Meloxicam Performances for Copper Corrosion Inhibition in 1M HNO₃: Experimental and Theoretical Approaches

Title:Meloxicam Performances for Copper Corrosion Inhibition in 1M HNO₃: Experimental and Theoretical Approaches

Volume: 13 Issue: 1

Author(s): Ehouman Ahissan Donatien*, Bamba Amara, Mariko Kalifa, Kouakou Eric, Diabate Massogbè, Sanou Ali, Kouakou Adjoumani Rodrigue and Niamien Paulin Marius

Affiliation:

• Laboratoire de Thermodynamique et Physico-Chimie du Milieu, UFR SFA, Université Nangui Abrogoua, 02 BP 801 Abidjan 02, Côte-d’Ivoire

Keywords: Copper, corrosion inhibition, meloxicam, mass loss technique, DFT calculations, degradation.

Abstract:

Background: Copper is a metal that is widely used in many fields such as industry and construction, etc. These different industrial sectors use acid solutions such as nitric acid and hydrochloric acid, etc. The use of acid solutions in the industrial environment causes degradation of materials. In recent decades, the use of corrosion inhibitors has become very essential.

Objective: The objective of our study is to test the performance of meloxicam as a copper corrosion inhibitor in a nitric acid medium.

Methods: The studies were conducted using the gravimetric method and density functional theory (DFT) at B3LYP/6-311G (d, p) level of theory. The inhibitory efficiency of the molecule increases with increasing concentration of Meloxicam, but decreases with increasing temperature. The adsorption of the molecule on the copper surface follows the Villamil model.

Results: The thermodynamic quantities of adsorption and activation were determined and discussed. Quantum chemical calculations have allowed determining the molecular descriptors.

Conclusion: There is a good agreement between the experimental and theoretical results. Electrochemical studies are envisaged.

Cite this article as:

Donatien Ahissan Ehouman*, Amara Bamba, Kalifa Mariko, Eric Kouakou, Massogbè Diabate, Ali Sanou, Rodrigue Adjoumani Kouakou and Marius Paulin Niamien, Meloxicam Performances for Copper Corrosion Inhibition in 1M HNO₃: Experimental and Theoretical Approaches, Current Physical Chemistry 2023; 13 (1) . https://dx.doi.org/10.2174/1877946813666221117101443