Electrochemical Adsorption Properties and Inhibition of Zinc Corrosion by Two Chromones in Sulfuric Acid Solutions 


Vol. 58,  No. 2, pp. 160-168, Apr.  2014
10.5012/jkcs.2014.58.2.160


PDF
  Abstract

The electrochemical behavior and corrosion inhibition of zinc in 0.5 M H2SO4 in the absence and presence of some chromones has been investigated using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. The presence of these investigated compounds in the corrosive solutions decrease the weight loss, the corrosion current density, and double layer capacitance but increases the charge transfer resistance. Polarization studies were carried out at room temperature, and showed that all the studied compounds act as mixed type inhibitors with a slight predominance of cathodic character. The effect of temperature on corrosion inhibition has been studied and the thermodynamic activation and adsorption parameters were determined and discussed. The adsorption of the investigated compounds on zinc was found to obey Langmuir adsorption isotherm.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

A. E. A. S. Fouda, A. A. Nazeer, A. Saber, "Electrochemical Adsorption Properties and Inhibition of Zinc Corrosion by Two Chromones in Sulfuric Acid Solutions," Journal of the Korean Chemical Society, vol. 58, no. 2, pp. 160-168, 2014. DOI: 10.5012/jkcs.2014.58.2.160.

[ACM Style]

Abd El Aziz S Fouda, Ahmed Abdel Nazeer, and Ahmed Saber. 2014. Electrochemical Adsorption Properties and Inhibition of Zinc Corrosion by Two Chromones in Sulfuric Acid Solutions. Journal of the Korean Chemical Society, 58, 2, (2014), 160-168. DOI: 10.5012/jkcs.2014.58.2.160.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

ISSN(Print) 1017-2548
ISSN(Online) 2234-8530