Anticorrosion performance of electro-deposited epoxy/ amine functionalized graphene oxide nanocomposite coatings

Aghili, Maryam; Yazdi, Mohsen Khodadadi; Ranjbar, Zahra; Jafari, Seyed Hassan

doi:10.1016/j.corsci.2020.109143

Cited by 81 publications

(27 citation statements)

References 48 publications

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“…The impedance value of the low-frequency region in the Bode diagram (Figure 6a−c) could semiquantitatively reflect the total resistance value of coating. 38 The larger the impedance value at the low-frequency end, the better the anticorrosion effect of coating. After 72 h of immersion, the maximum impedance value of ZWO 2.92 was 5.84 kΩ•cm 2 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO_2.92 Heterojunction for Enhanced Corrosion Resistance

et al. 2021

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The heterojunction constructed by tungsten oxide and zinc oxide materials can improve the problem of easy deactivation of electrons, which is a new and effective strategy for realizing anticorrosion. Here, the ZnO/WO 2.92 heterojunction modified by oxygen vacancies (OVs) serving as the photoelectric conversion center was not consumed to provide continuous light-induced protection for steel, and the impedance value was increased by 185.35% compared to that of epoxy resin after 72 h of corrosion. The enhanced anticorrosion activity was due to OV modification leading to oxygen adsorption and electron capture, which inhibited the cathodic corrosion reaction and effectively hindered electron transport. Additionally, the localized surface plasmon resonance effect produced by OVs improved light utilization efficiency and increased electron density, which enabled numerous photoelectrons to gather on the surface of the iron substrate to reduce the corrosion rate of metals. Besides, the cascade effect of the ZnO/WO 2.92 heterojunction promoted the transfer of e − /h + to form an electric field that allowed the directional flow of electrons to inhibit the anode dissolution process. Thus, exploring the corrosion reaction involving OVs and heterojunction structures was of great significance to the development of nonsacrificial and efficient anticorrosion materials.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO_2.92 Heterojunction for Enhanced Corrosion Resistance

et al. 2021

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“…In recent years, electro-deposition has also been used for preparing graphene-based film [51][52][53][54][55][56][57][58]. In the electro-deposition process, the electric field between the two electrodes induces the migration of charged particles and subsequent deposition in a stable suspension [59].…”

Section: Electro-induced Preparationmentioning

confidence: 99%

Graphene-Based Films: Fabrication, Interfacial Modification, and Applications

et al. 2021

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Graphene-based film attracts tremendous interest in many potential applications due to its excellent thermal, electrical, and mechanical properties. This review focused on a critical analysis of fabrication, processing methodology, the interfacial modification approach, and the applications of this novel and new class material. Strong attention was paid to the preparation strategy and interfacial modification approach to improve its mechanical and thermal properties. The overview also discussed the challenges and opportunities regarding its industrial production and the current status of the commercialization. This review showed that blade coating technology is an effective method for industrial mass-produced graphene film with controllable thickness. The synergistic effect of different interface interactions can effectively improve the mechanical properties of graphene-based film. At present, the application of graphene-based film on mobile phones has become an interesting example of the use of graphene. Looking for more application cases is of great significance for the development of graphene-based technology.

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“…Many researchers also confirmed the improvement in the corrosion resistance of neat epoxy coatings due to the incorporation of carbon-based nanocomposites. [20][21][22] However, the complex method of preparation of the carbon-based nanomaterials and subsequent high costs limits their use on a large scale. Consequently, there has been a deliberate interest among researchers to explore various possibilities of developing affordable carbon-based nanomaterials using a simple and costeffective approach that can be adopted on a large-scale.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization, and Evaluation of the Anticorrosion Performance of Submicron/Nanocarbon from Jute Sticks

Basha

Aziz

Maslehuddin

et al. 2021

Chemistry An Asian Journal

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Jute stick, one of the most commonly and abundantly available agricultural waste product, was converted to a value-added submicron/nano jute carbon by using pyrolysis and high-energy ball milling techniques. The submicron/nano jute carbon was characterized using FE-SEM, TEM, EDS, XRD, XPS and Raman spectroscopy. The anticorrosive performance of the submicron/nano jute carbon was investigated through electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP) and salt spray techniques, on mild steel plates coated with a mixture of epoxy resin and the submicron/nano jute carbon. The electrochemical impedance of the steel coated with the composite coating was two orders of magnitudes higher than that of the specimen coated with neat epoxy. Consequently, the corrosion rate of specimens coated with composite coating was 13-20 times higher than that of steel coated with neat epoxy coating. The salt spray results also indicate an improvement in the corrosion resistance performance of the composite coating compared to the neat epoxy. The uniform distribution of the submicron/nano jute carbon particles in the epoxy resin improved the denseness of the composite coating by acting as a barrier against the diffusion of chloride, moisture, and oxygen, thus, improving the corrosion resistance of the developed coating.

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Anticorrosion performance of electro-deposited epoxy/ amine functionalized graphene oxide nanocomposite coatings

Cited by 81 publications

References 48 publications

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO_2.92 Heterojunction for Enhanced Corrosion Resistance

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO_2.92 Heterojunction for Enhanced Corrosion Resistance

Graphene-Based Films: Fabrication, Interfacial Modification, and Applications

Preparation, Characterization, and Evaluation of the Anticorrosion Performance of Submicron/Nanocarbon from Jute Sticks

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Anticorrosion performance of electro-deposited epoxy/ amine functionalized graphene oxide nanocomposite coatings

Cited by 81 publications

References 48 publications

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO2.92 Heterojunction for Enhanced Corrosion Resistance

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO2.92 Heterojunction for Enhanced Corrosion Resistance

Graphene-Based Films: Fabrication, Interfacial Modification, and Applications

Preparation, Characterization, and Evaluation of the Anticorrosion Performance of Submicron/Nanocarbon from Jute Sticks

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Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO_2.92 Heterojunction for Enhanced Corrosion Resistance

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO_2.92 Heterojunction for Enhanced Corrosion Resistance