Electrochemical exfoliation of graphene using dual graphite electrodes by switching voltage and green molten salt electrolyte

Alshamkhani, Maher T.; Lahijani, Pooya; Lee, Keat Teong; Mohamed, Abdul Rahman

doi:10.1016/j.ceramint.2022.04.268

Cited by 15 publications

(3 citation statements)

References 59 publications

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“…Atomic force microscopy (AFM) study (Figure 5ab) provided direct evidence for GO lamellar thickness (Alshamkhani et al, 2022). As observed in Figure 5a, the self-made GO nano-material was a large two-dimensional structure with a size of 2-7 μm and a thickness of 0.6-1.2 nm, which was close to a single or few layers.…”

Section: Chemical Stucture and Morphology Analyses Of The Go-opd/wpu ...mentioning

confidence: 79%

Cross-linked graphene oxide framework to enhance pervaporation separate property of waterborne polyurethane in food packaging materials

2023

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In order to improve separating aromatic/aliphatic group in adhesives or solvents of food packaging materials by pervaporation, an across linked graphene oxide (GO) framework were incorporated into waterborne polyurethane (WPU) membrane. The improved benzene solubility and expanded interlayer pathway of modified membrane have been gained based on three different reduced graphene oxide. Compared to P-phenylenediamine (PPD) and ethane-diamine (EDA) reducing agents, O-phenylenediamine (OPD) showed a relatively mild reducing ability and allowed GO to form a layer-to-layer lamella in the WPU matrix easily. When the dose of GO-OPD was 0.03%, the flux of GO-OPD/WPU membrane was 1.58 times of neat WPU or GO/WPU membranes, while the separation factor was slightly improved. The GO-OPD /WPU membrane also maintained good stability in the continuous pervaporation process of 2700 min.

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Section: Chemical Stucture and Morphology Analyses Of The Go-opd/wpu ...mentioning

confidence: 79%

Cross-linked graphene oxide framework to enhance pervaporation separate property of waterborne polyurethane in food packaging materials

2023

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“…Alshamkhani et al, (2022) prepared the graphene using switching voltage electrochemical exfoliation, and in their research, they found that the efficiency of produced graphene is greater when the switching voltage is applied through the electrode. In addition, the produced samples present better conductivity, with the application of switching voltage [83]. Pingale et al synthesized graphene by using ultrasonic-assisted electrochemical exfoliation of graphite.…”

Section: Electrochemical Exfoliation Methodsmentioning

confidence: 99%

A Review on Properties and Environmental Applications of Graphene and Its Derivative-Based Composites

et al. 2023

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Graphene-based materials have gained a lot of scientific interest in the research era of modern technology, which can be quite flexible. Graphene has become popular as a potential material for the manufacture of a wide range of technologies due to its remarkable electrical, mechanical, and optical traits. Due to these excellent characteristics, the derivatives of graphene can be functionalized in various applications including environmental, medical, electronic, defence applications, and many more. In this review paper, we discussed the different synthesis methods for the extraction of graphene and its derivatives. The different traits of graphene and its derivatives such as structural, mechanical, and optical were also discussed. An extensive literature review on the application of graphene-based composites is presented in this work. We also outlined graphene’s potential in the realm of environmental purification through different techniques such as filtration, adsorption, and photocatalysis. Lastly, the challenges and opportunities of graphene and its derivatives for advanced environmental applications were reported.

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“…The byproduct of this process was hydrogen, which helped to separate the single graphene layers from each other. A similar method based on the switching voltage technique and eutectic molten salts of NaOH and KOH was applied for graphite exfoliation by Alshamkhani et al [ 26 ]. The third technique is an electrochemical method based on the usage of a liquid electrolyte and direct current [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Electrochemical Method of Obtaining Graphene Nanoplatelets (GNPs)

et al. 2023

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Graphene nanoplatelets (GNPs) were prepared using the electrolytic exfoliation method on graphite foil in an ammonium sulfate solution. A series of experiments were conducted in order to optimize the production of the flakes by varying the pH of the solution, applied voltage and current, duration of electrolysis, temperature in the electrolytic system, and type and duration of the ultrasound interaction. The quality of the produced graphene nanoplatelets was analyzed using X-ray diffraction, Raman and IR spectroscopy, and TEM.

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Electrochemical exfoliation of graphene using dual graphite electrodes by switching voltage and green molten salt electrolyte

Cited by 15 publications

References 59 publications

Cross-linked graphene oxide framework to enhance pervaporation separate property of waterborne polyurethane in food packaging materials

Cross-linked graphene oxide framework to enhance pervaporation separate property of waterborne polyurethane in food packaging materials

A Review on Properties and Environmental Applications of Graphene and Its Derivative-Based Composites

Optimization of the Electrochemical Method of Obtaining Graphene Nanoplatelets (GNPs)

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