Corrosion inhibition effect of Aloe Vera gel: Gravimetric and electrochemical study

Singh, Ashish Kumar; Mohapatra, Sushmita; Pani, Balaram

doi:10.1016/j.jiec.2015.10.014

Cited by 129 publications

(53 citation statements)

References 39 publications

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“…The KF and 1/n are defined as Freundlich constants, where KF is the adsorption capacity, and 1/n represents the adsorption intensity. 15 There was a reasonable linear adsorption isotherm when log Qe was plotted versus log Ce as shown in Figure-5(c). The correlation coefficient was 0.9847, and the values of KF was -1.93, and n = 1.34.…”

Section: Inhibitive Effect Of Atenolol Atheel H Alwash Et Almentioning

confidence: 70%

Inhibitive Effect of Atenolol on the Corrosion of Zinc in Hydrochloric Acid

2017

RJC

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Herein, we report the using of atenolol drug as a green corrosion inhibitor for zinc metal. Corrosion inhibitory effect of atenolol on zinc in 1M HCl was explored using the gravimetric method. The findings revealed that atenolol inhibited zinc corrosion in HCl solution and corrosion rate decreased with increasing the atenolol concentration. The optimum surface coverage was determined as 0.93 at 500 ppm atenolol concentration. Chemical computations were exploited to determine the electronic characteristics of atenolol such as highest occupied molecular orbital energy and lowest unoccupied molecular orbital energy (HOMO and LUMO, respectively). These important parameters obtained and elucidated which also confirmed the experimental findings. The findings (experimental and computational) demonstrated that the corrosion inhibition capacity increased with increasing the EHOMO value and decreasing the ELUMO value.

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Section: Inhibitive Effect Of Atenolol Atheel H Alwash Et Almentioning

confidence: 70%

Inhibitive Effect of Atenolol on the Corrosion of Zinc in Hydrochloric Acid

2017

RJC

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“…Electrochemical plots were recorded with applied potential E = E corr ± 200 mV, and a scan rate of 1.0 mV s -1 [29][30]. Tafel curves were extrapolated to obtain corrosion current densities (i corr ), corrosion potential and corrosion rate [31]. The inhibition efficiency was calculated from the measured i corr values using the following formulas [32] [33].…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

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

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“…The flesh of leaf of Aloe vera L. has been reported to be used in the treatment of different ailments [15]. However, literature survey reveals that less study has been carried out on the inhibitive effects of leaf gel of Aloe vera L. on corrosion of mild steel in 5.0 M HCl medium [16]. In continuation to our studies [17,18], the present study aims to gain some insight into the corrosion of mild steel in 5.0 HCl in the presence of Aloe vera L. as a green corrosion inhibitor.…”

Section: Introductionmentioning

confidence: 99%

Aloe vera L. as Green Corrosion Inhibitor for Mild Steel in 5.0 M Hydrochloric Acid Solution

Kumar¹,

Yadav²

2018

Asian J. Chem.

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The leaf gel of Aloe vera L. was examined for its anti-corrosion properties for mild steel in 5.0 M hydrochloric acid as corroding solution by using different techniques like weight loss, gasometric, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. Aloe vera L. extract is selected for this study in view of its rich source of organic molecules. The percentage corrosion inhibition efficiency (PCIE) is found to increase with increase in concentration of Aloe vera L. i.e. from 0.1 to 4.0 g/L. Electrochemical experiments confirms that Aloe vera L. acts as a mixed-type green corrosion inhibitor. The activation parameters obtained from corrosion experiments showed that the inhibitor is adsorbed by both physisorption and chemisorption method. Scanning electron microscopy (SEM) and trinocular inverted metallurgical research microscopy study confirms the physisorption adsorption of Aloe vera L. molecules on the surface of mild steel. 97 % corrosion inhibition efficiency was shown by 4 g/L of Aloe vera L. in 5 M HCl solution for mild steel.

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Corrosion inhibition effect of Aloe Vera gel: Gravimetric and electrochemical study

Cited by 129 publications

References 39 publications

Inhibitive Effect of Atenolol on the Corrosion of Zinc in Hydrochloric Acid

Inhibitive Effect of Atenolol on the Corrosion of Zinc in Hydrochloric Acid

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

Aloe vera L. as Green Corrosion Inhibitor for Mild Steel in 5.0 M Hydrochloric Acid Solution

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