Abstract
Effect of Artemisia plant Extract (APE) on the copper corrosion as a corrosion inhibitor in an aerated acidic solution of in 2M H3PO4 containing 3.10-1 M NaCl has been investigated using gravimetric and electrochemical techniques. A significant decrease in the corrosion rate of copper was observed in the presence of the Artemisia plant extract. The potentiodynamic polarization data indicated that the inhibitor was of mixed type. Impedance measurements showed that the charge transfer resistance increased and double layer capacitance decreased with increase in the inhibitor’s concentration. Also, some thermodynamic data for the activation are calculated and discussed. The results obtained from potentiodynamic polarization, impedance measurements and gravimetric method are in good agreement.
Highlights
Copper is metal that has a wide range of applications due to its good properties
The results obtained from potentiodynamic polarization, impedance measurements and gravimetric method are in good agreement
It is noticed that presence of heteroatoms such as nitrogen, sulphur, phosphorous in the organic compound molecule improves its action as copper corrosion inhibitor
Summary
Copper is metal that has a wide range of applications due to its good properties. It is used in electronics, for production of wires, sheets, tubes, and to form alloys. The possibility of the copper corrosion prevention in different aqueous solutions has attracted many researchers so until now numerous possible inhibitors have been investigated. These studies reported that there are a number of organic and inorganic compounds which can do that for the corrosion of copper [1,2,3,4,5]. It is noticed that presence of heteroatoms such as nitrogen, sulphur, phosphorous in the organic compound molecule improves its action as copper corrosion inhibitor. Plant extracts have attracted attention in the field of corrosion inhibition for many decades As natural products, they are a source of non-toxic, eco-friendly, readily available and renewable inhibitors for preventing metal and alloy corrosion [10,11,12,13,14]. The assessment of the corrosion behavior was studied using weight loss, potentiodynamic polarization measurement
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