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Subject Preparation of nanocomposite CO2 separation membrane including graphene oxide layer (Hanyang Univ, Ho Bum Park)
Name KCRC Date 2015-03-31 Hit 1264

□ Overview

• Graphene oxide membrane has 1,000 times high permeability and 100 times thinner than conventional polymeric membranes.
• Graphene oxide membrane can be used making ultrathin selective layer via aqueous solution process and simple coating methods.

 

□ Background

• Membrane is a functional material that can separate a target component efficiently from a mixture. Gas separation membranes which separate carbon dioxide from gas mixture have been applied in carbon capture before or after combustion in a power plant or a petrochemical plant, and purification of natural gas or biogas.

 

□ Limitation of Conventional Technologies

• Polymeric membrane materials show obvious limitations in permselectivity trade-off in gas or liquid separation. Also, membrane separation processes show lower productivity than conventional separation processes, even though they are environmental-friendly and energy-efficient processes.

  

□ The Advatage of our Technology

• Graphene oxide membrane has 1,000 times high permeability and 100 times thinner than conventional polymeric membranes.
Conventional polymeric membranes suffer from hazardous and time-consuming fabrication processes. However, graphene oxide membrane can be used making ultrathin selective layer via aqueous solution process and simple coating methods.

 

□ Applications

• Gas and carbon dioxide separation, Seawater desalination, Electronic Device, Barrier Material ect.

 

□ Publication & Patents

•  "Selective Gas Transport Through Few-Layered Graphene and Graphene Oxide Membranes", Science, 342, 91-95 (2013.10.)
•  Patents: 6 including ‘functional graphene membrane’ (Korea), 2 PCTs
•  2013 BEST 10 research in Korea published in 'Nature' and 'Science' journals

 

 

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