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Matějovský, Lukáš
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Amines as Steel Corrosion Inhibitors in Ethanol-Gasoline Blendscitations
- 2024The Use of Amines as Steel Corrosion Inhibitors in Butanol-Gasoline Blendscitations
- 2022Methods for Testing the Steel Corrosion Inhibition in Alcohol−Gasoline Blends Using Diethylenetriaminecitations
- 2022Corrosion Aggressiveness of Ethanol-Gasoline and Butanol-Gasoline Blends on Steel: Application of Electrochemical Impedance Spectroscopycitations
- 2022Passivation of steel in ethanol–gasoline blends induced by diethylene triaminecitations
- 2021Electrochemical Corrosion Tests in an Environment of Low-Conductive Ethanol-Gasoline Blends: Part 1 – Testing of Supporting Electrolytescitations
- 2021Electrochemical Study of Mild Steel Resistance in Butanol-Gasoline and Ethanol-Gasoline Blendscitations
- 2021Electrochemical Corrosion Tests in Low-Conductivity Ethanol-Gasoline Blends: Application of Supporting Electrolyte for Contaminated E5 and E10 Fuelscitations
- 2019Cyclic Potentiometric Polarization and Resistance of Mild Steel in an Environment of Alcohols and their Blends with Gasolinecitations
- 2018Study of Corrosion Effects of Oxidized Ethanol-Gasoline Blends on Metallic Materialscitations
- 2017Study of Corrosion of Metallic Materials in Ethanol-Gasoline Blends: Application of Electrochemical Methodscitations
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article
Passivation of steel in ethanol–gasoline blends induced by diethylene triamine
Abstract
In this work, electrochemical measurements are applied with the aim to obtain detailed information about diethylene triamine (DETA) influence on corrosion of carbon steel in Ethanol-Gasoline Blends (EGB). High corrosion inhibition efficiency of DETA in both E60 and E85 fuels is documented. Significant increase of the inhibitive effect with exposure time suggests steel passivation effect triggered by DETA in EGB. Main factors which facilitate passivation are alkalization resulting from DETA protonation, DETA+ cations bonding of chloride ions in ion pairs and high concentration of dissolved oxygen in EGB. Electrochemical tests show that alkalization has only negligible effect on cathodic process and main cathodic reaction is dissolved oxygen reduction. It is also illustrated that electrochemical measurements can help assess chemical changes in EGB environment due to polarization. © 2022