Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
637024 | Journal of Membrane Science | 2009 | 5 Pages |
Abstract
A mesopore sized YSZ-SiO2 ceramic hollow fibre membrane has been fabricated using a novel phase transition technique. The N2 or H2 single-gas permeation under relatively high pressure gradients reveals that the YSZ-SiO2 membrane is gas permeable, and the mean pore diameter of the membrane is less than four nanometers. Examination of the microstructure of the membrane shows that the YSZ-SiO2 ceramic is well sintered and is free of packing-pores. By analyzing the phase transition of the SiO2 and the microstructure of the membrane, it is believed that the pores in the membrane for the gas permeation were created by the β → α transition of cristobalite.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Bo Wang, Zhentao Wu, A.G. Livingston, K. Li,