Electrochemical characterization of aromatic corrosion inhibitors from plant extracts

Fang, Yi; Suganthan, Baviththira; Ramasamy, Ramaraja P.

doi:10.1016/j.jelechem.2019.03.052

Cited by 49 publications

(26 citation statements)

References 44 publications

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“…Semakin tinggi konsentrasi semakin besar kapasitas adsorpsi. Hal ini disebabkan karena pengaruh gaya dorong dari ion logam untuk bergerak menuju ke permukaan dinding sehingga kapasitas adsorpsi tinggi (Fang et al, 2019). Dengan meningkatnya konsentrasi maka akan lebih banyak ion logam yang mengikat gugus fungsi biosorben sehingga kapasitas biosorpsi meningkat (Chaidir et al, 2015).…”

Section: Pengaruh Konsentrasiunclassified

Biosorpsi ion Cd+2 oleh adsorben dari daun nenas (Ananas comosus) teramobilisasi dalam Ca-alginat

et al. 2020

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Section: Pengaruh Konsentrasiunclassified

Biosorpsi ion Cd+2 oleh adsorben dari daun nenas (Ananas comosus) teramobilisasi dalam Ca-alginat

et al. 2020

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“…Metallic materials undergo structural degradation called "corrosion" as a result of their interaction both electrochemically and chemically with their environment (Allaoui et al, 2017;Fang et al, 2019). Corrosion is a phenomenon that harms life from industry until it reaches homes (Xu et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…The use of corrosion inhibitors obtained from plant extracts among all green compounds is important because it is harmless to human health and is of interest for to low environmental toxicity. If we compare the synthetic corrosion inhibitors with the corrosion inhibitors obtained from the plant extract, those obtained from the plant extract are less costly and obtaining is shorter and easier than the inhibitors obtained by synthesizing (Mo et al, 2016;Fang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

A New Inhibitor Approach to the Corrosion of Mild Steel in Acidic Solution with Long-Term Impedance Tests: A New Application Area for Hypnum cupressiforme (Bryophyta)

Özkır

Ezer

2020

Anatolian Bryology

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The most important aspect of this study is that the effect of Hypnum cupressiforme Hedw. which is a bryophyte species as a "green inhibitor" on the corrosion behavior of mild steel in 1.0 M HCl solution at 298 K is being examined for the first time. The inhibitory effect of moss extract was investigated applying the electrochemical impedance spectroscopy (EIS) technique. Nyquist diagrams were performed by EIS to examine the variation of the different concentrations of the extract with some immersion-time parameters. Also, the surface charge of the metal in terms of the inhibition mechanism was determined by the EIS technique and as a result, it was found that the protonated inhibitor molecules were adsorbed directly onto the metal surface. The surface morphology studies of working electrodes were performed using field emission scanning electron microscope (FESEM) and optical metal microscopy techniques. Electrochemical tests and surface analysis studies support each other.

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“…However, most of these inhibitors are toxic 2,3 . Therefore, ecological inhibitors, based on plant extracts, of a non-toxic nature are suitable candidates for replacing synthetic inhibitors because of their abundant sources and low cost [4][5][6][7] . Indeed, the ability of these inhibitors is generally attributed to the presence of secondary metabolites (polyphenols, alkaloids, saponins, etc.)…”

Section: Introductionmentioning

confidence: 99%

Cistus monspeliensis extract as antioxidant and corrosion inhibitor of ordinary steel in 1 M hydrochloric acid medium

Haida¹,

Bakkouche²,

Ouakki³

et al. 2020

Mediterr.J.Chem.,

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The aim of this study is the valorization of the Cistus monspeliensis plant, native to North of Morocco, as antioxidant and corrosion inhibitor. Firstly, the plant is extracted by maceration in a mixture of water/acetone solvents. Phytochemical tests are carried out on the extract obtained. The antioxidant power of Cistus monspeliensis extract is evaluated by two methods: the test of reduction of the free radical DPPH∙ (1,1-diphenyl-2-picryl hydrazyl) and that of Ferric reducing antioxidant power (FRAP). The electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization are used to study the anticorrosion effect of Cistus monspeliensis extract. The results showed that the extract, 27.6% yield, contains phenolic compounds in the form of flavonoids, hydrolysable and condensed tannins, saponins, reducing sugars and glycosides. This extract has an antioxidant capacity similar to that of ascorbic acid with an inhibition concentration of 0.077 mg/mL 0.102 mg/mL for DPPH and FRAP test, respectively. Tafel plots show that the extract is an excellent cathodic inhibitor. The maximum inhibition efficiency of 92 % was obtained with 0.25 g/L of the inhibitor at 298 k. The impedance plot is characterized by a single capacitive loop attributed to the charge transfer process. The results also showed that the inhibitor acts on the surface of the metal principally by adsorption, leading to the formation of a protective film limiting the corrosion of ordinary steel.

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Electrochemical characterization of aromatic corrosion inhibitors from plant extracts

Cited by 49 publications

References 44 publications

Biosorpsi ion Cd+2 oleh adsorben dari daun nenas (Ananas comosus) teramobilisasi dalam Ca-alginat

Biosorpsi ion Cd+2 oleh adsorben dari daun nenas (Ananas comosus) teramobilisasi dalam Ca-alginat

A New Inhibitor Approach to the Corrosion of Mild Steel in Acidic Solution with Long-Term Impedance Tests: A New Application Area for Hypnum cupressiforme (Bryophyta)

Cistus monspeliensis extract as antioxidant and corrosion inhibitor of ordinary steel in 1 M hydrochloric acid medium

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