scholarly journals Centimeter-scale gas-sieving nanoporous single-layer graphene membrane

2021 ◽  
Vol 618 ◽  
pp. 118745
Author(s):  
Wan-Chi Lee ◽  
Luc Bondaz ◽  
Shiqi Huang ◽  
Guangwei He ◽  
Mostapha Dakhchoune ◽  
...  
Keyword(s):  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Graphene Membrane

Numerical Simulation of Salt Water Passing Mechanism Through Nanoporous Single-Layer Graphene Membrane

2016 ◽  
Vol 11 (1) ◽  
pp. 73-76 ◽  
Author(s):  
A. Chogani ◽  
A. Moosavi ◽  
M. Rahiminejad
Keyword(s):  
Water Flow ◽  
Sea Water ◽  
Salt Water ◽  
Applied Pressure ◽  
Single Layer ◽  
Hazardous Substances ◽  
Single Layer Graphene ◽  
Salt Rejection ◽  
Layer Graphene ◽  
Graphene Membrane

Abstract In recent years carbon nanotubes and other carbon nanostructures such as graphene sheets have attracted a lot of attention due to their unique mechanical, thermal and electrical properties. These structures can be used in desalination of sea water, removal of hazardous substances from water tanks, gases separation, and so on. The nanoporous single layer graphene membranes are very efficient for desalinating water due to their very low thickness. In this method, water-flow thorough the membrane and salt rejection strongly depend on the applied pressure and size of nanopores that are created in graphene membrane. In this study, the mechanism of passing water and salt ions through nanoporous single-layer graphene membrane are simulated using classical molecular dynamics. We examined the effects of applied pressure and size of nanopores on desalination performance of NPG membrane. Unlike previous researches, we considered the flexibility of the membrane. The results show that by increasing the applied pressure and diameter of the nanopores, water-flow through membrane increases, meanwhile salt rejection decreases.

scholarly journals Structural Modification of Pristine Graphene Network Towards Nanoporous Graphene Membrane: A Review

2018 ◽  
Vol 22 (1) ◽  
Author(s):  
Mohd ‘Azizir-Rahim Mukri ◽  
Mohd Syafiq Elias ◽  
Madzlan Aziz ◽  
Masaki Tanemura ◽  
Mohd Zamri Mohd Yusop
Keyword(s):  
Structural Modification ◽  
Review Paper ◽  
Electronic Devices ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Pristine Graphene ◽  
Layer Graphene ◽  
Graphene Membrane ◽  
Nanoporous Graphene ◽  
And Control

A single graphene layer is superior many ways preferably in electronic devices application. However, mild modification of the graphene network could open a new potential to the ultrathin graphene membrane. Moreover, recent studies demonstrated that a few simple techniques could generate and control the nanopores size on single layer graphene sheet simultaneously. This review paper will discuss all potential techniques that are capable to generate nanopores structure on the pristine single layer graphene network.

New leak element based on transfer-free single-layer graphene membrane

Vacuum ◽  
2021 ◽  
pp. 110681
Author(s):  
Xudi Wang ◽  
Hanwen Lin ◽  
Hailin Bi ◽  
Qing Cao ◽  
Donghui Meng ◽  
...  
Keyword(s):  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Graphene Membrane

scholarly journals High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target

2019 ◽  
Vol 12 (11) ◽  
pp. 3305-3312 ◽  
Author(s):  
Guangwei He ◽  
Shiqi Huang ◽  
Luis Francisco Villalobos ◽  
Jing Zhao ◽  
Mounir Mensi ◽  
...  
Keyword(s):  
Carbon Capture ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Graphene Membrane ◽  
Nanoporous Graphene ◽  
Graphene Membranes

A single-layer nanoporous graphene membrane functionalized with CO2-phillic polymers shows extremely fast, selective CO2 transport.

Electrochemical charging of the single-layer graphene membrane

2016 ◽  
Vol 253 (12) ◽  
pp. 2331-2335 ◽  
Author(s):  
Zuzana Komínková ◽  
Martin Kalbáč
Keyword(s):  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Graphene Membrane

Comparative study of electron transfer on various graphene-metallic contacts

2019 ◽  
Vol 33 (31) ◽  
pp. 1950384
Author(s):  
Di Lu ◽  
Yu-E Yang ◽  
Weichun Zhang ◽  
Caixia Wang ◽  
Jining Fang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Single Layer ◽  
Annealing Treatment ◽  
Single Layer Graphene ◽  
Strain Effect ◽  
Graphene Surface ◽  
Layer Graphene ◽  
Metallic Contacts ◽  
Nonuniform Strain ◽  
Main Factor

We have investigated Raman spectra of the G and 2D lines of a single-layer graphene (SLG) with metallic contacts. The shift of the G and 2D lines is correlated to two different factors. Before performing annealing treatment or annealing under low temperature, the electron transfer on graphene surface is dominated by nonuniform strain effect. As the annealing treatment is enhanced, however, a suitable annealing treatment can eliminate the nonuniform strain effect where the relative work function (WF) between graphene and metal becomes a main factor to determine electronic transfer. Moreover, it is confirmed that the optimized annealing treatment can also decrease effectively the structural defect and induced disorder in graphene due to metallic contacts.

Hybrid dye sensitized solar cell based on single layer graphene quantum dots

2020 ◽  
Vol 175 ◽  
pp. 108118 ◽  
Author(s):  
Farhad Jahantigh ◽  
S.M. Bagher Ghorashi ◽  
Amir Bayat
Keyword(s):  
Quantum Dots ◽  
Solar Cell ◽  
Graphene Quantum Dots ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Layer Graphene
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