scholarly journals A comparative study on few-layer graphene production by exfoliation of different starting materials in a low boiling point solvent

FlatChem ◽  
2017 ◽  
Vol 1 ◽  
pp. 74-88 ◽  
Author(s):  
Yasemin Çelik ◽  
Emmanuel Flahaut ◽  
Ender Suvacı
Keyword(s):  
Comparative Study ◽  
Boiling Point ◽  
Layer Graphene ◽  
Graphene Production ◽  
Few Layer Graphene

scholarly journals High voltage electrochemical exfoliation of graphite for high-yield graphene production

RSC Advances ◽  
2019 ◽  
Vol 9 (50) ◽  
pp. 29305-29311 ◽  
Author(s):  
Sarah Roscher ◽  
René Hoffmann ◽  
Mario Prescher ◽  
Peter Knittel ◽  
Oliver Ambacher
Keyword(s):  
High Voltage ◽  
Single Step ◽  
High Yield ◽  
Natural Graphite ◽  
Electrochemical Exfoliation ◽  
Layer Graphene ◽  
Highly Efficient ◽  
Graphene Production ◽  
Few Layer Graphene

We demonstrate a highly efficient, single-step, cathodic exfoliation process of graphite to produce single- to few-layer graphene with a yield of over 70% from natural graphite flakes.

scholarly journals A few-layer graphene for advanced composite PVDF membranes dedicated to water desalination: a comparative study

2020 ◽  
Vol 2 (10) ◽  
pp. 4728-4739
Author(s):  
M. Frappa ◽  
A. E. Del Rio Castillo ◽  
F. Macedonio ◽  
A. Politano ◽  
E. Drioli ◽  
...  
Keyword(s):  
Comparative Study ◽  
Membrane Distillation ◽  
Water Desalination ◽  
Distillation Process ◽  
Nanocomposite Membranes ◽  
Advanced Composite ◽  
Layer Graphene ◽  
Few Layer Graphene

Better-quality few-layer graphene is prepared for the enhanced performance of nanocomposite membranes dedicated to desalination through a membrane distillation process.

Ag-stabilized few-layer graphene dispersions in low boiling point solvents for versatile nonlinear optical applications

Carbon ◽  
2013 ◽  
Vol 62 ◽  
pp. 182-192 ◽  
Author(s):  
Zhenyu Sun ◽  
Ningning Dong ◽  
Kangpeng Wang ◽  
Dennis König ◽  
Tharamani Chikka Nagaiah ◽  
...  
Keyword(s):  
Boiling Point ◽  
Nonlinear Optical ◽  
Layer Graphene ◽  
Optical Applications ◽  
Nonlinear Optical Applications ◽  
Few Layer Graphene

scholarly journals Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1550
Author(s):  
Vineet Kumar ◽  
Anuj Kumar ◽  
Minseok Song ◽  
Dong-Joo Lee ◽  
Sung-Soo Han ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Titanium Dioxide ◽  
Iron Oxide ◽  
Stress Relaxation ◽  
Silicone Rubber ◽  
Room Temperature ◽  
Relaxation Rates ◽  
Layer Graphene ◽  
Few Layer Graphene ◽  
Mechanical Actuation

The increasing demand for polymer composites with novel or improved properties requires novel fillers. To meet the challenges posed, nanofillers such as graphene, carbon nanotubes, and titanium dioxide (TiO2) have been used. In the present work, few-layer graphene (FLG) and iron oxide (Fe3O4) or TiO2 were used as fillers in a room-temperature-vulcanized (RTV) silicone rubber (SR) matrix. Composites were prepared by mixing RTV-SR with nanofillers and then kept for vulcanization at room temperature for 24 h. The RTV-SR composites obtained were characterized with respect to their mechanical, actuation, and magnetic properties. Fourier-transform infrared spectroscopy (FTIR) analysis was performed to investigate the composite raw materials and finished composites, and X-ray photoelectron spectroscopy (XPS) analysis was used to study composite surface elemental compositions. Results showed that mechanical properties were improved by adding fillers, and actuation displacements were dependent on the type of nanofiller used and the applied voltage. Magnetic stress-relaxation also increased with filler amount and stress-relaxation rates decreased when a magnetic field was applied parallel to the deformation axes. Thus, this study showed that the inclusion of iron oxide (Fe3O4) or TiO2 fillers in RTV-SR improves mechanical, actuation, and magnetic properties.

scholarly journals Temperature Dependence of G and D’ Phonons in Monolayer to Few-Layer Graphene with Vacancies

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Mingming Yang ◽  
Longlong Wang ◽  
Xiaofen Qiao ◽  
Yi Liu ◽  
Yufan Liu ◽  
...  
Keyword(s):  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Intrinsic Properties ◽  
Temperature Dependent ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Layer Graphene ◽  
A Value ◽  
Few Layer Graphene

Abstract The defects into the hexagonal network of a sp2-hybridized carbon atom have been demonstrated to have a significant influence on intrinsic properties of graphene systems. In this paper, we presented a study of temperature-dependent Raman spectra of G peak and D’ band at low temperatures from 78 to 318 K in defective monolayer to few-layer graphene induced by ion C+ bombardment under the determination of vacancy uniformity. Defects lead to the increase of the negative temperature coefficient of G peak, with a value almost identical to that of D’ band. However, the variation of frequency and linewidth of G peak with layer number is contrary to D’ band. It derives from the related electron-phonon interaction in G and D’ phonon in the disorder-induced Raman scattering process. Our results are helpful to understand the mechanism of temperature-dependent phonons in graphene-based materials and provide valuable information on thermal properties of defects for the application of graphene-based devices.

Few-layer graphene prepared via microwave irradiation of black sesame for supercapacitor applications

2021 ◽  
Vol 425 ◽  
pp. 130664
Author(s):  
Xinghe Xu ◽  
Shichang Sun ◽  
Juan Luo ◽  
Rui Ma ◽  
Junhao Lin ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Layer Graphene ◽  
Few Layer Graphene ◽  
Supercapacitor Applications
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