scholarly journals Corrosion inhibition, surface adsorption and computational studies of Momordica charantia extract: a sustainable and green approach

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Rajesh Haldhar ◽  
Dwarika Prasad ◽  
Divya Kamboj ◽  
Savas Kaya ◽  
Omar Dagdag ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Spectroscopic Technique ◽  
Momordica Charantia ◽  
Green Approach ◽  
Carbon Steel Surface ◽  
Weight Loss Method ◽  
Loss Method ◽  
Inhibitory Molecules

AbstractThe aerial parts extract of Momordica charantia plant were used for the corrosion resistance of carbon steel in the acidic medium (0.5 M H2SO4) utilizing weight loss method, Tafel and Electrochemical Impedance Spectroscopy. The state of mixed inhibitor adsorption on the carbon steel surface is shown by potentiodynamic polarization. M. charantia achieved the extraordinary inhibition efficiency of 93.51% at 500 mg/L of inhibitor concentration. Scanning electron microscopy and atomic force microscopy were used to know about the thin layer which was formed on the surface of carbon steel for its protection from corrosion and the adsorption of inhibitor was shown by UV–vis. spectroscopic technique. Fourier Transform Infrared Spectroscopy technique confirmed the existence of functional groups and the heteroatoms exhibit in the inhibitor. Adsorbance by the inhibitory molecules on the carbon steel surface followed the Langmuir adsorption isotherm. Hypothetical investigations (computational) showed a very valuable report. All acquired outcomes ensure that M. charantia extract can procedure an effectual preventing layer and restrict the corrosion procedure.

scholarly journals Green approach towards corrosion inhibition of carbon steel in produced oilfield water using lemongrass extract

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45241-45251 ◽  
Author(s):  
M. A. Deyab ◽  
M. M. Osman ◽  
A. E. Elkholy ◽  
F. El-Taib Heakal
Keyword(s):  
Weight Loss ◽  
Electrochemical Impedance Spectroscopy ◽  
Carbon Steel ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Cymbopogon Citratus ◽  
Green Approach ◽  
Weight Loss Method ◽  
Loss Method ◽  
Oilfield Water

The anti-corrosion action of lemongrass (cymbopogon citratus) extract (LGE) was evaluated for carbon steel in produced oilfield water using weight loss method and electrochemical impedance spectroscopy (EIS).

scholarly journals Some Thiophene Derivatives as Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
A. S. Fouda ◽  
A. A. Attia ◽  
A. A. Negm
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Potentiodynamic Polarization ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Effect Of Temperature ◽  
Carbon Steel Surface ◽  
Weight Loss Method ◽  
Thiophene Derivatives

Corrosion inhibitive performance of some thiophene derivatives during the acidic corrosion of carbon steel surface in 1 M HCl was investigated by chemical technique (weight loss) and electrochemical techniques (potentiodynamic polarization, electrochemical frequency modulation, and electrochemical impedance spectroscopy). The effect of temperature on the corrosion rate was investigated by the weight loss method, and some thermodynamic parameters for corrosion and adsorption processes were determined and discussed. The results show that the inhibition efficiency increased with the increase in inhibitor concentration and temperature. The adsorption of thiophene derivatives on the carbon steel surface obeys Langmuir adsorption isotherm. The obtained results indicated that the investigated compounds are chemically adsorbed on the steel surface. Potentiodynamic polarization studies showed that these compounds are mixed-type inhibitors and the results obtained from the techniques are in good agreement.

scholarly journals The Inhibitive Effect of 2-Phenyl-3-nitroso-imidazo [1, 2-a]pyridine on the Corrosion of Steel in 0.5 M HCl Acid Solution

2010 ◽  
Vol 7 (s1) ◽  
pp. S35-S42 ◽  
Author(s):  
K. Bouhrira ◽  
F. Ouahiba ◽  
D. Zerouali ◽  
B. Hammouti ◽  
M. Zertoubi ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Carbon Steel Surface ◽  
Langmuir Isotherm Model ◽  
Corrosion Of Steel ◽  
Good Agreement

The effect of 2-phenyl-3-nitroso-imidazo[1,2-a]pyridine (PNIP) on the corrosion inhibition of carbon-steel in 0.5 M HCl was studied by weight loss and different electrochemical techniques such as electrochemical impedance spectroscopy (EIS), potentiodynamic polarization. The obtained results showed that PNIP effectively reduces the corrosion rate of carbon steel. Inhibition efficiency (E%) increases with inhibitor concentration to attain 88% at 10-3M. Adsorption of that PNIP on the carbon steel surface in 0.5 M HCl follows the Langmuir isotherm model. E% values obtained from various methods used are in good agreement. SEM characterization of the steel surface is made.

Electrochemical and XPS studies of alkyl imidazoline on the corrosion inhibition of carbon steel in citric acid solution

2016 ◽  
Vol 34 (5-6) ◽  
pp. 295-304 ◽  
Author(s):  
Dong Yang ◽  
Song Hui Liu ◽  
Yu Pei Shao ◽  
Shao Di Xu ◽  
Lu Lu Zhao ◽  
...  
Keyword(s):  
Citric Acid ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Electrochemical Techniques ◽  
Acid Solutions ◽  
Xps Spectra ◽  
Carbon Steel Surface ◽  
Weight Loss Method ◽  
Loss Method

AbstractThe corrosion inhibition behavior of an imidazoline derivative, namely, 2-undecyl-N-carboxymethyl-N-hydroxyethyl imidazoline (UHCI) for carbon steel in 4 wt.% citric acid solutions was characterized by weight loss method and electrochemical techniques in conjunction with X-ray photoelectron spectrometer (XPS) technique. The inhibitor has a good anti-corrosion effect on the carbon steel in 4 wt.% citric acid solutions. The inhibition efficiency increases with UHCI concentrations from 0 up to 0.4 wt.%, yet declines a bit at 0.6 wt.% per contra with further augmentation of concentration. The inhibition efficiency declines with the rise of temperature from 20°C to 95°C, while it rises with the extension of soaking time from 2 h to 24 h. Two N1s peaks that appeared in XPS spectra give proof of UHCI inhibitor adsorbed on the carbon steel surface.

scholarly journals Synthesis of ZnO-NPs Using a Convolvulus arvensis Leaf Extract and Proving Its Efficiency as an Inhibitor of Carbon Steel Corrosion

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 890
Author(s):  
Ghadah M. Al-Senani
Keyword(s):  
Carbon Steel ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Steel Corrosion ◽  
Protective Film ◽  
Convolvulus Arvensis ◽  
Zno Nps ◽  
Transfer Resistance ◽  
Carbon Steel Surface ◽  
Vis Spectroscopy

This paper studies the use of zinc oxide nanoparticles (ZnO-NPs) synthesized using an extract of Convolvulus arvensis leaf and expired ZnCl2, as efficient inhibitors of carbon steel corrosion in a 1 M HCl solution. The synthesized ZnO-NPs were characterized by Fourier-transform infrared (FTIR) and UV-Vis spectroscopy analysis. The corrosion inhibition of carbon steel in 1 M HCl was also investigated through potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and the determination of weight loss. The results show that the efficiency of the prevention increased when the concentration of ZnO-NPs was increased to 91%, and that the inhibition efficiency was still high (more than 89%) despite decreasing at high temperatures, acting as a mixed-type inhibitor. A sample of carbon steel with a protective layer of inhibitor on top was observed during immersion in 1 M HCl for 20 h; an increase in the charge transfer resistance (Rct) and stability of the inhibitor could be observed after 6 h. Adsorption isotherm models demonstrated that the inhibitor adsorption mechanism on the carbon steel surface followed Langmuir rather than Freundlich and Temkin behaviors. The thermodynamic parameters showed that the adsorption process is one of mixed, spontaneous, and exothermic adsorption. The results illustrate that the ZnO-NPs were a strong inhibitor of carbon steel corrosion in acid medium. The results of scanning electron microscopy (SEM) images showed that the ZnO-NPs formed a good protective film on the carbon steel surface.

Investigation of 4-Methoxysalicylaldehyde Thiosemicarbazone as Inhibitor for Carbon Steel in Sulfuric Acid Solution

2014 ◽  
Vol 633-634 ◽  
pp. 513-516
Author(s):  
Hong Hong Zhang ◽  
Yan Zhang ◽  
Zhong Nian Yang
Keyword(s):  
Weight Loss ◽  
Schiff Base ◽  
Carbon Steel ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Langmuir Adsorption Isotherm ◽  
Inhibition Effect ◽  
Langmuir Adsorption ◽  
Carbon Steel Surface ◽  
Eis Measurements

The Schiff base 4-methoxysalicylaldehyde thiosemicarbazone (MST) was synthesized and its corrosion inhibition effect on carbon steel in 0.5 M H2SO4 solution was tested via weight loss and electrochemical impedance spectroscopy (EIS) measurements. The results show that MST serves as an effective corrosion inhibitor for carbon steel. The corrosion rate of carbon steel decreases with the increase in concentration of MST. The adsorption of MST on the carbon steel surface conforms to the Langmuir adsorption isotherm.

scholarly journals Gravimetric, electrochemical and surface study on the good’s buffer ionic liquid as corrosion inhibitor for carbon steel in acidic medium

2019 ◽  
Vol 13 (1) ◽  
pp. 4434-4448
Author(s):  
R. Nanthini ◽  
M. I. Mutalib
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Potentiodynamic Polarization ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Scanning Electron Micrographs ◽  
Inhibitor Molecule ◽  
Gravimetric Measurements ◽  
Carbon Steel Surface ◽  
Inhibition Performance

This corrosion study assessed the inhibition performance of carbon steel in 1 M of hydrochloric acid (HCl) using Good’s buffer ionic liquids (GBIL) namely 1-Butyl-3-methylimidazolium 2-(N-Morpholino) propane, [BMIM][MOPS] using electrochemical impedance, potentiodynamic polarization, and weight loss (gravimetric) measurements. GBIL are synthesized by the combination of Good's buffer as anion and various organic bases as the cation. The gravimetric measurements exhibit higher reduction in weight for carbon steel exposed to the acidic environment in the absence of corrosion inhibitor (CI) as compared to carbon steel immersed in the presence of inhibitor molecule. Potentiodynamic polarization study indicates that the synthesized inhibitor acted as a mixed type inhibitor. The inhibition efficiency increases with increase in the concentration of [BMIM][MOPS]. Corrosion protection efficiency ranging from 88% to 90% was featured at 800 ppm of CI in the HCl medium. The adsorption of [BMIM][MOPS] on the carbon steel surface was described by the Langmuir's adsorption isotherm. The scanning electron micrographs inspected the morphology of the carbon steel surface exposed to the solution without and with the presence of inhibitor. The result showed that compound effectively suppressed corrosion by the appearance of an improved surface structure of carbon steel with increasing concentration of [BMIM][MOPS].

scholarly journals Citrus sinensis Extract as a Green Inhibitor for the Corrosion of Carbon Steel in Sulphuric Acid Solution

2021 ◽  
Vol 11 (6) ◽  
pp. 14007-14020
Keyword(s):  
Carbon Steel ◽  
Citrus Sinensis ◽  
Mixed Type ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Sulphuric Acid Solution ◽  
Chemical Methods ◽  
Green Inhibitor ◽  
Carbon Steel Surface ◽  
Temkin Adsorption Isotherm

Citrus sinensis extract is considered a good inhibitor to protect the carbon steel in half of molar of sulfuric acid from corrosion, as it was found from the results of chemical methods such as the weight loss (ML) method and also from the results of electrochemical methods such as potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM). The polarization curves indicated that this extract acts as a mixed kind inhibitor. The adsorption of this extract on the carbon steel surface is of mixed type physisorption and chemisorption, but chemisorption is the most effective one and followed Temkin adsorption isotherm. Several tests have proved a layer that protects carbon steel from corrosion.

scholarly journals Interactions in Composite Film Formation of Mefp-1/graphene on Carbon Steel

Coatings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1161
Author(s):  
Jie Cheng ◽  
Nanxuan Mei ◽  
Sulin Chen ◽  
Pengpeng Bai ◽  
Bin Shen ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Composite Film ◽  
Steel Surface ◽  
Electrochemical Impedance ◽  
Film Formation ◽  
Steel Substrate ◽  
Covalent Bond ◽  
Green Composite ◽  
Covalent Bonds ◽  
Carbon Steel Surface

Mefp-1 adhesive protein derived from marine blue mussels, together with the 2D material graphene, was used to build the green composite film with enhanced anti-corrosion property and mechanical strength. The corrosion inhibition of the composite film, formed by different methods, was evaluated by using electrochemical impedance spectroscopy. The non-degraded adhesion of the composite film to the carbon steel substrate was proved by nano-scratch tests. Infrared spectroscopy was utilized to investigate the film formation process and “three-body interactions” between Mefp-1, graphene and carbon steel surface. The results show that the Mefp-1 adsorbs on the carbon steel surface mainly through the covalent bond between catechols and Fe(III). Meanwhile, Mefp-1 can bond to non-adhesive graphene by forming hydrogen bonds and π−π interaction non-covalent bonds, which facilitate the formation of a robust Mefp-1/graphene composite film on the carbon steel surface.

scholarly journals Corrosion Inhibition of Carbon Steel using Dipropyl Sulphide as Inhibitor System in Sulphuric Acid Solution

2021 ◽  
Vol 33 (12) ◽  
pp. 3115-3122
Author(s):  
P. Vijayakumar ◽  
S. Valarselvan ◽  
S.S. Syed Abuthahir
Keyword(s):  
Carbon Steel ◽  
Corrosion Rate ◽  
Sulphuric Acid ◽  
Surface Analysis ◽  
Corrosion Inhibition ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Protective Film ◽  
Carbon Steel Surface ◽  
Loss Method

The corrosion inhibition effect of dipropyl sulphide (DPS) on carbon steel immersed in 0.5 N sulphuric acid has been evaluated at room temperature using mass loss method. The corrosion rate and inhibition efficiency was obtained from weight loss method. The corrosion inhibition efficiency increases with increase in concentration of an inhibitor. The corrosion rate decreases when increase in concentration of inhibitor. This is due to the higher concentration of inhibitor solution, which blocks the active site of a carbon steel and a protective film is formed on the carbon steel surface. Electrochemical studies have been used to confirm the formation of protective film over the carbon steel surface. This is further confirmed by surface analysis technique like FTIR spectroscopy and scanning electron microscopy. Energy dispersive analysis of X-ray was used to analyze the elements present over the carbon steel surface. Surface analysis of polished, corroded and inhibitor carbon steel surface has been evaluated by SEM. In order to study adsorption of dipropyl sulphide on carbon steel, in situ atomic force microscopy (AFM) measurements were performed in control, with and without dipropyl sulphide in 0.5 N H2SO4 solution.

Sign in / Sign up

Export Citation Format

Share Document