期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 267, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2021.124697
关键词
Novel Schiff base; Disintegration controller; Sulfuric acid; Steel; Metal halides
A novel Schiff base compound is synthesized, confirmed, and tested as a disintegration controller for steel in sulfuric acid solution, showing significant reduction in the disintegration speed. The efficacy of mitigation improves with the amount of compound synthesized and decreases with the solution's temperature. The addition of metallic chlorides greatly enhances the mitigation efficiency by forming complexes that play a vital role in improving the resistance of steel to disintegration.
A novel Schiff base compound namely: (6E, 7E)-N1, N6-bis(1-methylpyrrolidin-2-ylidene) hexane-1,6-diamine, is synthesized, confirmed, and tested as a disintegration controller for steel in 0.5 mol L-1 sulfuric acid solution. The mitigation efficacy is estimated utilizing electrochemical and chemical methods. The manufactured compound reduces significantly the speed of disintegration. The mitigation efficacy ameliorates with the amount of the synthesized compound and decays with the solution's temperature. Thermodynamics and physical quantities are argued. The compound's adsorption satisfied Langmuir's model. The adsorption of the prepared compound belongs to physical-type. The received results with different techniques were very closely related, which reflects the validity and accuracy. The mitigation efficiency greatly rises by adding metallic chlorides to the Schiff base compound. The formed complexes play a vital role in the ameliorating the resistance of steel to disintegration. Density functional theory was applied to explain the nature of interaction between the Schiff base molecules and the steel metal.
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