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Effect of Temperature on Adsorption Behavior and Corrosion Inhibition Performance of Imidazoline-Type Inhibitor

In the present study, the effect of temperature on the adsorption/desorption kinetics and thermodynamics of diethylenetriamine talloil fatty acid imidazoline (DETA/TOFA imidazoline) is studied on a gold coated crystal using a quartz crystal microbalance (QCM) in a CO2 saturated 1wt% NaCl aqueous solution.

 

Product Number: 51317--9350-SG
ISBN: 9350 2017 CP
Author: Yuan Ding
Publication Date: 2017
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In the present study the effect of temperature on the adsorption kinetics and thermodynamics of diethylenetriamine talloil fatty acid imidazoline (DETA/TOFA imidazoline) is studied on a gold coated crystal using a Quartz Crystal Microbalance (QCM) in a CO2 saturated 1wt% NaCl solution. The corrosion inhibition performance of imidazoline on X65 steel is also investigated at different temperatures using Linear Polarization Resistance (LPR). QCM results show that the adsorption of imidazoline generally follows Langmuir adsorption process and the desorption of inhibitor is favored with increasing temperature. The desorption rate constant is found to increase more with temperature than the adsorption reaction rate constant. Inhibition test results generally agree well with those obtained from QCM test and the loss of corrosion inhibition efficiency is attributed to the greater rate of desorption of inhibitor at higher temperature.Key words: QCM adsorption kinetics adsorption thermodynamics Imidazoline inhibitor Temperature effect

Key words: QCM, adsorption kinetics, adsorption thermodynamics, imidazoline inhibitor, temperature effect

In the present study the effect of temperature on the adsorption kinetics and thermodynamics of diethylenetriamine talloil fatty acid imidazoline (DETA/TOFA imidazoline) is studied on a gold coated crystal using a Quartz Crystal Microbalance (QCM) in a CO2 saturated 1wt% NaCl solution. The corrosion inhibition performance of imidazoline on X65 steel is also investigated at different temperatures using Linear Polarization Resistance (LPR). QCM results show that the adsorption of imidazoline generally follows Langmuir adsorption process and the desorption of inhibitor is favored with increasing temperature. The desorption rate constant is found to increase more with temperature than the adsorption reaction rate constant. Inhibition test results generally agree well with those obtained from QCM test and the loss of corrosion inhibition efficiency is attributed to the greater rate of desorption of inhibitor at higher temperature.Key words: QCM adsorption kinetics adsorption thermodynamics Imidazoline inhibitor Temperature effect

Key words: QCM, adsorption kinetics, adsorption thermodynamics, imidazoline inhibitor, temperature effect

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