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Related Experiment Video

Updated: Apr 15, 2026

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

Selective gas diffusion in graphene oxides membranes: a molecular dynamics simulations study.

Shuping Jiao¹, Zhiping Xu^1,2

¹†Applied Mechanics Laboratory, Department of Engineering Mechanics, and Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China.

ACS Applied Materials & Interfaces

|April 15, 2015

Summary

One-atom-thick membranes offer precise control for gas separation. Molecular dynamics simulations reveal highly selective gas permeation in functionalized graphene, advancing technologies like hydrogen separation and CO2 sequestration.

Keywords:

diffusion coefficients gas separation graphene graphene oxides membrane molecular dynamics simulations

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Published on: September 2, 2016

Area of Science:

Materials Science
Chemical Engineering
Nanotechnology

Background:

One-atom-thick materials provide ultimate precision for membrane design.
Achieving high permeation-selectivity trade-off is crucial for gas separation.
Functionalized graphene offers promising avenues for advanced membrane applications.

Purpose of the Study:

To explore molecular dynamics of gas diffusion in functionalized graphene multilayers.
To identify factors influencing gas permeation and selectivity.
To evaluate graphene oxide membranes for gas separation technologies.

Main Methods:

Molecular dynamics simulations of gas diffusion.
Analysis of gas permeation through graphene galleries and nanopores.
Comparison with experimental measurements for validation.

Main Results:

Identified highly selective gas permeation in functionalized graphene.
Demonstrated agreement with experimental gas separation data.
Elucidated the roles of structural and chemical factors in gas diffusion.

Conclusions:

Functionalized graphene membranes show significant promise for gas separation.
Understanding diffusion dynamics can guide the development of advanced membranes.
Engineering two-dimensional layered structures is key for high-performance membranes.