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Effect of synthesis conditions on the corrosion inhibition properties of carbon dots.

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Title: Effect of synthesis conditions on the corrosion inhibition properties of carbon dots.
Authors: Aslam, Ruby1,2 (AUTHOR), Solomon, Moses M.1,3,4 (AUTHOR) moses.solomon@nottingham.edu.cn, Qihui, Wang1 (AUTHOR), Sun, Yi1 (AUTHOR), Amune, Ubani O.3,4 (AUTHOR), Umoren, Saviour A.5,6 (AUTHOR), Yan, Zhitao1,7 (AUTHOR) yanzhitao@cqu.edu.cn
Source: Diamond & Related Materials. Nov2025:Part B, Vol. 159, pN.PAG-N.PAG. 1p.
Subjects: Inhibition (Chemistry), Carbon nanodots, Doping agents (Chemistry), Dialysis (Chemistry), Corrosion prevention
Abstract: Nitrogen and sulfur co-doped carbon dots (N, S-CDs) are promising corrosion inhibitors, typically synthesized hydrothermally. This study investigates how synthesis conditions, namely reaction time (4–24 h), reaction temperature (170-230 °C), and dialysis duration (12–48 h) affect N, S-CD properties. Nine samples labelled CD-1 (190 °C, 4 h, 24 h dialysis), CD-2 (190 °C, 6 h, 24 h dialysis), CD-3 (190 °C, 12 h, 24 h dialysis), CD-4 (190 °C, 24 h, 24 h dialysis), CD-5 (170 °C, 6 h, 24 h dialysis), CD-6 (210 °C, 6 h, 24 h dialysis), CD-7 (230 °C, 6 h, 24 h dialysis), CD-8 (190 °C, 6 h, 12 h dialysis), and CD-9 (190 °C, 6 h, 48 h dialysis) are synthesized. Results show optimal conditions maximizing chromophore yield and minimizing particle size distribution were a 6 h reaction, 190 °C temperature, and dialysis ≥24 h. Particle size increased with longer reaction times and higher temperatures. Crucially, inhibition efficiency (η) in 1 M HCl at 150 mg/L directly correlated with these properties, yielding this ranking: CD-2 (94 %) > CD-1 (92 %) > CD-4 (89 %) ≈ CD-3/CD-9 (88 %) > CD-6 (87 %) > CD-7 (82 %) > CD-5 (64 %) > CD-8 (57 %). This confirms that synthesis conditions critically determine CD properties and performance. CD-2, the superior inhibitor, demonstrates temperature and immersion time dependence: η decreased with rising electrolyte temperature but improved with prolonged immersion, suggesting gradual film stabilization. [Display omitted] • The influence of synthesis conditions on N, S-doped carbon dots is studied. • Optimal conditions are 6 h reaction time at 190 °C with dialysis ≥24 h. • Inhibitor efficiency is directly linked to synthesis parameters. • CD-2 sample obtained at optimal conditions shows the highest corrosion inhibition (94 %). • CD-2 efficiency decreases with temperature but improves over time. [ABSTRACT FROM AUTHOR]
Copyright of Diamond & Related Materials 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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 188830331
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Effect of synthesis conditions on the corrosion inhibition properties of carbon dots.
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  Data: <searchLink fieldCode="AR" term="%22Aslam%2C+Ruby%22">Aslam, Ruby</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Solomon%2C+Moses+M%2E%22">Solomon, Moses M.</searchLink><relatesTo>1,3,4</relatesTo> (AUTHOR)<i> moses.solomon@nottingham.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Qihui%2C+Wang%22">Qihui, Wang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Yi%22">Sun, Yi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Amune%2C+Ubani+O%2E%22">Amune, Ubani O.</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Umoren%2C+Saviour+A%2E%22">Umoren, Saviour A.</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yan%2C+Zhitao%22">Yan, Zhitao</searchLink><relatesTo>1,7</relatesTo> (AUTHOR)<i> yanzhitao@cqu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Diamond+%26+Related+Materials%22">Diamond & Related Materials</searchLink>. Nov2025:Part B, Vol. 159, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Inhibition+%28Chemistry%29%22">Inhibition (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+nanodots%22">Carbon nanodots</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Dialysis+%28Chemistry%29%22">Dialysis (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+prevention%22">Corrosion prevention</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Nitrogen and sulfur co-doped carbon dots (N, S-CDs) are promising corrosion inhibitors, typically synthesized hydrothermally. This study investigates how synthesis conditions, namely reaction time (4–24 h), reaction temperature (170-230 °C), and dialysis duration (12–48 h) affect N, S-CD properties. Nine samples labelled CD-1 (190 °C, 4 h, 24 h dialysis), CD-2 (190 °C, 6 h, 24 h dialysis), CD-3 (190 °C, 12 h, 24 h dialysis), CD-4 (190 °C, 24 h, 24 h dialysis), CD-5 (170 °C, 6 h, 24 h dialysis), CD-6 (210 °C, 6 h, 24 h dialysis), CD-7 (230 °C, 6 h, 24 h dialysis), CD-8 (190 °C, 6 h, 12 h dialysis), and CD-9 (190 °C, 6 h, 48 h dialysis) are synthesized. Results show optimal conditions maximizing chromophore yield and minimizing particle size distribution were a 6 h reaction, 190 °C temperature, and dialysis ≥24 h. Particle size increased with longer reaction times and higher temperatures. Crucially, inhibition efficiency (η) in 1 M HCl at 150 mg/L directly correlated with these properties, yielding this ranking: CD-2 (94 %) > CD-1 (92 %) > CD-4 (89 %) ≈ CD-3/CD-9 (88 %) > CD-6 (87 %) > CD-7 (82 %) > CD-5 (64 %) > CD-8 (57 %). This confirms that synthesis conditions critically determine CD properties and performance. CD-2, the superior inhibitor, demonstrates temperature and immersion time dependence: η decreased with rising electrolyte temperature but improved with prolonged immersion, suggesting gradual film stabilization. [Display omitted] • The influence of synthesis conditions on N, S-doped carbon dots is studied. • Optimal conditions are 6 h reaction time at 190 °C with dialysis ≥24 h. • Inhibitor efficiency is directly linked to synthesis parameters. • CD-2 sample obtained at optimal conditions shows the highest corrosion inhibition (94 %). • CD-2 efficiency decreases with temperature but improves over time. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Diamond & Related Materials 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.diamond.2025.112932
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Inhibition (Chemistry)
        Type: general
      – SubjectFull: Carbon nanodots
        Type: general
      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Dialysis (Chemistry)
        Type: general
      – SubjectFull: Corrosion prevention
        Type: general
    Titles:
      – TitleFull: Effect of synthesis conditions on the corrosion inhibition properties of carbon dots.
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            NameFull: Aslam, Ruby
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            NameFull: Solomon, Moses M.
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            – D: 05
              M: 11
              Text: Nov2025:Part B
              Type: published
              Y: 2025
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              Value: 159
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