Effects of sintering atmospheres on sintering behavior, electrical conductivity and oxygen permeability of mixed-conducting membranes

Chang, Xianfeng, Zhang, Chun, Dong, Xueliang, Zhou, Wei, Jin, Wanqin, Shao, Zongping and Xu, Nanping (2008) Effects of sintering atmospheres on sintering behavior, electrical conductivity and oxygen permeability of mixed-conducting membranes. Journal of Membrane Science, 316 1-2: 128-136. doi:10.1016/j.memsci.2007.09.040


Author Chang, Xianfeng
Zhang, Chun
Dong, Xueliang
Zhou, Wei
Jin, Wanqin
Shao, Zongping
Xu, Nanping
Title Effects of sintering atmospheres on sintering behavior, electrical conductivity and oxygen permeability of mixed-conducting membranes
Journal name Journal of Membrane Science   Check publisher's open access policy
ISSN 0376-7388
1873-3123
Publication date 2008-05-15
Sub-type Article (original research)
DOI 10.1016/j.memsci.2007.09.040
Open Access Status Not Open Access
Volume 316
Issue 1-2
Start page 128
End page 136
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract Effects of sintering atmospheres on properties of SrCo0.4Fe0.5Zr0.1O3-δ mixed-conducting membranes were in detail studied in terms of sintering behavior, electrical conductivity and oxygen permeability. The sintering atmospheres were 100% N2, 79% N2-21% O2, 60% N2-40% O2, 40% N2-60% O2, 20% N2-80% O2 and 100% O2 (in vol.%), and the prepared membranes were correspondingly denoted as S-0, S-21, S-40, S-60, S-80 and S-100, respectively. It was found that the properties of membranes were strongly dependent on the sintering atmosphere. As the oxygen partial pressure in the sintering atmosphere (PO2) increased, sintering ability, electrical conductivity and oxygen permeability decreased at first, which was in the order of S-0 > S-21 > S-40. However, as PO2 increased further, sintering ability, electrical conductivity and oxygen permeability increased gradually: S-40 < S-60 < S-80 < S-100. And the S-100 membrane had the best sintering ability, electrical conductivity and oxygen permeability in all membranes.
Keyword Electrical conductivity
Mixed-conducting membrane
Oxygen permeability
Sintering atmosphere
Sintering behavior
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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