Back to Search Start Over

Ultrathin Composite Polymeric Membranes for CO2/N2 Separation with Minimum Thickness and High CO2 Permeance.

Authors :
BENito, Javier
Sánchez ‐ Laínez, Javier
Zornoza, Beatriz
Martín, Santiago
Carta, Mariolino
Malpass ‐ Evans, Richard
Téllez, Carlos
McKeown, Neil B.
Coronas, Joaquín
Gascón, Ignacio
Source :
ChemSusChem; 10/23/2017, Vol. 10 Issue 20, p4014-4017, 4p
Publication Year :
2017

Abstract

The use of ultrathin films as selective layers in composite membranes offers significant advantages in gas separation for increasing productivity while reducing the membrane size and energy costs. In this contribution, composite membranes have been obtained by the successive deposition of approximately 1 nm thick monolayers of a polymer of intrinsic microporosity (PIM) on top of dense membranes of the ultra-permeable poly[1-(trimethylsilyl)-1-propyne] (PTMSP). The ultrathin PIM films (30 nm in thickness) demonstrate CO<subscript>2</subscript> permeance up to seven times higher than dense PIM membranes using only 0.04 % of the mass of PIM without a significant decrease in CO<subscript>2</subscript>/N<subscript>2</subscript> selectivity. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18645631
Volume :
10
Issue :
20
Database :
Complementary Index
Journal :
ChemSusChem
Publication Type :
Academic Journal
Accession number :
125820434
Full Text :
https://doi.org/10.1002/cssc.201701139