scholarly journals Molecular Dynamics Study of the Pore Formation in Single Layer Graphene Oxide by Thermal Reducing Process

2021 ◽  
Author(s):  
Federico Raffone ◽  
Filippo Savazzi ◽  
Giancarlo Cicero
Keyword(s):  
Molecular Dynamics ◽  
Graphene Oxide ◽  
Water Permeability ◽  
Pore Formation ◽  
Single Layer ◽  
High Water ◽  
Water Desalination ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Nanoporous Graphene

Nanoporous graphene is considered the next generation material for reverse osmosis water desalination providing both high water permeability and almost complete salt rejection. The main problem with graphene is the...

The effect of Nanopores Geometry on Desalination of Single-layer Graphene-based Membranes: A Molecular Dynamics Study

2021 ◽  
pp. 116749
Author(s):  
Amirhossein Bagheri Sarvestani ◽  
Alireza Chogani ◽  
Maryam Shariat ◽  
Ali Moosavi ◽  
Hamid Kariminasab
Keyword(s):  
Molecular Dynamics ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene

Effects of single layer graphene and graphene oxide modification on the properties of phthalocyanine blue pigments

2020 ◽  
Vol 180 ◽  
pp. 108449 ◽  
Author(s):  
Dongjun Lv ◽  
Hsiu-Sun Sung ◽  
Xiujing Li ◽  
Xia Zhang ◽  
Zheng Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene

scholarly journals A Molecular Dynamics Study on Wrinkles in Graphene with Simply Supported Boundary under In-Plane Shear

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Jianzhang Huang ◽  
Qiang Han
Keyword(s):  
Molecular Dynamics ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Propagation Process ◽  
Plane Shear ◽  
Simply Supported ◽  
Layer Graphene ◽  
Out Of Plane ◽  
Formation And Evolution ◽  
Dynamics Simulations

The formation and evolution mechanisms of wrinkling in a rectangular single layer graphene sheet (SLGS) with simply supported boundary subjected to in-plane shear displacements are investigated using molecular dynamics simulations. Through investigating the out-of-plane displacements of the key point atom, we clarify the wrinkling growth and propagation process. Our results show that the boundary condition plays important roles in the wrinkling deformation. And the dependence of wrinkling parameters on the applied shear displacements is captured. Based on the elasticity theory, the formation mechanism of graphene wrinkling is revealed from the viewpoint of elastic energy. The effects of aspect ratio of graphene, temperature, and loading velocity on graphene wrinkling parameters and patterns are also investigated.

Effects of nano carbon black and single-layer graphene oxide on settlement, survival and swimming behaviour ofAmphibalanus amphitritelarvae

2013 ◽  
Vol 29 (7) ◽  
pp. 643-652 ◽  
Author(s):  
Tina Mesarič ◽  
Kristina Sepčič ◽  
Veronica Piazza ◽  
Chiara Gambardella ◽  
Francesca Garaventa ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Black ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Swimming Behaviour ◽  
Layer Graphene ◽  
Nano Carbon

Direct Observation of Spatially Heterogeneous Single-Layer Graphene Oxide Reduction Kinetics

Nano Letters ◽  
2013 ◽  
Vol 13 (12) ◽  
pp. 5777-5784 ◽  
Author(s):  
Matthew P. McDonald ◽  
Ahmed Eltom ◽  
Felix Vietmeyer ◽  
Janak Thapa ◽  
Yurii V. Morozov ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Direct Observation ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Reduction Kinetics ◽  
Oxide Reduction ◽  
Layer Graphene

Single-layer graphene oxide films on a silicon surface

2013 ◽  
Vol 58 (11) ◽  
pp. 1614-1618 ◽  
Author(s):  
A. E. Aleksenskii ◽  
P. N. Brunkov ◽  
A. T. Dideikin ◽  
D. A. Kirilenko ◽  
Yu. V. Kudashova ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Silicon Surface ◽  
Oxide Films ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene

Fanless, Porous graphene-copper composite heat sink for micro devices

2021 ◽  
Author(s):  
Hokyun Rho ◽  
Yea Sol Jang ◽  
Hyojung Bae ◽  
An-Na Cha ◽  
Sang Hyun Lee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Light Intensity ◽  
Thermal Management ◽  
Heat Sink ◽  
Light Emitting Diode ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Measured Temperature ◽  
Layer Graphene ◽  
Pure Cu

Abstract Thermal management in devices directly affects their performance, but it is difficult to apply conventional cooling methods such as the use of cooling liquids or fans to micro devices owing to the small size of micro devices. In this study, we attempted to solve this problem by employing a heat sink fabricated using copper with porous structures consisting of single-layer graphene on the surface and graphene oxide inside the pores. The porous copper/single-layer graphene/graphene oxide composite (p-CuGrGO) had a porosity of approximately 35%, and the measured pore size was approximately 10 to 100 µm. The internal GO was reduced at a temperature of 1000 ℃. On observing the heat distribution in the structure using a thermal imaging camera, we could observe that the p-CuGrGO was conducting heat faster than the p-Cu, which was consistent with the simulation. Furthermore, the thermal resistance of p-CuGrGO was lower than those of the p-Cu and pure Cu. When the p-CuGrGO was fabricated into a heat sink to mount the light emitting diode (LED) chip, the measured temperature of the LED was 31.04 ℃, which was less than the temperature of the pure Cu of 40.8 ℃. After a week of being subjected to harsh conditions, p-CuGrGO observed 95.24% light intensity, but the light intensity of pure Cu decreased to 66.04%. The results of this study are expected to be applied to micro devices for their effective thermal management.

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