Details
| Original language | English |
|---|---|
| Pages (from-to) | 158-165 |
| Number of pages | 8 |
| Journal | Journal of membrane science |
| Volume | 503 |
| Early online date | 14 Jan 2016 |
| Publication status | Published - 1 Apr 2016 |
Abstract
Dense dual-phase membranes 40% Sm0.5Sr0.5Cu0.2Fe0.8O3-δ - 60% Ce0.8Sm0.2O2-δ (SmSrCF5528-CSO) and 40% Sm0.3Sr0.7Cu0.2Fe0.8O3-δ - 60% Ce0.8Sm0.2O2-δ (SmSrCF3728-CSO) were prepared via the citric acid/EDTA complexing sol-gel process. The phase composition and the microstructure of the membranes were characterized by XRD, SEM and EDXS analysis. The newly developed cobalt-free membranes SmSrCF5528-CSO and SmSrCF3728-CSO (0.6mm thick) exhibited high oxygen fluxes of 1.12 and 1.15cm3min-1cm-2, respectively, at 1000°C with pure CO2 as the sweep gas. The long-term CO2 stability of each membrane was studied in the temperature range of 900-1000°C for more than 200h on stream. The SmSrCF5528-CSO membrane displayed very good stability at all temperatures. The oxygen permeation fluxes of the Sr-rich membrane SmSrCF3728-CSO were stable at 1000 and 950°C.
Keywords
- CO-tolerant oxygen permeation, Cu-doped perovskite, Dual-phase membranes, Mixed conductor, Oxygen-transporting ceramics
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Materials Science(all)
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Filtration and Separation
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In: Journal of membrane science, Vol. 503, 01.04.2016, p. 158-165.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Enhanced oxygen permeability of novel Cu-containing CO2-tolerant dual-phase membranes
AU - Partovi, Kaveh
AU - Rüscher, Claus H.
AU - Steinbach, Frank
AU - Caro, Jürgen
N1 - Funding Information: The authors gratefully acknowledge the financial support by DFG Ca 147/18-1 and the Sino-German Centre for Research Promotion (Nos. GZ676 and GZ911 ).
PY - 2016/4/1
Y1 - 2016/4/1
N2 - Dense dual-phase membranes 40% Sm0.5Sr0.5Cu0.2Fe0.8O3-δ - 60% Ce0.8Sm0.2O2-δ (SmSrCF5528-CSO) and 40% Sm0.3Sr0.7Cu0.2Fe0.8O3-δ - 60% Ce0.8Sm0.2O2-δ (SmSrCF3728-CSO) were prepared via the citric acid/EDTA complexing sol-gel process. The phase composition and the microstructure of the membranes were characterized by XRD, SEM and EDXS analysis. The newly developed cobalt-free membranes SmSrCF5528-CSO and SmSrCF3728-CSO (0.6mm thick) exhibited high oxygen fluxes of 1.12 and 1.15cm3min-1cm-2, respectively, at 1000°C with pure CO2 as the sweep gas. The long-term CO2 stability of each membrane was studied in the temperature range of 900-1000°C for more than 200h on stream. The SmSrCF5528-CSO membrane displayed very good stability at all temperatures. The oxygen permeation fluxes of the Sr-rich membrane SmSrCF3728-CSO were stable at 1000 and 950°C.
AB - Dense dual-phase membranes 40% Sm0.5Sr0.5Cu0.2Fe0.8O3-δ - 60% Ce0.8Sm0.2O2-δ (SmSrCF5528-CSO) and 40% Sm0.3Sr0.7Cu0.2Fe0.8O3-δ - 60% Ce0.8Sm0.2O2-δ (SmSrCF3728-CSO) were prepared via the citric acid/EDTA complexing sol-gel process. The phase composition and the microstructure of the membranes were characterized by XRD, SEM and EDXS analysis. The newly developed cobalt-free membranes SmSrCF5528-CSO and SmSrCF3728-CSO (0.6mm thick) exhibited high oxygen fluxes of 1.12 and 1.15cm3min-1cm-2, respectively, at 1000°C with pure CO2 as the sweep gas. The long-term CO2 stability of each membrane was studied in the temperature range of 900-1000°C for more than 200h on stream. The SmSrCF5528-CSO membrane displayed very good stability at all temperatures. The oxygen permeation fluxes of the Sr-rich membrane SmSrCF3728-CSO were stable at 1000 and 950°C.
KW - CO-tolerant oxygen permeation
KW - Cu-doped perovskite
KW - Dual-phase membranes
KW - Mixed conductor
KW - Oxygen-transporting ceramics
UR - http://www.scopus.com/inward/record.url?scp=84955327522&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2016.01.019
DO - 10.1016/j.memsci.2016.01.019
M3 - Article
AN - SCOPUS:84955327522
VL - 503
SP - 158
EP - 165
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
ER -