Development of metal-organic framework (MOF) decorated graphene oxide nanoplatforms for anti-corrosion epoxy coatings

Ramezanzadeh, Mohammad; Ramezanzadeh, Bahram; Mahdavian, M.; Bahlakeh, Ghasem

doi:10.1016/j.carbon.2020.01.082

Cited by 313 publications

(73 citation statements)

References 78 publications

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“…R s , R ct1 , R ct2 , R t , and log |Z| 100 mHZ correspond to the ohmic serial resistance, charge transfer resistance of the counter electrode/electrolyte interface (R ct1 ), semiconductor/Qd/Dye/electrolyte interface (R ct2 ) total resistance (R t = R ct1 + R ct2 ), and impedance at low frequency, respectively. The Nyquist and Bode plots are presented in Figures 17 and 18, respectively 73‐76 …”

Section: Resultsmentioning

confidence: 99%

Effect of zinc oxide quantum dots on the photovoltaic properties of natural dye‐sensitized solar cells

2020

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Summary Natural dyes are used as solar‐sensitive materials to construct environmentally friendly solar cells. The low efficiency of natural dyes is one of their limitations in solar cells. To solve this problem, zinc oxide quantum dots have been used as an improving agent in the development of environmentally friendly solar cells. In the current study, natural dyes were extracted from Cytisus, Alcea rosea, and Roselle flowers using the solvent method. Then, the zinc oxide quantum dots (ZnO QDs) were synthesized through co‐precipitation in ethanol solutions. Subsequently, dye‐sensitized solar cells (DSSC) were made using the extracted dyes, and zinc oxide quantum dots were used to enhance the efficiency of the solar cells. Ultraviolet‐visible (UV‐Vis) spectrophotometry and Fourier transform infrared (FTIR) spectroscopy were used to study the absorption spectra of the extracted dyes and their functional groups. X‐ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), and photoluminescence (PL) methods were used to characterize the crystal structure, size, particle size distribution, and emission intensity of the synthesized quantum dots, respectively. TEM, DLS, and PL analyses showed that the particle size of the quantum dots in the optimized sample was about 3 nm, and the maximum emission intensity was equal to 1550 at 520 nm. Field emission scanning electron microscopy (FESEM) and energy dispersive X‐ray spectroscopy (EDS) were used to determine glass, fluorine‐doped tin oxide (FTO), TiO2, ZnO QDs, and dye layers separately. Electrochemical impedance spectroscopy (EIS) was used to evaluate the resistance of solar cells. The properties of the modified solar cells were also investigated using the photovoltaic and incident photon to current conversion efficiency (IPCE) methods. The efficiency of the solar cell was equal to 0.983% with an open‐circuit voltage (Voc) of 0.648 (V), short‐circuit current (Jsc) of 2.251 (mA/cm2), fill factor (FF) of 0.647, and IPCE value of 21.662%. The results indicated that the modified solar cells performed better than the unmodified cells, and the use of quantum dots increased the efficiency of environmentally friendly solar cells by 17%.

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Section: Resultsmentioning

confidence: 99%

Effect of zinc oxide quantum dots on the photovoltaic properties of natural dye‐sensitized solar cells

2020

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“…The incorporation of metallic, porous metal oxide, graphene, and carbon nanotubes within polymeric matrices are explored and explained as active corrosion inhibition [147,148]. Such an active corrosion retard mechanism is based on the electroactive properties of metals, graphene, carbon nanotubes, or on their ability to serve as reservoirs for active corrosion inhibitors such as porous silicon oxide, layered double hydroxides, and halloysite [149,150].…”

Section: Nanofabrication Aspects Of Green Procedures In Enhancing Coatings Multifunctionality (Green Corrosion Inhibitors Biomimetic Coatmentioning

confidence: 99%

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

2021

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Starting with a description of the meaning of sustainable coating nowadays, this review presents a selection of methods for sustainable coatings manufacture using raw materials, saving energy and costs. This selection creates an introduction for the coatings performances of intensively investigated coated alloys and their multifunctionality. There are many examples and EU recommendations to be discussed, and we especially chose to introduce sustainable coatings with both industrial and medical functions, such as bioinspired films and coatings on high-entropy alloys, biodegradable metallic alloys, etc. A special focus is on nanotechnology and nanomaterials in green procedures, enhancing coatings’ multifunctionality, introducing green corrosion inhibitors, smart additives, and coatings based on superhydrophobicity. The conclusions and future perspectives of sustainable and multifunctional coatings, as expressions of sustainable advanced materials, are based on important motivations of such studies.

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“…Ramezanzadeh et al [87] developed a nanoplatform with superior anti-corrosive action built up through a one-pot synthesis method of zeolitic imidazolate framework-8 (ZIF-8) on the graphene oxide sheets. The particles applied on a steel sample showed a corrosion inhibition efficiency of about 79% when immersed in a NaCl solution by polarization tests.…”

Section: Macromolecular Compounds Modification Of Graphene Oxidementioning

confidence: 99%

Recent Advances in Graphene Oxide-Based Anticorrosive Coatings: An Overview

Necolau

Pandele

2020

Coatings

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The present review outlines the most recent advance in the field of anticorrosive coatings based on graphene oxide nanostructures as active filler. This carbonaceous material was extensively used in the last few years due to its remarkable assets and proved to have a significant contribution to composite materials. Concerning the graphene-based coatings, the synthesis methods, protective function, anticorrosion mechanism, feasible problems, and some methods to improve the overall properties were highlighted. Regarding the contribution of the nanostructure used to improve the capability of the material, several modification strategies for graphene oxide along with the synergistic effect exhibited when functionalized with other compounds were mainly discussed.

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Development of metal-organic framework (MOF) decorated graphene oxide nanoplatforms for anti-corrosion epoxy coatings

Cited by 313 publications

References 78 publications

Effect of zinc oxide quantum dots on the photovoltaic properties of natural dye‐sensitized solar cells

Effect of zinc oxide quantum dots on the photovoltaic properties of natural dye‐sensitized solar cells

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

Recent Advances in Graphene Oxide-Based Anticorrosive Coatings: An Overview

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