Abstract
AbstractThe corrosion behavior of copper in 0.1 M aqueous sulfuric acid medium has been studied using potentiodynamic polarization measurements, quantum chemical calculations, and molecular dynamic simulations in the presence and absence of (2E,5E)-2,5-dibenzylidenecyclopentanone (M1) and (2E,5E)-bis[(4-dimethylamino)benzylidene]cyclopentanone (M2). The compounds were freshly prepared in high yields via the Claisen–Schmidt reaction between the cyclopentanone and the corresponding aryl aldehyde. The results from the potentiodynamic measurements imply thatM1andM2act as mixed inhibitors due to their adsorption on the copper surface. The more pronounced corrosion inhibition performance of theM2molecule in comparison toM1was related to the fact that this molecule contains two basic nitrogen atoms (in 4-dimethylamino group).
Highlights
The corrosion behavior of copper in 0.1 M aqueous sulfuric acid medium has been studied using potentiodynamic polarization measurements, quantum chemical calculations, and molecular dynamic simulations in the presence and absence of (2E,5E)-2,5-dibenzylidenecyclopentanone (M1) and (2E,5E)-bis[(4-dimethylamino)benzylidene]cyclopentanone (M2)
Copper, due to its desirable properties, is among the most utilized. Even though it is known for its durability, under certain conditions it is prone to corrosion [1,2]
Serious environmental concerns have been raised over the extensive use of these types of additives, due to their persistence in sediments, resistance to degradation, and toxicity to aquatic organisms [10]
Summary
Abstract: The corrosion behavior of copper in 0.1 M aqueous sulfuric acid medium has been studied using potentiodynamic polarization measurements, quantum chemical calculations, and molecular dynamic simulations in the presence and absence of (2E,5E)-2,5-dibenzylidenecyclopentanone (M1) and (2E,5E)-bis[(4-dimethylamino)benzylidene]cyclopentanone (M2). Copper, due to its desirable properties, is among the most utilized. Even though it is known for its durability (in neutral aqueous systems), under certain conditions it is prone to corrosion [1,2]. Copper cannot displace hydrogen from acid solutions without the presence of dissolved oxygen [3]. The copper corrosion inhibitors are classified into inorganic and organic inhibitors. The quest for novel “green” copper corrosion inhibitors is ongoing
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