Experimental and computational studies of Nicotiana tabacum leaves extract as green corrosion inhibitor for mild steel in acidic medium

Bhawsar, Jeetendra; Jain, Preeti

doi:10.1016/j.aej.2015.03.022

Cited by 136 publications

(44 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Extract molecules get adsorbed at the surface of MS and there by prevent the metallic dissolution. Formation of the protective layer on the surface of mild steel boost the charge transfer resistance and diminish the double layer capacitance [44]. It is clear from the Nyquist's plots ( Figure 6) that charge transfer resistance and inhibitor efficiency increase with inhibitor concentration.…”

Section: Eis Measurementsmentioning

confidence: 81%

Corrosion Inhibitive and Adsorption Behaviour of Methanolic Extracts of Adansonia digitata (Baobab) Fruit Pulp and Seeds for Mild Steel in 1.0 M H2SO4

Karungamye¹,

Murthy²

2017

IOSR JAC

View full text Add to dashboard Cite

Section: Eis Measurementsmentioning

confidence: 81%

Corrosion Inhibitive and Adsorption Behaviour of Methanolic Extracts of Adansonia digitata (Baobab) Fruit Pulp and Seeds for Mild Steel in 1.0 M H2SO4

Karungamye¹,

Murthy²

2017

IOSR JAC

View full text Add to dashboard Cite

“…It is important to mention that nicotine and its derivatives have widely presented in plant extracts particularly in the extracts of tobacco and kola trees. Therefore, their extracts have also been evaluated as effective corrosion inhibitors for metals and alloys [82][83][84][85][86][87]. Informations related to the pyridine based alkaloids as corrosion inhibitors are given in Table 1.…”

Section: Pyridine Based Alkaloids As Corrosion Inhibitorsmentioning

confidence: 99%

Alkaloids as green and environmental benign corrosion inhibitors: An overview

2019

Int. J. Corros. Scale Inhib.

View full text Add to dashboard Cite

Alkaloids are naturally occurring nitrogen containing organic bases that possess diverse and significant physiological effects on animals and humans. They are mostly derived from the plants. Because of their natural and biological origin, they (alkaloids) are considered as environmental benign alternatives to be used as corrosion inhibitors at the place of traditional and toxic synthetic corrosion inhibitors. Numerous alkaloids have been employed as effective corrosion inhibitors for metals and alloys in different electrolytic media. It has been established that alkaloid molecules are associated with extensive conjugation in the form of non-bonding and π-elections through which they can interact strongly and inhibit corrosion efficiently. Present review article features the collection of reports published on the topic alkaloids as corrosion inhibitors. In this review article, we also described the corrosion and its adverse effect, mechanism of corrosion and corrosion inhibition by organic corrosion inhibitors (including alkaloids) and factors affecting the inhibition property of corrosion inhibitors. Literature study suggests that most of the alkaloids are soluble in the polar electrolytic media and thereby behave as good corrosion inhibitors. Present review article describes the inhibition effect of several classes of alkaloids such as pyridine, purine and indole derivatives that have been used previously. Chemical structures alkaloids and their mode of adsorption and interactions with the metallic surface, nature of metal and electrolyte and related salient features have also been tabulated in the review.

show abstract

“…The study leads to the determination of possible interaction and adsorption efficiencies of the inhibitor molecules on Al, without the use of actual, possibly toxic chemicals. Previous research showed that density functional theory (DFT) along with Monte Carlo simulations are powerful approaches for developing an understanding of the interaction between metal surfaces and inhibitor molecules …”

Section: Introductionmentioning

confidence: 99%

Experimental and computational evaluation of illicium verum as a novel eco‐friendly corrosion inhibitor for aluminium

Ladha

Shah

Ghelichkhah

et al. 2017

Materials & Corrosion

View full text Add to dashboard Cite

Illicium verum extract is investigated as a corrosion inhibitor of aluminium in the presence of an acid medium using gravimetric and impedance techniques. The gravimetric results reveal that the adsorption of inhibitor on the metal surface is physisorption. The impedance measurements are used to interpret the electrochemical process occurring at the interface of aluminium and corrosive medium. The surface characteristics of aluminium are evaluated using scanning electron microscopy-energy dispersive X-ray spectroscopy. The percentage composition of chemical constituents present in the extract is obtained using gas chromatographymass spectrometry and E-anethole is found to be the main chemical component. The interaction between the chemical constituents or inhibitor molecules and the metal surface are evaluated using Monte Carlo simulation. The determination of electron density on the inhibitor molecules is performed using density functional theory. The results from this respective study demonstrate good inhibitive properties of the illicium verum extract towards the corrosion of aluminium in concentrated hydrochloric acid solution. K E Y W O R D Saluminium, corrosion inhibition, illicium verum extract, Monte Carlo simulation, electrochemical impedance spectroscopy 1 | INTRODUCTION Aluminium (Al) and its alloys are widely used, in the field of automotive, and aerospace engineering, packaging, and in other mechanical and engineering industries due to their lightweight, low cost, good mechanical strength and corrosion resistive properties. Al is resistant to corrosion due to the formation of stable aluminium oxide protective film over its surface in the presence of oxygen. However, the metal is corrosion resistant for engineering purposes only within the pH range of 4.5-8.5. [1] As the pH range is disturbed above or below this range, the metal undergoes rapid corrosion. During pickling and etching processes, Al comes into contact of acid solution having pH ranging between 1 and 3, which causes significant loss of the metal due to dissolution to form Al +3 . For pH, greater than 8.5, Al dissolves to form [Al(OH) 4 ] − . To reduce the corrosion rate of Al, appropriate inhibitors can be used in the pickling and etching solutions. [2][3][4][5] Inhibitors protect the metal by adsorbing onto the surface to form an adsorbed, dielectric barrier between the metal and the solution. As per the literature, the presence of hetero atoms and π-electrons in an inhibitor molecule is the basic criteria for determining good inhibitor behaviour. [6] There are various experimental findings to support this position, such as studies

show abstract

Experimental and computational studies of Nicotiana tabacum leaves extract as green corrosion inhibitor for mild steel in acidic medium

Cited by 136 publications

References 12 publications

Corrosion Inhibitive and Adsorption Behaviour of Methanolic Extracts of Adansonia digitata (Baobab) Fruit Pulp and Seeds for Mild Steel in 1.0 M H2SO4

Corrosion Inhibitive and Adsorption Behaviour of Methanolic Extracts of Adansonia digitata (Baobab) Fruit Pulp and Seeds for Mild Steel in 1.0 M H2SO4

Alkaloids as green and environmental benign corrosion inhibitors: An overview

Experimental and computational evaluation of illicium verum as a novel eco‐friendly corrosion inhibitor for aluminium

Contact Info

Product

Resources

About