Term of Award

Spring 2019

Degree Name

Master of Science in Applied Physical Science (M.S.)

Document Type and Release Option

Thesis (restricted to Georgia Southern)

Copyright Statement / License for Reuse

Digital Commons@Georgia Southern License

Department

Department of Chemistry

Committee Chair

Shainaz Landge

Committee Member 1

Ji Wu

Committee Member 2

Karelle Aiken

Abstract

Metals are a large part of our daily lives, so studies must be carried out in order to improve the shelf life. Improving the lifetime of the metal is necessary due to the ever increasing uses as a natural resource. This has led to our research into corrosion inhibitors. Triazole heterocycles have been applicable in the world of science. Research into triazole-ion interaction has been carried out in the field of metal corrosion. The synthesized 1,2,3 triazole based core structures were studied for application in steel corrosion inhibition due to their ability to interact with ions. A mixture of 1M HCl and the triazole at increasing concentrations were tested in order to see the effect on resistivity. The impedance was tested on a potentiostat as the concentration was steadily increased. The resistivity of the solution shows there are interactions between the triazole compounds and the electron flow between electrodes. These interactions can be tested using Electrical Impedance Spectroscopy (EIS). The steel plates were submerged in the HCl mixed with different concentrations of the inhibitor in order to view differences in the surface area using Scanning Electron Microscopy (SEM). The Energy Dispersive Spectroscopy (EDS) analyzed the elemental composition of the steel in order to see the changes during the process. The study showed that the resistance to corrosion was greatest at the highest concentration that was tested (50 ppm). The surface area of the submerged steel was less corroded for the 50 ppm which suggests that corrosion slows down with a higher presence of the triazole inhibitor. Electrical Impedance Spectroscopy (EIS), Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscopy (SEM) were used to characterize each triazole of interest.

Research Data and Supplementary Material

No

Available for download on Thursday, August 01, 2024

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