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Recent Advancements of Corrosion Inhibitors Using Graphene Oxide-Based Nanomaterial

Picture for Recent Advancements of Corrosion Inhibitors Using Graphene Oxide-Based Nanomaterial
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The corrosion is a spontaneous chemical reaction connected to heat exchangers and pipelines that degrades the strength and quality of utilized steel. The aggressive environment, which is ongoing, intense, and frequently difficult to totally prevent, is the key factor contributing to the metal's deterioration. Additionally, it demonstrates a serious economic problem that causes industrial operational assets to require expensive repairs, ruining the public space.

Product Number: 51323-19268-SG
Author: Bader Alharbi, Norah Aljeaban, Ahmed Busaleh, Tawfik A. Saleh
Publication Date: 2023
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$20.00

Corrosion inhibitors (CI) have been widely used to protect steel against different kinds of corrosive environments such as acids, brines, carbon dioxide, etc. There are several publications in the literature that detail the synthesis and evaluation of graphene-based CI with variable inhibition rates. In this paper, the recent development of corrosion inhibitors reported in the literature as well as newly developed corrosion inhibitors will be discussed.
The performance of different graphene oxide-based corrosion inhibitors has been investigated over a wide range of parameters. In presence of low CI concentrations i.e. 5 ppm, the corrosion inhibition efficiency was found to be more than 80% in presence of 15% HCl at 25°C. The inhibition efficiency decreased significantly with increasing the temperature.
Also, the preparation of graphene oxide-based nanomaterials from graphite was detailed in this study and the performance of these materials was evaluated as corrosion inhibitors in presence of different acid systems i.e. hydrochloric acid and organic acids. The synthesized materials were characterized using Transmission Electron Microscopy (TEM).


As expected, the inhibition efficiency of the tested CI was at high temperatures due to the low corrosion rate at such conditions; however, as the temperature increased the performance decreased to a different extent. At low inhibitor concentrations i.e. 300 ppm, the inhibition efficiency was more than 90%. The findings of this study will lead to further development of CI with improved performance in harsh conditions.

Corrosion inhibitors (CI) have been widely used to protect steel against different kinds of corrosive environments such as acids, brines, carbon dioxide, etc. There are several publications in the literature that detail the synthesis and evaluation of graphene-based CI with variable inhibition rates. In this paper, the recent development of corrosion inhibitors reported in the literature as well as newly developed corrosion inhibitors will be discussed.
The performance of different graphene oxide-based corrosion inhibitors has been investigated over a wide range of parameters. In presence of low CI concentrations i.e. 5 ppm, the corrosion inhibition efficiency was found to be more than 80% in presence of 15% HCl at 25°C. The inhibition efficiency decreased significantly with increasing the temperature.
Also, the preparation of graphene oxide-based nanomaterials from graphite was detailed in this study and the performance of these materials was evaluated as corrosion inhibitors in presence of different acid systems i.e. hydrochloric acid and organic acids. The synthesized materials were characterized using Transmission Electron Microscopy (TEM).


As expected, the inhibition efficiency of the tested CI was at high temperatures due to the low corrosion rate at such conditions; however, as the temperature increased the performance decreased to a different extent. At low inhibitor concentrations i.e. 300 ppm, the inhibition efficiency was more than 90%. The findings of this study will lead to further development of CI with improved performance in harsh conditions.

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Applied Graphene Materials produces a number of GNP dispersions enabling properties such as electrical/thermal conductivity mechanical properties gas permeability and barrier type to be achievedAnti-corrosive pigments have come under environmental pressure. The challenge is to develop anti-corrosive systems with performance equal to that of current anti-corrosive pigments. Prior work has demonstrated that very small additions of GNPs decreased water vapour transmission rates and extended time to initial corrosion and has been explained by the tortuous pathway created by the addition of GNPs to a host matrix. It has also been postulated that there is an anodic/cathodic process taking place in conjunction with typical active anti-corrosive pigments.This work is benchmarking GNPs against and in combination with commercially available anti-corrosive pigments via electrochemical corrosion and mechanical testing. We seek to characterise the mechanisms by which GNPs work as anti-corrosive pigments and investigate synergistic effects which will allow improvements in coatings anti-corrosive performance. Electrochemical AC impedance Spectroscopy (EIS) corrosion potential (OCP) measurements and potentiodynamic (PD) measurements has been used to probe the properties of GNP-epoxy coatings. In their simplest form values of impedance provide useful information concerning the passive barrier properties of a coating.
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