l-Tyrosine-Derived Nitrogen-Doped Carbon Dots Synthesized via a Hydrothermal Approach for Corrosion Mitigation of Mild Steel in 15% Hydrochloric Acid Solution.

Authors

Sonia Kumari, Navjot Sandhu, Vandana Saraswat, Tarun Kanti Sarkar

Published in

Langmuir : the ACS journal of surfaces and colloids. May 05, 2025. Epub May 05, 2025.

Abstract

l-Tyrosine-based eco-friendly nitrogen-doped carbon dots have been synthesized using citric acid and isoniazid as precursors along with l-tyrosine via a facile one-pot hydrothermal approach for the corrosion mitigation of mild steel (MS) in HCl solution (15%). The authenticity of the synthesized carbon dots has been established using various spectroscopic techniques such as X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), and Fourier transform infrared (FT-IR) spectroscopy. The inhibition behavior was studied using gravimetric analysis, electrochemical measurements, and surface analysis. The potentiodynamic polarization revealed that the N-doped carbon dots act as a mixed-type corrosion inhibitor; that is, it can act as both a cathodic as well as an anodic inhibitor, with the corrosion efficiency of 99.3% at the concentration of 150 ppm. N-CDs protect the metal surface by forming a layer that is particularly physisorbed as confirmed by ΔG_abs values.

PMID:
40325347
Bibliographic data and abstract were imported from PubMed on 06 May 2025.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.