Effect of Acidified Feronia elephantum Leaf Extract on the Corrosion Behavior of Mild Steel

Muthukrishnan, Pitchaipillai; Prakash, P.; Ilayaraja, M.; Balasubramanian, Jeyaprabha; Shankar, K. Ravi

doi:10.1007/s11663-015-0322-1

Cited by 20 publications

(6 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, an inhibitory efficiency of 83% was determined for the highest amount of castor bark powder added (1.77 g.L -1 ) to the HCl 0.5 mol L -1 , which is compatible with results available for others green inhibitors 10,29,31 as well as determined for other castor oil compounds [20][21][22] . However, in accordance with the adsorption isotherm calculations, the results showed a decrease of the inhibition efficiency with immersion time, indicating that the castor bark powder can be used only in applications where long immersion periods are not required.…”

Section: Discussionsupporting

confidence: 82%

“…The results displayed in Table 1 show that the inhibition efficiency of castor bark powder against AISI 1020 carbon steel corrosion increases up to 83% when 1.77 g.L -1 was added to the solution. Several scientists in their studies reported similar results for green inhibitors 4,10,[30][31][32][33] . The maximum values achieved are also compatible with those found for other castor oil compounds [20][21][22] .…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 65%

See 1 more Smart Citation

Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media

et al. 2017

View full text Add to dashboard Cite

The inhibition effect of castor bark powder obtained from Ricinus communis on AISI 1020 carbon steel in acidic media (HCl 0.5 mol.L -1 ) has been studied by electrochemical impedance spectroscopy (EIS), polarization curves, scanning vibrating electrode technique (SVET) and weight loss measurements. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were employed as characterization techniques. The EIS and gravimetric results showed that the inhibitory efficiency increases with inhibitor concentration achieving 83%. Polarization curves indicated that the castor bark powder acts as mixed inhibitor. The adsorption of the powder components on the metal surface follows the Langmuir isotherm. The FTIR analyses indicate the presence of C, N and O heteroatoms, incorporated in functional groups mainly related to the presence of carboxylic acids as ricinoleic acid, which could be responsible for the inhibitory properties of the powder. SEM analyses showed that the corrosion process was retarded in the presence of inhibitor in the electrolyte, which was confirmed by SVET measurements. Therefore, the results indicate that castor bark powder has potential to be a corrosion inhibitor for carbon steel in acidic media.

show abstract

Section: Discussionsupporting

confidence: 82%

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 65%

Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Similarly, the plot of θ versus log C for Temkin and the plot of log θ versus log C for Freundlich should be linear. According to the correlation coefficient (R 2 ) obtained from plots in Table 4, the Langmuir isotherm suits the experiment data better, with R 2 close to unity, suggesting monolayer adsorption of the inhibitor on the surface of LCS [70,71]. The adsorption equilibrium constants K ads = 0.007, 0.055, and 0.029 dm 3 mg À1 (L mg À1 ) were determined from the intercept of the line in Figure 10, and the corresponding normal Gibbs free energy of adsorption (kJ mol À1 ) was calculated from Equation (4) [72,73].…”

Section: Adsorption Isothermmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Camphor tree bark extract as green corrosion inhibitor of LCS in 0.5 M H₂SO₄ with and without salt effect

El Nemr,

Elhebshi,

Ashour

et al. 2024

J Chinese Chemical Soc

View full text Add to dashboard Cite

This work tested the ethanol extract of camphor tree Cinnamomum camphora bark (CTBEE) as a green corrosion inhibitor of low carbon steel (LCS) in 0.5 M H2SO4 with and without the synergistic effect of 4000 ppm NaCl or 800 ppm of KI. The corrosion protection of LCS was significantly increased in the presence of CTBEE‐KI and CBWE‐NaCl blends compared with CTBEE alone, according to data performed by electrochemical impedance spectroscopy (EIS) and electrochemical polarization (EP) analyses. The formation of a film by the blends blocks the LCS surface area, preventing corrosive gradients from reaching its surface. Inhibition efficiency (IE%) of 81% and 89% were obtained in the presence of 800 ppm CTBEE‐4000 ppm NaCl and CTBEE‐800 ppm KI, respectively, compared with IE of 65% in the presence of 800 ppm CTBEE only. A maximum IE% of 89% and 97% were reached after 72 h of immersion in the presence of CTBEE‐NaCl and CTBEE‐KI, respectively. Potentiodynamic experiments indicate that the blends act as mixed‐type inhibitors. The inhibition efficiency of CTBEE, CTBEE‐KI, and CTBEE‐NaCl remained effectively high during the testing period of immersion time, which proved the excellent stability of CTBEE in the corrosive acidic media.

show abstract

“…The adsorption isotherm signifies the homogeneity of the system. Popoola [11], in his review, highlighted that most organic corrosion inhibitors obey the Langmuir isotherm, such as sweet potato tuber extracts [89], Feronia elephantum leaf [90], and Mangifera Indica [91]. In addition, Anyiam et al [89] concluded that K ads represents the strength of adsorption, whereby a higher K ads suggests a higher adsorption.…”

Section: Biomass Wastes As Organic Green Corrosion Inhibitorsmentioning

confidence: 99%

A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

Reza

Akhmal

Fadil

et al. 2021

Metals

View full text Add to dashboard Cite

Acid corrosion is a problem pertaining to corrosion that involves an acid solution. It is important to treat metal to preserve its integrity. Thus, acids are utilized to clean and treat metal surfaces. In return, this may lead to over-etching and metal degradation. Corrosion inhibitors were introduced as a solution for the issue. However, there are some problems associated with the usage of conventional corrosion inhibitors. Traces of nitrites and chromates that are present in the inhibitors may lead to serious health and environmental issues. As a solution, organic green corrosion inhibitors have been studied to replace the conventional corrosion inhibitors. These inhibitor molecules form a protective layer on top of the metal surface to suppress metal dissolution when added to the acid solution. This process prevents direct contact between the metal surfaces and the acid environment. This study explores the usage of natural resources and biomass wastes as the basis for organic green corrosion inhibitors. This study also provides some suggestions for new biomass wastes that can be studied as new organic corrosion inhibitors, and it is aimed at opening the perspective of researchers on exploring new organic inhibitors by using natural resources and biomass wastes.

show abstract

Effect of Acidified Feronia elephantum Leaf Extract on the Corrosion Behavior of Mild Steel

Cited by 20 publications

References 35 publications

Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media

Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media

Camphor tree bark extract as green corrosion inhibitor of LCS in 0.5 M H₂SO₄ with and without salt effect

A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

Contact Info

Product

Resources

About

Effect of Acidified Feronia elephantum Leaf Extract on the Corrosion Behavior of Mild Steel

Cited by 20 publications

References 35 publications

Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media

Evaluation of Castor Bark Powder as a Corrosion Inhibitor for Carbon Steel in Acidic Media

Camphor tree bark extract as green corrosion inhibitor of LCS in 0.5 M H2SO4 with and without salt effect

A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

Contact Info

Product

Resources

About

Camphor tree bark extract as green corrosion inhibitor of LCS in 0.5 M H₂SO₄ with and without salt effect