Rathika, Govindasamy (2021) Assessing bioorganic gum performance as a corrosion inhibitor in phosphoric acid medium: Electrochemical and computational analysis. Materials and Corrosion. pp. 1-13.

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Abstract

The present investigation was aimed at exploring the anticorrosive behavior of
bio‐organic Auraucaria heterophylla gum exudate (AHGE) on mild steel (MS)
corrosion in 1 M phosphoric acid solution by weight loss technique, electrochemical studies, and computational analysis. Additionally, the performance
was analyzed by morphological and quantum chemical analyses. The weight
loss data revealed that AHGE showed 80% of inhibition efficiency at 303 K
temperature. Inhibitor adsorption on MS was in line with Langmuir and
Tempkin adsorption isotherms. Potentiodynamic studies showed that the investigated AHGE performed as a mixed‐type inhibitor. Electrochemical
parameters like charge transfer resistance, double‐layer capacitance, and inhibition efficiency were determined and presented. Results obtained through
computational analysis, scanning electron microscopy/energy dispersive X‐ray
analysis, and atomic force microscopy studies were well supported by the
inhibitive potential of AHGE.

Item Type: Article
Uncontrolled Keywords: acid medium, computational analysis, corrosion, electrochemical studies, mild steel
Divisions: PSG College of Arts and Science > Department of Chemistry
Depositing User: Mr Team Mosys
Date Deposited: 20 Oct 2022 06:08
Last Modified: 20 Oct 2022 06:08
URI: http://ir.psgcas.ac.in/id/eprint/1600

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