Corrosion inhibition of mild steel by plant extract in dilute HCl medium

Chauhan, Lakhi Ram; Gunasekaran, G.

doi:10.1016/j.corsci.2006.08.012

Cited by 481 publications

(213 citation statements)

References 26 publications

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“…The Tafel slope variation supposes that the investigated extract influences the kinetics of the hydrogen evolution reaction (33). This indicates an increase in the energy barrier, leading to less gas evolution (34). The approximately constant values of β a for extract indicate that components of this extract were first adsorbed onto the copper and brass surface and impeded by merely blocking the reaction sites of the electrode surface without affecting the anodic reaction mechanism (35).…”

Section: Polarization Curvesmentioning

confidence: 99%

Ceratonia siliqua extractas a green corrosion inhibitor for copper and brass in nitric acid solutions

Fouda

Shalabi

Idress

2015

Green Chemistry Letters and Reviews

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The influence of extract of ceratonia siliqua extract on the corrosion of copper and brass in aqueous 1 M nitric acid was examined by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy and electrochemical frequency modulation techniques. The surface morphology was analyzed using scanning electron microscope and energy dispersive X-ray techniques. Potentiodynamic polarization curves indicated that the plant extract behaves as cathodic inhibitor. The results indicate that the extract solution of the plant could serve as an effective inhibitor for the corrosion of copper and brass in nitric acid media. As temperature increases, percentage of inhibition decreases. The degree of surface coverage of the adsorbed inhibitor was determined by weight-loss technique, and it was found that the results obeyed the Langmuir adsorption isotherm. ARTICLE HISTORY

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Section: Polarization Curvesmentioning

confidence: 99%

Ceratonia siliqua extractas a green corrosion inhibitor for copper and brass in nitric acid solutions

Fouda

Shalabi

Idress

2015

Green Chemistry Letters and Reviews

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“…Several of the most effective inorganic inhibitors are chromate, nitrite, silicates, carbonates, phosphates and arsenates. Meanwhile, some effective organic inhibitors are amines, sulfur compounds, heterocyclic nitrogen compounds, and some natural compounds [4][5][6][7]. Organic compounds consist of polar groups and heterocyclic.…”

Section: Introductionmentioning

confidence: 99%

The use of morinda citrifolia as a green corrosion inhibitor for low carbon steel in 3.5% NaCl solution

Kusumastuti

Pramana

Soedarsono

2017

AIP Conference Proceedings

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Abstract. The effect and mechanism of green corrosion inhibitor of Morinda Citrifolia (Noni) toward low carbon steel material has been researched. The general background is to develop the cheap and eco-friendly corrosion inhibitor based on components taken from tropical plants that grow +in Indonesia. This research aims to determine the effectiveness of the use of the extracts of noni as green corrosion inhibitor of carbon steel material in aggressive environment. The medium applied for this experiment is 3.5% natrium chloride solution. The variation of the concentration and immersion time duration has been applied as the experimental parameters. All the work was done at room temperature. The corrosion rate was measured by electrochemical polarization method with CMS 600-Gamry instruments and weight loss. The adsorption of inhibitor into the metal surface, which induced bonding formation after immersion was observed by using FTIR method. Inhibition mechanism was observed by polarization curves and fitted by the Langmuir adsorption models. The experimental results show that the higher concentration of inhibitor increasing the inhibition effect. The optimum inhibition is obtained at 3 ppm noni fruit extract, after immersion for about 288 hours. The corrosion rates obtained was 1.385 mpy, with the inhibitor efficiency of 76.92%. The monolayer film is formed coating the surface material as a result of mixed type corrosion inhibitor behavior of Noni. It can be concluded that this green inhibitor is effective to be used for low carbon steel material.

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“…Furthermore, this is the first report of a process of deriving corrosion inhibitor from plants, enabled by the biological approach. Usually only chemical approach has been adopted for deriving corrosion inhibitors from plants, using methanol (40,41), ethanol (23,24,27), water (42,43), hexane (44), and other solvents, which often still produce liquid waste from the process.…”

Section: Introductionmentioning

confidence: 99%

A peony-leaves-derived liquid corrosion inhibitor: protecting carbon steel from NaCl

Nazari

Shihab

Cao

et al. 2017

Green Chemistry Letters and Reviews

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A liquid mixture was developed from waste peony leaves through a zero-waste chemical/biological process. The inhibition effect of different concentrations of peony leaves derived solution (0-3 vol.%, PLS0-3) on C1010 carbon steel in 3.5 wt.% NaCl was investigated over time using electrochemical measurements. Chemical analyses were performed to reveal the main compounds of this inhibitor. Surface analyses together with water contact angle measurements were employed to study the characteristics of the steel surface affected. Semi-empirical calculations with PM3 method were used to find the relationship between molecular structure and inhibiting effect of PLS. The inhibitor was stable over time and its main active ingredients were C 19 H 27 N 4 O 10 P and C 17 H 16 N 3 O 9 P that adsorb onto the steel surface, block cathodic active sites, make the surface hydrophobic, decrease the surface free energy, and facilitate the formation of a passive layer. A good correlation was found between experimentally determined inhibition efficiency and theoretically calculated properties of PLS.ARTICLE HISTORY

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Corrosion inhibition of mild steel by plant extract in dilute HCl medium

Cited by 481 publications

References 26 publications

Ceratonia siliqua extractas a green corrosion inhibitor for copper and brass in nitric acid solutions

Ceratonia siliqua extractas a green corrosion inhibitor for copper and brass in nitric acid solutions

The use of morinda citrifolia as a green corrosion inhibitor for low carbon steel in 3.5% NaCl solution

A peony-leaves-derived liquid corrosion inhibitor: protecting carbon steel from NaCl

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