The effect of graphene oxide nanosheets (GONSs) and graphene oxide quantum dots (GOQDs) on corrosion resistance enhancement of Ni–Fe nanocomposite coatings

Mohammadpour, Zahra; Zare, Hamid R.

doi:10.1007/s11837-020-04244-y

Cited by 10 publications

(6 citation statements)

References 38 publications

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“…In this equation, J corr represents the corrosion current density, and E.W. and d are the equivalent weight and the density of the SS substrate, respectively [48–50] . According to the data obtained from Tafel plots (Table 1), the corrosion phenomenon in the presence of the 3‐AT inhibitor causes a change in corrosion parameters.…”

Section: Resultsmentioning

confidence: 99%

“…and d are the equivalent weight and the density of the SS substrate, respectively. [48][49][50] According to the data obtained from Tafel plots (Table 1), the corrosion phenomenon in the presence of the 3-AT inhibitor causes a change in corrosion parameters. The data in Table 1 indicate that the corrosion potential of SS shifts to the less negative values in the presence of 3-AT.…”

Section: Corrosion Inhibition Behavior Of Pure 3-at Compoundmentioning

confidence: 99%

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Improvement of Anti‐Corrosion Performance of a Cu‐Ni Bimetallic Organic Framework Smart Coating Using Amino‐Substitution Triazole

et al. 2023

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Section: Resultsmentioning

confidence: 99%

Section: Corrosion Inhibition Behavior Of Pure 3-at Compoundmentioning

confidence: 99%

Improvement of Anti‐Corrosion Performance of a Cu‐Ni Bimetallic Organic Framework Smart Coating Using Amino‐Substitution Triazole

et al. 2023

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“…In this equation, “E.W.” and “d” represent the equivalent weight and the density of each coating, respectively [28] . Corrosion current density (j corr ) is obtained using the equation

{{{\rm i}}_{{\rm c}{\rm o}{\rm r}{\rm r}}/{\rm A}}

.…”

Section: Resultsmentioning

confidence: 99%

“…and "d" represent the equivalent weight and the density of each coating, respectively. [28] Corrosion current density (j corr ) is obtained using the equation i corr =A. The formula (2) was used to calculate the inhibitory efficiency factor.…”

Section: Characterization Of Metal-organic Framework Cu-btc and Cur@c...mentioning

confidence: 99%

Fabrication of a Curcumin@Cu‐BTC MOF Smart Anti‐Corrosion Coating for Copper

Dehghan‐Chenar,

Zare,

Mohammadpour

2023

ChemistrySelect

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The curcumin@Cu(II)‐benzene‐1,3,5‐tricarboxylate metal‐organic framework (Cur@Cu‐BTC MOF) coating, as a pH‐sensitive smart anti‐corrosion coating, has been synthesized by encapsulating Cur, as a green inhibitor, in Cu‐BTC MOF. The characteristics of the coating were investigated by scanning electron microscope (SEM) images, energy dispersive X‐ray spectroscopy (EDS), elemental scattering map, FTIR spectroscopy and X‐ray diffraction (XRD) patterns. Corrosion parameters of Cur@Cu‐BTC MOF smart coating in 3.5 % NaCl corrosive solution were investigated using potentiodynamic polarization (Tafel) plots and electrochemical impedance spectroscopy (EIS). Indeed, curcumin loading into Cu‐BTC MOF makes the coating more compact. The inhibition efficiency of Cur@Cu‐BTC MOF coating is 72.57 %. Also, when curcumin is loaded into Cu‐BTC MOF, its consumption is about 6 times lower than using it directly as an inhibitor. Also, the anti‐corrosion performance of the smart coating was measured in different immersion times in 3.5 % NaCl solution. Using UV‐vis spectrometry, it was found that the synthesized Cur@Cu‐BTC MOF nanocapsules have a loading capacity of 16.6 % for curcumin. Cur@Cu‐BTC MOF acts as a smart coating and responds to the decreasing of the local pH caused by the corrosion reaction. Encapsulated curcumin is released in response to the pH stimuli and acts as a corrosion inhibitor.

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“…E corr and J corr are obtained from the intersection of the two Tafel plots. The CR is calculated from the following equation …”

Section: Resultsmentioning

confidence: 99%

Fabrication of a pH-Sensitive Epoxy Nanocomposite Coating Based on a Zn-BTC Metal–Organic Framework Containing Benzotriazole as a Smart Corrosion Inhibitor

Mohammadpour

Zare

2021

Crystal Growth & Design

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In this study, a pH-sensitive Epoxy/BTA@Zn-BTC smart anticorrosion nanocomposite coating was fabricated by the encapsulation of a benzotriazole (BTA) corrosion inhibitor in a Zn-BTC metal−organic framework (MOF). The corrosion process of the coating was investigated for different durations of storing the coating in a corrosive solution of 3.5 wt % NaCl using potentiodynamic polarization (Tafel) plots and electrochemical impedance spectroscopy. The synthesized BTA@Zn-BTC nanocapsules have a loading capacity of 16.5% for BTA. The BTA encapsulated in Zn-BTC MOF is released as the corrosion zone becomes acidic, and it serves as a corrosion inhibitor. The released BTA inhibitor proved to have an inhibition efficiency of 98.8% to protect aluminum against corrosion in the corrosive solution after 3 days. A possible mechanism has been presented for the formation of a protective film in this process. It is argued that in the active areas of corrosion on the metal surface the local pH decreases and the H + ions produced in the corrosion reaction rapidly penetrate into the BTA@Zn-BTC nanocapsules, releasing the BTA inhibitor. Then, the released inhibitor forms a dense barrier in the corrosion area to decrease the corrosion rate. As found in this study, the durability of this smart coating is significantly prolonged in a 3.5 wt % NaCl solution.

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The effect of graphene oxide nanosheets (GONSs) and graphene oxide quantum dots (GOQDs) on corrosion resistance enhancement of Ni–Fe nanocomposite coatings

Cited by 10 publications

References 38 publications

Improvement of Anti‐Corrosion Performance of a Cu‐Ni Bimetallic Organic Framework Smart Coating Using Amino‐Substitution Triazole

Improvement of Anti‐Corrosion Performance of a Cu‐Ni Bimetallic Organic Framework Smart Coating Using Amino‐Substitution Triazole

Fabrication of a Curcumin@Cu‐BTC MOF Smart Anti‐Corrosion Coating for Copper

Fabrication of a pH-Sensitive Epoxy Nanocomposite Coating Based on a Zn-BTC Metal–Organic Framework Containing Benzotriazole as a Smart Corrosion Inhibitor

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