Extraction and experimental studies of <i>Citrus aurantifolia</i> as an economical and green corrosion inhibitor for mild steel in acidic media

Haldhar, Rajesh; Prasad, Dwarika; Bhardwaj, Nishant

doi:10.1080/01694243.2019.1585030

Cited by 80 publications

(29 citation statements)

References 26 publications

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“…Figure 16 shows the circuit diagram commonly used for the test, where R s represents solution resistance, CPE represents constant phase elements, and R ct is the charge transfer resistance [58,116]. Thomas [48] explained that double-layer capacitance (C dl ) is abandoned in favor of CPE.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

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

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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.

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Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

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

show abstract

“…In the corrosion field, many studies have been conducted on the inhibitory effects of Citrus aurantifolia. Haldhar et al (2019) used Citrus aurantifolia leaf extract for corrosion inhibition on mild steel in a 0.5 M sulfuric acid solution using weight loss, Tafel and electrochemical impedance spectroscopy (EIS), where the inhibition efficiency was found to be 96.46% at 250mg/l of the extract concentration. Dakhil et al (2018) found that an inhibition efficiency of 81.2% was achieved with 20% (v/v) of the extract in 1 M hydrochloric acid for 3 hours immersion at 25°C for carbon steel.…”

Section: Journal Of Sustainabilitymentioning

confidence: 99%

Citrus Aurantifolia Leaf Extract as a Potential Anti-Corrosion Additive in Alkyd Paint for Mild Steel

Zulkifli¹,

Bahrin²,

Abdullah³

et al. 2021

JSSM

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“…Increasing the concentration of TOE drastically increases the charge transfer www.nature.com/scientificreports www.nature.com/scientificreports/ resistance (by a factor close to 11) while the CPE strongly decreases (from 5.2 to 0.3 µF cm −2 ). This strong decrease is explained by the increase in the thickness of the electrical double layer (due to the surface sorption of TOE extract compounds) 52,53 and/or the decrease in local dielectric constant 17,48,54,55 .…”

Section: Toe Concentration (Mg Lmentioning

confidence: 99%

“…This is another clear evidence of the sorption mechanism. In the case of the use of Citrus aurentifolia extract for inhibiting corrosion of mild steel, Haldar et al 55 reported a shift in the band at 232.3 nm that was attributed to the n-π* transition for organic compounds; the intensity of this band was also strongly decreased. These two changes were assigned to the sorption of inhibitor molecules at the surface of steel sample.…”

Section: Surface Observation and Analysis The Surface Morphology Of mentioning

confidence: 99%

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Deyab

Guibal²

2020

Sci Rep

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Taraxacum officinale extract (toe) has been tested for preventing the corrosion of cooling systems in desalination plants. The inhibition of corrosion effects has been characterized by chemical and electrochemical methods (Mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy) and surface observations. tests on cooling systems were carried out in seawater environment. the presence of toe in the re-circulation loop decreases the corrosion of carbon steel by adsorption of toe compounds on the surface of metal pipes. the optimum toe concentration was reached at 400 mg L −1 and the inhibition efficiency was higher than 94%. TOE allowed increasing the energy barrier of the corrosion process. SEM, FT-IR and UV spectra observations confirmed that TOE prevents corrosion attacks at the surface of the pipes. HPLC analyses identified the presence of saccharides, organic acids, phenol antioxidant and caffeic acid derivatives in TOE, which may be the active promoters of corrosion inhibition. www.nature.com/scientificreports www.nature.com/scientificreports/ R ct cto ct where R ct and R cto are the charge transfer resistances in the presence and absence of TOE, respectively. Compound Concentration (mg L −1 )

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Extraction and experimental studies of Citrus aurantifolia as an economical and green corrosion inhibitor for mild steel in acidic media

Cited by 80 publications

References 26 publications

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

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

Citrus Aurantifolia Leaf Extract as a Potential Anti-Corrosion Additive in Alkyd Paint for Mild Steel

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

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