Eco friendly corrosion inhibitors: Inhibitive action of quinine for corrosion of low carbon steel in 1 m HCl

Awad, Mohamed I.

doi:10.1007/s10800-006-9204-1

Cited by 120 publications

(54 citation statements)

References 35 publications

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“…The values of ∆H* are presented in Table 2. Enthalpy of activation of absolute values lower than 41.86kJmol -l indicates physical adsorption, and values approaching 100 kJmol -1 indicate chemical adsorption [25]. In this study, the values of ∆H* are lower than 41.86 kJmol -1 confirming physical adsorption.…”

Section: Effect Of Temperature and Activation Parameters Of Inhibitiosupporting

confidence: 43%

Investigations of the Inhibition of Aluminum Corrosion in 1 M NaOH Solution by Lupinus varius l. Extract

Irshedat¹,

Nawafleh²,

Bataineh³

et al. 2013

Port. Electrochim. Acta

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The effect of the extract of Lupinus varius l. on corrosion of Al in 1 M NaOH solution using the weight loss technique was investigated. Lupinus varius l. extract inhibited the corrosion of Al in 1 M NaOH solution and the inhibition efficiency increased with increasing the concentration of the extract and decreased with increasing temperature. The adsorption of the inhibitor molecules on Al surface was in accordance with Langmuir and Temkin adsorption isotherms. A first-order kinetic relationship with respect to Al was obtained with and without the extract from the kinetics treatment of the data.

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Section: Effect Of Temperature and Activation Parameters Of Inhibitiosupporting

confidence: 43%

Investigations of the Inhibition of Aluminum Corrosion in 1 M NaOH Solution by Lupinus varius l. Extract

Irshedat¹,

Nawafleh²,

Bataineh³

et al. 2013

Port. Electrochim. Acta

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“…The working electrode was immersed in the test solution for 30 minutes to establish constant signal at open circuit potential. Inhibition efficiency using EIS method was formulated by [7,33] …”

Section: Electrochemical Measurementmentioning

confidence: 99%

Bee Wax Propolis Extract as Eco-Friendly Corrosion Inhibitors for 304SS in Sulfuric Acid

Sanjay

Soenoko

Suprapto

et al. 2015

International Journal of Corrosion

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The inhibition properties of bee wax propolis (BWP) extract on the 304SS in 0.5 M sulfuric acid were conducted using potentiodynamic polarization, EIS, and XRD. Quercetin (2-(3.4-dihydroxy phenyl)-3.5.7-trihydroxy-4H-chromen-4-one) was identified as the main compound in the BWP extract based on FTIR and HPLC analysis. The results showed that the inhibitor could retard the corrosion rate of 304SS in 0.5 M sulfuric acid which reached 97.29% and 91.42% at 2000 ppm based on potentiodynamic polarization and EIS measurement, respectively. The inhibition efficiency decreased with increasing temperature. The inhibition mechanism of BWP extract on the 304SS was physisorption and obeyed Temkin adsorption isotherm equation. The thin protective layer on the 304SS surface was confirmed by XRD.

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“…This denotes that the adsorption is physically while the reverse is usually attributed to chemical adsorption. 17 This conclusion is denoted by the decrease in inhibition efficiency with increasing temperature (Table 1). Similar result has been reported by Okafor et al 18 on the inhibition of acid corrosion of carbon steel using aqueous extract of P. amarus seeds and leaves.…”

Section: Effect Of Temperaturementioning

confidence: 93%

Aqueous Extract of Coriander Seeds as Green Corrosion Inhibitor for 304 Stainless Steel in Hydrochloric Acid Solutions

Fouda¹,

Rashwan²,

Abo-Mosallam³

2014

Journal of the Korean Chemical Society

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ABSTRACT. Corrosion inhibition of 304 stainless steel (SS) in 1 M HCl by aqueous extract of coriander seeds was studied using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Values of inhibition efficiency obtained are dependent upon the concentration of extract and temperature. Generally, inhibition was found to increase with inhibitor concentration, but decrease with temperature. Physical adsorption mechanism has been proposed for the inhibition with Langmuir adsorption isotherm obeyed. Values of activation energy of the inhibited corrosion reaction of 304 SS are greater than the value obtained for the blank. Thermodynamic consideration reveals that adsorption of aqueous extract of coriander seeds 304 SS surface is spontaneous.

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Eco friendly corrosion inhibitors: Inhibitive action of quinine for corrosion of low carbon steel in 1 m HCl

Cited by 120 publications

References 35 publications

Investigations of the Inhibition of Aluminum Corrosion in 1 M NaOH Solution by Lupinus varius l. Extract

Investigations of the Inhibition of Aluminum Corrosion in 1 M NaOH Solution by Lupinus varius l. Extract

Bee Wax Propolis Extract as Eco-Friendly Corrosion Inhibitors for 304SS in Sulfuric Acid

Aqueous Extract of Coriander Seeds as Green Corrosion Inhibitor for 304 Stainless Steel in Hydrochloric Acid Solutions

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