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Active-Polyphenolic-Compounds-Rich Green Inhibitor For The Surface Protection Of Low Carbon Steel In Acidic Medium

Author

Listed:
  • ILL-MIN CHUNG

    (Department of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea)

  • VENKATESAN HEMAPRIYA

    (#x2020;Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore – 641 004, Tamil Nadu, India)

  • PONNUSAMY KANCHANA

    (#x2020;Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore – 641 004, Tamil Nadu, India)

  • NATARAJAN ARUNADEVI

    (#x2020;Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore – 641 004, Tamil Nadu, India)

  • SUBRAMANIAN CHITRA

    (#x2020;Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore – 641 004, Tamil Nadu, India)

  • SEUNG-HYUN KIM

    (Department of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea)

  • MAYAKRISHNAN PRABAKARAN

    (Department of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea)

Abstract

Eco-friendly biodegradable Rhododendron schlippenbachii (R. schlippenbachii) green inhibitors, R. schlippenbachii methanolic (RSMeOH) extract, which can effectively reduce low carbon steel corrosion rate, were investigated using weight-loss and electrochemical (electrochemical impedance spectroscopy) techniques. The inhibitors exhibited higher efficiency by retarding the corrosion process in 1M H2SO4 and the inhibition efficiency is found to be concentration dependent. The reactivity of the predominant phytochemical components of the extract are analyzed. The adsorption of inhibitors on low carbon steel is followed the Langmuir adsorption. The protective inhibitor film formed on the metal surface was confirmed by SEM and AFM techniques.

Suggested Citation

  • Ill-Min Chung & Venkatesan Hemapriya & Ponnusamy Kanchana & Natarajan Arunadevi & Subramanian Chitra & Seung-Hyun Kim & Mayakrishnan Prabakaran, 2020. "Active-Polyphenolic-Compounds-Rich Green Inhibitor For The Surface Protection Of Low Carbon Steel In Acidic Medium," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 27(06), pages 1-13, June.
    • Handle: RePEc:wsi:srlxxx:v:27:y:2020:i:06:n:s0218625x19501543
    DOI: 10.1142/S0218625X19501543
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