Journal ArticleDOI
Inhibition of acid corrosion of steel using cetylpyridinium chloride
Asem A. Atia,Mahmoud M. Saleh +1 more
TLDR
The cationic surfactant cetylpyridinium chloride (CPC) showed high inhibition efficiency for the corrosion of low carbon steel in 1 M H2SO4.Abstract:
The cationic surfactant cetylpyridinium chloride (CPC) showed high inhibition efficiency for the corrosion of low carbon steel in 1 M H2SO4. Electrochemical measurements were dedicated to test the performance of CPC at different concentrations and temperatures. CPC has a significant inhibiting effect on the corrosion of steel and protection efficiencies up to 97% were measured. The inhibitor shifted the corrosion potential in the cathodic direction. It was found that adsorption is consistent with the Bockris–Swinkels isotherm in the studied temperature range (30–60 °C). The negative values of the free energy of adsorption and the decrease in apparent activation energy in the presence of the inhibitor suggest chemisorption of the CPC molecule on the steel surface.read more
Citations
More filters
Journal ArticleDOI
Beneficial role of surfactants in electrochemistry and in the modification of electrodes
TL;DR: The article gives a brief account on metal hexacyanoferrate modified electrodes and the salient features of the published results on the beneficial role of cetyltrimethylammonium bromide (CTAB), a cationic surfactant, in the modification of electrodes with MHCFs and their derivatized oxides, and with titanium dioxide.
Journal ArticleDOI
Pyrazolone derivatives as corrosion inhibitors for C-steel in hydrochloric acid solution
TL;DR: In this article, 4-phenylazo-3-methyl-2-pyrazolon-5-one and three derivatives were investigated as corrosion inhibitors for C-steel in 2 M hydrochloric acid solution using weight-loss and galvanostatic polarization techniques.
Journal ArticleDOI
Effect of cationic surfactant and inorganic anions on the electrochemical behavior of carbon steel in formation water
TL;DR: In this article, the carbon steel in formation water associated crude oil from Egyptian western desert was studied at various concentrations of dodecyl dimethyl ammonium chloride (CS) as a cationic surfactant.
Journal ArticleDOI
Synergistic effect of mixed cationic and anionic surfactants on the corrosion inhibitor behavior of mild steel in 3.5% NaCl
TL;DR: In this article, the corrosion inhibition characteristics of cation-rich and anion-rich catanionic mixtures of cetyltrimethyl ammonium bromide (CTAB) and sodium dodecyl sulfate (SDS) in aqueous solution of 3.5% NaCl were investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and scanning electron microscopy (SEM).
Journal ArticleDOI
Synergistic inhibitor effect of cetylpyridinium chloride and other halides on the corrosion of mild steel in 0.5 M H2SO4
TL;DR: In this article, the synergistic inhibitory action of cetylpyridinium chloride (CPC) and different halides on the corrosion of mild steel in 0.5 M H2SO4 has been investigated using electrochemical methods and scanning electron microscopy (SEM).
References
More filters
Journal ArticleDOI
Electrochemical Polarization I . A Theoretical Analysis of the Shape of Polarization Curves
Milton Stern,A. L. Geary +1 more
TL;DR: In this paper, a linear dependence of potential on applied current is described for a corroding electrode by treating it in a manner analogous to that for a non-corroding electrode, and an equation is derived relating the slope of this linear region to the corrosion rate and Tafel slopes.
Journal ArticleDOI
Adsorption of n‐Decylamine on Solid Metal Electrodes
TL;DR: In this article, the adsorption from solution of n−decylamine on five metals has been measured using a new method, which consists of adsorbing radioactively labeled organic compounds on a metal tape electrode and measuring the reulting radioactivity from the tape.
Journal ArticleDOI
Influence of 2,5-bis(4-dimethylaminophenyl)-1,3,4-thiadiazole on corrosion inhibition of mild steel in acidic media
TL;DR: In this paper, a new class of corrosion inhibitors, namely, 2,5-bis(4-dimethylaminophenyl)-1,3,4-thiadiazole (DAPT), was synthesized and its inhibiting action on the corrosion of mild steel in 1 M HCl and 0.5 M H2SO4 at 30 °C was investigated by various corrosion monitoring techniques.
Journal ArticleDOI
Contribution to Adsorption of Aromatic Amines on Mild Steel Surface from HCl Solutions by Impedance, UV, and Raman Spectroscopy
G. Banerjee,S. N. Malhotra +1 more
TL;DR: In this article, an attempt is made to study the mechanism of adsorption by using the concept of π-scale of potential as proposed by Antropov, and the potential of zero charge of mild steel is studied by two different techniques.
Journal ArticleDOI
Some Nonionic Surfactants as Inhibitors of the Corrosion of Iron in Acid Chloride Solutions
TL;DR: In this paper, the effect of surfactants on the corrosion of iron in 1 M hydrochloric acid (HCl) was studied and results obtained from gravimetric methods showed inhibition efficiencies increased with increasing surfactant concentrations and attained a maximum around their critical micellar concentration (cmc).