Preparation and oxygen permeation properties of SrCo(0.9)Nb(0.1)O(3-delta) hollow fibre membranes

Meng, Bo, Wang, Zhigang, Liu, Yuying, Tan, Xiaoyao, Diniz da Costa, João C. and Liu, Shaomin (2011) Preparation and oxygen permeation properties of SrCo(0.9)Nb(0.1)O(3-delta) hollow fibre membranes. Separation and Purification Technology, 78 2: 175-180. doi:10.1016/j.seppur.2011.01.043


Author Meng, Bo
Wang, Zhigang
Liu, Yuying
Tan, Xiaoyao
Diniz da Costa, João C.
Liu, Shaomin
Title Preparation and oxygen permeation properties of SrCo(0.9)Nb(0.1)O(3-delta) hollow fibre membranes
Formatted title
Preparation and oxygen permeation properties of SrCo0.9Nb0.1O3−δ hollow fibre membranes
Language of Title eng
Journal name Separation and Purification Technology   Check publisher's open access policy
Language of Journal Name eng
ISSN 0950-4214
0956-9618
1383-5866
1873-3794
Publication date 2011-04-11
Sub-type Article (original research)
DOI 10.1016/j.seppur.2011.01.043
Volume 78
Issue 2
Start page 175
End page 180
Total pages 6
Place of publication East Park, Kidlington, Oxford, U.K.
Publisher Pergamon
Collection year 2012
Language eng
Formatted abstract
Ultrafine SrCo0.9Nb0.1O3−δ (SCNb) perovskite powders were synthesized by a modified Pechini method using EDTA and citrate acid as chelating agents. Dense SCNb hollow fibre membranes with an asymmetric structure were fabricated via a phase inversion and sintering technique. Oxygen permeation fluxes through the obtained hollow fibre membranes were measured in the temperature range of 500–900 °C under air/helium gradients. The results indicated that the oxygen permeation flux through the SCNb hollow fibre membrane was approximately 9.30 mmol m−2 s−1 at 650 °C when the air feed and the helium sweeping rates were 74.4 μmol s−1 and 44.6 μmol s−1, respectively. The SCNb hollow fibre membranes showed a stable oxygen permeation flux over 240 h at 900 °C with a maximum value reaching 38.10 mmol m−2 s−1 comparing favorable to the performance of other perovskite membranes.

Research highlights: ► SrCo0.9Nb0.1O3−δ perovskite hollow fibre membranes are prepared via a phase inversion and sintering technique for oxygen separation. ► The oxygen permeation flux through the membranes at 650 °C may reach 9.30 mmol m−2 s−1. ► A stable oxygen flux of 38.10 mmol m−2 s−1 can be maintained at 900 °C for over 240 h.

Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2012 Collection
 
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Created: Tue, 06 Mar 2012, 09:15:17 EST by Joe Diniz Da Costa on behalf of School of Chemical Engineering