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High molecular permeance dual-layer ceramic membrane for capturing CO2 from flue gas stream.

Nwogu, Ngozi C.; Kajama, Mohammed N.; Orakwe, Ifeyinwa; Gobina, Edward


Ngozi C. Nwogu

Mohammed N. Kajama

Ifeyinwa Orakwe

Edward Gobina


With the objective to create technologically advanced materials to be scientifically applicable, dual-layer silica alumina membranes were molecularly fabricated by continuous surface coating silica layers containing hybrid material onto a ceramic porous substrate for flue gas separation applications. The dual-layer silica alumina membrane was prepared by dip coating technique before further drying in an oven at elevated temperature. The effects of substrate physical appearance, coating quantity, cross-linking agent, number of coatings and testing conditions on gas separation performance of the membrane have been investigated. Scanning electron microscope was used to investigate the development of coating thickness. The membrane shows impressive perm selectivity especially for CO2 and N2 binary mixture representing a stimulated flue gas stream.


NWOGU, N.C., KAJAMA, M.A., ORAKWE, I. and GOBINA, E. 2015. High molecular permeance dual-layer ceramic membrane for capturing CO2 from flue gas stream. Energy and power engineering [online], 7(9), pages 418-425. Available from:

Journal Article Type Article
Acceptance Date Aug 22, 2015
Online Publication Date Aug 25, 2015
Publication Date Aug 31, 2015
Deposit Date Sep 12, 2016
Publicly Available Date Sep 12, 2016
Journal Energy and power engineering
Print ISSN 1949-243X
Electronic ISSN 1947-3818
Publisher Scientific Research Publishing
Peer Reviewed Peer Reviewed
Volume 7
Issue 9
Pages 418-425
Keywords Gas separation; Silica membrane; Separation factor; Membrane layer thickness
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