Effects of Surfactants on the Corrosion Behavior of Aluminum Alloy in Graphene Nanofluid

Adeola Borode, Noor Ahmed, Peter Olubambi

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

In this study, the corrosion performance of aluminum alloy was investigated in graphene nanoplatelet (GNP) nanofluids prepared with different surfactants. The surfactants include sodium dodecylbenzene sulfonate (SDBS), sodium dodecyl sulfate (SDS), Tween 80, and Gum Arabic (GA). The corrosion properties of the alloy in the different GNP nanofluids were evaluated using potentiodynamic polarization tests at room temperature. The surface morphology of the aluminum alloy was analyzed using a scanning electron microscope coupled with an electron dispersive spectroscopy detector. The experimental results revealed that the addition of surfactants enhances the resistance of the aluminum alloy to corrosion in the nanofluid. This was ascribed to the adsorption of surfactants on the surface of the alloy to form a protective film layer, which reduces moisture permeability and enhances corrosion inhibition. The addition of GA was noted to exhibit the highest inhibition efficiency. This was followed by Tween 80, SDS, and SDBS, which contributes the least inhibition. XRD post-corrosion analysis also reveals the presence of aluminum oxide and aluminum hydroxide phases on the surface of electrodes immersed in all the different GNP nanofluids.

Original languageEnglish
Title of host publicationSolid State Phenomena
PublisherTrans Tech Publications Ltd
Pages35-48
Number of pages14
DOIs
Publication statusPublished - 2024

Publication series

NameSolid State Phenomena
Volume355
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Keywords

  • Aluminum alloy
  • Corrosion
  • Graphene nanoplatelet
  • Nanofluid
  • potentiodynamic polarization
  • Surfactants

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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