Corrosion Control of Copper in Nitric Acid Solution using Chenopodium Extract

Motawea, M. M.

doi:10.20964/2019.02.29

Cited by 54 publications

(14 citation statements)

References 36 publications

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“…This technology is fast and not destructive. Corrosion current density (icorr), causal factors CF2 and CF3, and Tafel slopes (β a and β c ) were determined through the higher peaks [38]. In electrochemical tests, the device utilized in the EFM methods was Gamry Potentiostat/Galvanostat/ZRA (PCI4-G750).…”

Section: Electrochemical Frequency Modulation (Efm) Testsmentioning

confidence: 99%

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

et al. 2021

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This research demonstrates the effect of some amide compounds (1 and 2) as corrosion inhibitors on C-steel in 1.0 M of hydrochloric solutions utilizing mass reduction studies, electrochemical [potentiodynamic (PP), AC impedance measurements (EIS), electrochemical frequency modulation] techniques, and surface checks were used to illustrate the importance of amide compounds to the corrosion protection process of C-steel. The tests displayed that the inhibition efficiency (IE%) augmented with increase in amide dose but reduced with growth of temperature. The highest inhibition efficiency is 99% for compound (1) and 98.8% for compound (2) at maximum dose tested (50 µM) by polarization method. PP data show that these compounds affect both cathodic and anodic processes (i.e. mixed type) and were adsorption on the carbon steel obeying Langmuir adsorption isotherm. The EIS results indicate that the changes in impedance parameters are related to the adsorption of amides on the alloy surface. Scanning of electron microscopy, energy transmitted X-ray—Atomic force microscopy studied the morphology of inhibited C-steel. Graphic abstract

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Section: Electrochemical Frequency Modulation (Efm) Testsmentioning

confidence: 99%

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

et al. 2021

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“…AFM is a very important technique which gives details about the surface morphology. The using of such technique is useful for corrosion research since it provides much information about the roughness of the examined surface (Motawe et al, 2019). Fig.…”

Section: Resultsmentioning

confidence: 99%

New Biodegradable Nonionic‐Anionic Surfactants Based on Different Fatty Alcohols as Corrosion Inhibitors for Aluminum in Acidic Medium

Hefnawy

Allah

Elhamed

2020

J Surfact & Detergents

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Two series of eco‐friendly nonionic anionic surfactants based on itaconic acid and 1, 6 hexane diol were synthesized. The chemical structures of the prepared surfactant were confirmed by FTIR and 1H NMR spectroscopy. The prepared surfactants were evaluated to prevent the corrosion of aluminum in 1.0 M HCl solution by electrochemical and chemical methods. The data obtained showed that the prepared compounds have good inhibition efficiency (IE%) even at 10−5 M concentrations and act as mixed‐type inhibitors, they do not affect the mechanism of the electrode processes, as well as the IE% increase by increasing the concentrations of the inhibitors, immersion time, and hydrophilic chain length. The high inhibition efficiency is due to the adsorption of the inhibitors molecules on the metal surface and the formation of a protective film. The surface activities of these compounds were also investigated and were correlated to their inhibition efficiencies and chemical structure. Through studying biodegradability of the synthesized surfactants we find that they are readily biodegradable in the environment and thus they are considered as eco‐friendly corrosion inhibitors. Finally, the effect of the addition of these compounds on the aluminum surface was identified by atomic force microscopy (AFM) technique.

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“…It is possible to obtain important data about the kinetics of the cathodic and anodic reactions using the PDP technology [34]. Figure 1 demonstrations typical anodic and cathodic PDP diagrams for Al in 1M HCl in attendance and absence of varying Candesartan drug doses, the following parameters were obtained: electrochemical corrosion potential (E corr ), corrosion current density (I corr ), polarization resistance (R p ) and cathodic and anode Tafel constants (β c , β a ), respectively.…”

Section: Potentiodynamic Polarization (Pdp)) Techniquementioning

confidence: 99%

Candesartan: A pharmaceutical product as effective corrosion inhibitor for aluminum in acidic solution

Aziz¹,

Idress²,

Atia³

et al. 2021

Zaštita materijala

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The corrosion performance of aluminum in 1 M hydrochloric acid solution in the existence and absence of Candesartan drug was examined utilizing, potentiodynamic polarization (PDP) and AC impedance (EIS) tests. It was found that the inhibition efficacy (%IE) of Candesartan drug was influenced by its doses and temperature and reached to 92.9% at 40x10-6 M, 30oC. The adsorption isotherm agreed with Langmuir model. From Tafel data the investigated Candesartan drug acts as mixed kind inhibitor. The influence of temperature on the rate of dissolution and the thermodynamic parameters in the existence and absence of Candesartan drug were also, studied and explained. All tests gave similar results.

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Corrosion Control of Copper in Nitric Acid Solution using Chenopodium Extract

Cited by 54 publications

References 36 publications

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

Niclosamide and dichlorphenamide: new and effective corrosion inhibitors for carbon steel in 1M HCl solution

New Biodegradable Nonionic‐Anionic Surfactants Based on Different Fatty Alcohols as Corrosion Inhibitors for Aluminum in Acidic Medium

Candesartan: A pharmaceutical product as effective corrosion inhibitor for aluminum in acidic solution

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