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  • Green inhibitors for steel corrosion in acidic environment: state of art

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    Accepted Manuscript (AM)
    Author(s)
    Wei, H
    Heidarshenas, B
    Zhou, L
    Hussain, G
    Li, Q
    Ostrikov, K
    Griffith University Author(s)
    Li, Qin
    Year published
    2020
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    Abstract
    Driven by the increasingly overwhelming environmental issues caused by the widespread application of traditional toxic corrosion inhibitors, eco-friendly inhibitors have attracted strong attention over the past decades. Green inhibitors are produced from cheap and renewable sources and simultaneously offer high inhibition efficiency and low or even zero environmental impact. Herewith, we review recent advances in the field and introduce state-of-the-art methods to validate the inhibitory effects on steel corrosion. Advanced techniques such as weight loss, electrochemical impedance, and potentiodynamic polarization techniques ...
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    Driven by the increasingly overwhelming environmental issues caused by the widespread application of traditional toxic corrosion inhibitors, eco-friendly inhibitors have attracted strong attention over the past decades. Green inhibitors are produced from cheap and renewable sources and simultaneously offer high inhibition efficiency and low or even zero environmental impact. Herewith, we review recent advances in the field and introduce state-of-the-art methods to validate the inhibitory effects on steel corrosion. Advanced techniques such as weight loss, electrochemical impedance, and potentiodynamic polarization techniques provide ample evidence that green inhibitors are very effective in retarding steel corrosion. We critically examine the mechanisms of corrosion inhibition and relate to the available experimental data. The abundance of π-electrons of multiple bonds and heteroatoms in the form of polar functional groups leads to the active adsorption of the inhibitor’s molecules on the steel surface. This article further discusses the adsorption and inhibition mechanisms and the efficiencies of various groups (organic and inorganic) of green corrosion inhibitors for steels in aggressive acid environments, in particular, hydrochloric (HCl) and sulfuric (H2SO4) acids. The future prospects in this multidisciplinary field are formulated and associated with the global challenges of clean energy and manufacturing.
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    Journal Title
    Materials Today Sustainability
    Volume
    10
    DOI
    https://doi.org/10.1016/j.mtsust.2020.100044
    Copyright Statement
    © 2020 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Environmental engineering
    Publication URI
    http://hdl.handle.net/10072/400773
    Collection
    • Journal articles

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