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Influence of solvent polarity on the self-assembly and corrosion resistance of 8-hydroxyquinoline@MgO hybrid coatings.

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Title: Influence of solvent polarity on the self-assembly and corrosion resistance of 8-hydroxyquinoline@MgO hybrid coatings.
Authors: Sheng, Yujun1 (AUTHOR), Hazmatulhaq, Farah2 (AUTHOR), Assfour, Bassem3 (AUTHOR), Allaf, Abdul Wahab3,4 (AUTHOR), Al Hamoud, Lubna5 (AUTHOR), Al Zoubi, Wail1,2 (AUTHOR) wailalzoubi@ynu.ac.kr
Source: Materials Chemistry & Physics. Mar2026, Vol. 351, pN.PAG-N.PAG. 1p.
Subjects: Polar solvents, Corrosion resistance, Morphology, Electrochemical analysis, Hydrogen bonding, Hydroxyquinoline, Surface coatings, Molecular self-assembly
Abstract: In this study, we investigated the ordered self-assembly of N-heterocyclic donors (8-hydroxyquinoline (8-HQ)) on porous material surfaces (MgO-MgAl 2 O 4) to fabricate flower-like structures. Further, we examined the effect of the solvent (ethanol, methanol, and water) on the self-ordered assembly of these molecules. The 8-HQ molecules exhibited different morphology as they grew on the porous inorganic surface, which were attributed to the distinct polarity that influences the coordination between 8-HQ and metal ions dissolved from the inorganic layer using the solvent. The electrochemical performance was improved significantly with the addition of an organic layer on the porous inorganic surface, as confirmed through an electrochemical analysis. And Ethanol exhibited the best promotion with respect to the formation of a compact and well-organized assemblies flower structure, facilitated by the strongest inter-molecular hydrogen bonding and л-л interactions. The results showed that the ethanol-derived hybrid coating showed the lowest corrosion rate with a value of 2.174 × 10−4 mpy, and highest R value of 4.96 × 105 Ω cm2, demonstrating superior anti-corrosion performance over Mg substrate under aggressive environment. These results highlight solvent polarity as a powerful strategy for directing supra-molecular assembly and achieving substantial improvements in corrosion protection. • Fabrication flower-like structures in the solvent (ethanol, methanol, and water). • N-heterocyclic molecules exhibited different morphologies. • Variations in the polar solvent influenced the growth and stability of the self-organization. • This enhanced stability was attributed to inter and intra-molecular hydrogen bonds. [ABSTRACT FROM AUTHOR]
Copyright of Materials Chemistry & Physics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 190715804
AccessLevel: 6
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PubTypeId: academicJournal
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  Label: Title
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  Data: Influence of solvent polarity on the self-assembly and corrosion resistance of 8-hydroxyquinoline@MgO hybrid coatings.
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  Data: <searchLink fieldCode="AR" term="%22Sheng%2C+Yujun%22">Sheng, Yujun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hazmatulhaq%2C+Farah%22">Hazmatulhaq, Farah</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Assfour%2C+Bassem%22">Assfour, Bassem</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Allaf%2C+Abdul+Wahab%22">Allaf, Abdul Wahab</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Al+Hamoud%2C+Lubna%22">Al Hamoud, Lubna</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Al+Zoubi%2C+Wail%22">Al Zoubi, Wail</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wailalzoubi@ynu.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Materials+Chemistry+%26+Physics%22">Materials Chemistry & Physics</searchLink>. Mar2026, Vol. 351, pN.PAG-N.PAG. 1p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Polar+solvents%22">Polar solvents</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+resistance%22">Corrosion resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Morphology%22">Morphology</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemical+analysis%22">Electrochemical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+bonding%22">Hydrogen bonding</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroxyquinoline%22">Hydroxyquinoline</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+self-assembly%22">Molecular self-assembly</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, we investigated the ordered self-assembly of N-heterocyclic donors (8-hydroxyquinoline (8-HQ)) on porous material surfaces (MgO-MgAl 2 O 4) to fabricate flower-like structures. Further, we examined the effect of the solvent (ethanol, methanol, and water) on the self-ordered assembly of these molecules. The 8-HQ molecules exhibited different morphology as they grew on the porous inorganic surface, which were attributed to the distinct polarity that influences the coordination between 8-HQ and metal ions dissolved from the inorganic layer using the solvent. The electrochemical performance was improved significantly with the addition of an organic layer on the porous inorganic surface, as confirmed through an electrochemical analysis. And Ethanol exhibited the best promotion with respect to the formation of a compact and well-organized assemblies flower structure, facilitated by the strongest inter-molecular hydrogen bonding and л-л interactions. The results showed that the ethanol-derived hybrid coating showed the lowest corrosion rate with a value of 2.174 × 10−4 mpy, and highest R value of 4.96 × 105 Ω cm2, demonstrating superior anti-corrosion performance over Mg substrate under aggressive environment. These results highlight solvent polarity as a powerful strategy for directing supra-molecular assembly and achieving substantial improvements in corrosion protection. • Fabrication flower-like structures in the solvent (ethanol, methanol, and water). • N-heterocyclic molecules exhibited different morphologies. • Variations in the polar solvent influenced the growth and stability of the self-organization. • This enhanced stability was attributed to inter and intra-molecular hydrogen bonds. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials Chemistry & Physics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.matchemphys.2025.131971
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Polar solvents
        Type: general
      – SubjectFull: Corrosion resistance
        Type: general
      – SubjectFull: Morphology
        Type: general
      – SubjectFull: Electrochemical analysis
        Type: general
      – SubjectFull: Hydrogen bonding
        Type: general
      – SubjectFull: Hydroxyquinoline
        Type: general
      – SubjectFull: Surface coatings
        Type: general
      – SubjectFull: Molecular self-assembly
        Type: general
    Titles:
      – TitleFull: Influence of solvent polarity on the self-assembly and corrosion resistance of 8-hydroxyquinoline@MgO hybrid coatings.
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            NameFull: Sheng, Yujun
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            NameFull: Hazmatulhaq, Farah
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            NameFull: Assfour, Bassem
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            NameFull: Allaf, Abdul Wahab
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 351
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