intelli-ion were compared systematically by reviewing some related literatures based on the opinion of the authors.
Findings
Different methodologies for measuring the inhibition performance of BTA showed that it’s an inhibitor of choice. However, the cut edge corrosion performance of Intelli-ion and BTA corrosion inhibitors on galvanized steel of 55% Wt.% Al, 44% Wt.% Zn and 1% Wt.% Si in 5 Wt.% NaCl solution was compared when subjected to scanning vibrating electrode technique (SVET) for 24 h. The results showed faint blue-colored region depicting negative cathodic current density for the Intelli-ion while there was a high-intensity of red-colored region depicting a positive anodic current density for BTA. In other words, the Intelli-ion inhibitor had a better overall cut-edge corrosion inhibition performance than the BTA inhibitor.
Originality/value
This paper compares and further, summarizes the corrosion inhibition performance of Intelli-ion and BTA by evaluating SVET results from the literature. In addition, it serves as an overview and reference for the unique inhibition performance of Intelli-ion when applied in field applications.
Keywords
Acknowledgements
The authors are grateful for the research support from the Africa Centre of Excellence in Future Energies and Electrochemical Systems (ACE-FUELS), the Federal University of Technology Owerri (FUTO), Nigeria [NUC/ES/507/1/304]. Likewise, the authors accord credit to the Royal Society of Chemistry for express permission for the reuse of their piece of material in this article.
Conflict of interest: The authors declare that there are no competing interests whatsoever, be it commercial, financial, or otherwise regarding the publication of this article. The review is a product of the available literature as expressed in the paper and serves as unbiased views in the opinion of the authors.
Citation
Idema, O.F., Abdulwahab, M., Arukalam, I.O., Ekeke, I., Njoku, C.N., Anyiam, C., Onyeachu, B. and Oguzie, E.E. (2024), "A novel technology for sequestration of corrosive ions in comparison with benzotriazole: a review", Anti-Corrosion Methods and Materials, Vol. 71 No. 6, pp. 697-707. https://doi.org/10.1108/ACMM-04-2024-3009
Publisher
:Emerald Publishing Limited
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