Corrosion Inhibition and Adsorption Behavior of 4-((2-Thiophenecarboxylic Acid Hydrazide)methylene)benzoic Acid) on Copper Surface in CO₂-Saturated Oilfield Water

Abstract:

The inhibition effect and inhibition mechanism of a 4-((2-thiophenecarboxylic acid hydrazide)methylene)benzoic acid) (HD) against copper corrosion in CO₂-saturated oilfield water was evaluated using electrochemical techniques and scanning electron microscopy. The experimental results shown that HD is a good corrosion inhibitor and the inhibition efficiency increased with the increase of HD concentration, and research indicate that adsorption behavior of the HD followed the langmuir’s adsorption isotherm and the adsorption mechanism is typical chemisorption.

• Periodical: Key Engineering Materials (Volume 537)
• Pages: 302-306
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.537.302
• Online since: January 2013
• Authors: Shi Liang Chen, Zheng Liu, Jie Liu
• Keywords: Acylhydrazone, Copper, Corrosion Inhibitor, Electrochemical Test, Inhibition Mechanism

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