Evaluation of Melissa Officinalis Extract and Oil as Eco-friendly Corrosion Inhibitor for Carbon Steel in Acidic Chloride Solutions

Abstract

The extract (E) and oil of Melissa Officinalis leaves (EO) have been evaluated as a corrosion inhibitors for carbon steel in 1.0 M HCl solution by means of weight loss measurements, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). Tafel polarization study revealed that extract (E) and oil of Melissa Officinalis (EO) act as a mixed type inhibitors. The Nyquist plots showed that with increasing the inhibitors concentrations, the charge-transfer resistance increased and the double-layer capacitance decreased, involving increased inhibition efficiency. The inhibition was found to increase with increasing the concentration of the extract (E) and oil of Melissa Officinalis (EO). The values of inhibition efficiency calculated from weight loss, Tafel polarization curves, and EIS were in good agreement. The effect of temperature on the corrosion behaviour of mild steel in 1.0 M HCl with addition of both extract (E) and oil of Melissa Officinalis (EO) was also studied and thermodynamic parameters were determined and discussed.

Tetraclinis articulata (Vahl) Mast. essential oil as a promising source of bioactive compounds with antimicrobial, antioxidant, anti-inflammatory and dermatoprotective properties: In vitro and in silico evidence

“…The MICs ranged between 31.25 and 125.0 μg/mL and the MBCs and MFC ranged between 31.25 and 1000 μg/mL, which is a promising result. Natural products and/or EOs having a MIC of 2 mg/mL or less may be deemed to have strong antimicrobial activity method [ 51 ]. Our findings are in agreement with those reported in the literature [ [52] , [53] , [54] , [55] ], which showed the efficacy of this EO as a potent antimicrobial agent at minimum concentrations (ranged between 31.25 and 125.0 μg/mL).…”

Phytochemical Analysis and Study of Antioxidant and Antimicrobial Activities of Two Parts of Cupressus arizonica Essential Oils

“…e production of essential oils was realized by hydrodistillation using a Clevenger-type device [18]. Briefly, a quantity of 200 g of each part of the plant was ground and mixed with one liter of water for hydrodistillation for three hours using a Clevenger-type apparatus (ISOLAB Laborgeräte, GmbH, Wertheim, Germany) according to the European Pharmacopoeia method (European Pharmacopeia, Council of Europe, Strasbourg, 3rd ed.…”

Inhibitory effect of Acacia hamulosa methanolic extract on the corrosion of mild steel in 1 M hydrochloric acid

“…The type of experiment was performed as described in recent research [21][22]32] at 308 K. Immediately upon immersion of the samples in the electrolytes, the open circuit potential (OCP) was monitored for one hours. This was followed by potentiodynamic anodic polarisation measurements.…”

“…For several years, the interest of our team, is the valorization of natural products from aromatic and medicinal plants, using them as natural antioxidants [10][11][12] and ecofriendly corrosion inhibitors [13][14][15][16][17][18][19][20][21][22].…”