Complex numbers-partial least-squares applied to the treatment of electrochemical impedance spectroscopy data

2019 ◽  
Vol 1080 ◽  
pp. 1-11 ◽  
Author(s):  
Dayvison Ribeiro Rodrigues ◽  
Alejandro César Olivieri ◽  
Wallace Duarte Fragoso ◽  
Sherlan Guimarães Lemos
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Least Squares ◽  
Partial Least Squares ◽  
Electrochemical Impedance ◽  
Complex Numbers ◽  
Spectroscopy Data ◽  
Electrochemical Impedance Spectroscopy Data

scholarly journals Mutual Effects of Components of Protective Films Applied on Steel in Octadecylamine and 1,2,3-Benzotriazole Vapors

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7181
Author(s):  
Andrey Y. Luchkin ◽  
Olga A. Goncharova ◽  
Nina P. Andreeva ◽  
Vadim E. Kasatkin ◽  
Sergey S. Vesely ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Elevated Temperatures ◽  
Electrochemical Impedance ◽  
Activation Mechanism ◽  
Spectroscopy Data ◽  
Physical Methods ◽  
Protective Films ◽  
Electrochemical Impedance Spectroscopy Data ◽  
Nanoscale Films

In this work, we used a combination of corrosion, electrochemical, and physical methods to determine the properties of nanoscale films obtained by treatment with octadecylamine (ODA), benzotriazole (BTA) vapors, and their mixtures at elevated temperatures. The mixture of ODA + BTA surpasses its components in protective aftereffect, but an analysis of their mutual effects shows that there is antagonism between them. Electrochemical impedance spectroscopy data indicate that the protection of steel by a mixture of ODA + BTA and its components is characterized by a mixed blocking activation mechanism. The processing of steel in hot vapors of the ODA + BTA mixture leads to hydrophobization of the surface and super-hydrophobization if a polymodal surface is created on the steel before processing in vapors.

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