Details
| Original language | English |
|---|---|
| Article number | 117530 |
| Journal | Journal of membrane science |
| Volume | 595 |
| Early online date | 3 Oct 2019 |
| Publication status | Published - 1 Feb 2020 |
Abstract
A series of novel dense, CO2-tolerant, oxygen permeable, dual-phase membranes made of Ce0.9Pr0.1O2–δ - La0.5Sr0.5Fe0.9Cu0.1O3–δ (CPO-LSFCO) with different CPO : LSFCO weight ratios (2:8, 4:6, 6:4 and 8:2) was prepared by an one-pot EDTA-citric acid method. Their chemical compatibility, oxygen permeability, CO2 tolerance and long-term stability regarding the phase structure and composition in different atmospheres were studied. A direct dependency of the oxygen permeation flux through the membranes on the CPO : LSFCO weight ratio was obtained. The highest permeation fluxes of 0.93 mL min−1 cm−2 and 0.71 mL min−1 cm−2 under an air/He and an air/CO2 gradient, respectively, through a 0.5 mm thick membrane at 1173 K were measured for a weight ratio of 4:6. Especially, the membranes showed excellent chemical resistance towards CO2 for more than 2050 h and CO2 plasma for more than 20 h. This work demonstrates that dual-phase CPO-LSFCO membranes are promising, chemically stable candidates as oxygen suppliers or oxygen distributors for industrial applications.
Keywords
- CO plasma resistance, CO resistance, Dual-phase membrane, Long-term CO resistance, Oxygen permeation
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. 595, 117530, 01.02.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Novel CO2-tolerant dual-phase Ce0.9Pr0.1O2–δ - La0.5Sr0.5Fe0.9Cu0.1O3–δ membranes with high oxygen permeability
AU - Chen, Guoxing
AU - Tang, Binjie
AU - Widenmeyer, Marc
AU - Wang, Ling
AU - Feldhoff, Armin
AU - Weidenkaff, Anke
N1 - Funding Information: This work is part of the project “Plasma-induced CO 2 -conversion” (PiCK, project number: 03SFK2S3B ) and financially supported by the German Federal Ministry of Education and Research in the framework of the “Kopernikus projects for the Energiewende”. The authors are thankful to Frank Hack and Dr. Angelika Veziridis for their kind support during experiments and discussions.
PY - 2020/2/1
Y1 - 2020/2/1
N2 - A series of novel dense, CO2-tolerant, oxygen permeable, dual-phase membranes made of Ce0.9Pr0.1O2–δ - La0.5Sr0.5Fe0.9Cu0.1O3–δ (CPO-LSFCO) with different CPO : LSFCO weight ratios (2:8, 4:6, 6:4 and 8:2) was prepared by an one-pot EDTA-citric acid method. Their chemical compatibility, oxygen permeability, CO2 tolerance and long-term stability regarding the phase structure and composition in different atmospheres were studied. A direct dependency of the oxygen permeation flux through the membranes on the CPO : LSFCO weight ratio was obtained. The highest permeation fluxes of 0.93 mL min−1 cm−2 and 0.71 mL min−1 cm−2 under an air/He and an air/CO2 gradient, respectively, through a 0.5 mm thick membrane at 1173 K were measured for a weight ratio of 4:6. Especially, the membranes showed excellent chemical resistance towards CO2 for more than 2050 h and CO2 plasma for more than 20 h. This work demonstrates that dual-phase CPO-LSFCO membranes are promising, chemically stable candidates as oxygen suppliers or oxygen distributors for industrial applications.
AB - A series of novel dense, CO2-tolerant, oxygen permeable, dual-phase membranes made of Ce0.9Pr0.1O2–δ - La0.5Sr0.5Fe0.9Cu0.1O3–δ (CPO-LSFCO) with different CPO : LSFCO weight ratios (2:8, 4:6, 6:4 and 8:2) was prepared by an one-pot EDTA-citric acid method. Their chemical compatibility, oxygen permeability, CO2 tolerance and long-term stability regarding the phase structure and composition in different atmospheres were studied. A direct dependency of the oxygen permeation flux through the membranes on the CPO : LSFCO weight ratio was obtained. The highest permeation fluxes of 0.93 mL min−1 cm−2 and 0.71 mL min−1 cm−2 under an air/He and an air/CO2 gradient, respectively, through a 0.5 mm thick membrane at 1173 K were measured for a weight ratio of 4:6. Especially, the membranes showed excellent chemical resistance towards CO2 for more than 2050 h and CO2 plasma for more than 20 h. This work demonstrates that dual-phase CPO-LSFCO membranes are promising, chemically stable candidates as oxygen suppliers or oxygen distributors for industrial applications.
KW - CO plasma resistance
KW - CO resistance
KW - Dual-phase membrane
KW - Long-term CO resistance
KW - Oxygen permeation
UR - http://www.scopus.com/inward/record.url?scp=85073524468&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2019.117530
DO - 10.1016/j.memsci.2019.117530
M3 - Article
AN - SCOPUS:85073524468
VL - 595
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
M1 - 117530
ER -