Details
| Original language | English |
|---|---|
| Pages (from-to) | 4882-4890 |
| Number of pages | 9 |
| Journal | Journal of the European Ceramic Society |
| Volume | 39 |
| Issue number | 15 |
| Early online date | 4 Jul 2019 |
| Publication status | Published - Dec 2019 |
Abstract
A series of composites based on (100-x)wt.%Ce0.9Pr0.1O2-δ-xwt.%Pr0.6Ca0.4FeO3-δ (x = 25, 40 and 50) doped with the cheap and abundant alkaline earth metal Ca2+ at the A-site has been successfully designed and fabricated. The crystal structure, oxygen permeability, phase and CO2 stability were evaluated. The composition of 60wt.%Ce0.9Pr0.1O2-δ-40wt.%Pr0.6Ca0.4FeO3-δ(60CPO-40PCFO) possesses the highest oxygen permeability among three studied composites. At 1000 °C, the oxygen permeation fluxes through the 0.3 mm-thickness 60CPO-40PCFO membranes after porous La0.6Sr0.4CoO3-δ each to 1.00 mL cm−2 min−1 and 0.62 mL cm−2 min−1 under air/He and air/CO2 gradients, respectively. In situ XRD results demonstrated that the 60CPO-40PCFO sample displayed a perfect structural stability in air as well as CO2-containing atmosphere. Thus, low-cost, Co-free and Sr-free 60CPO-40PCFO has high CO2 stability and is economical and environmental friendly since the expensive and volatile element Co was replaced by Fe and Sr was waived since it easily forms carbonates.
Keywords
- Ca-containing membrane, CO stability, Dual-phase membrane, Oxygen permeation, Pechini one-pot method
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Materials Chemistry
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In: Journal of the European Ceramic Society, Vol. 39, No. 15, 12.2019, p. 4882-4890.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - High-flux dual-phase percolation membrane for oxygen separation
AU - Wang, Shu
AU - Shi, Lei
AU - Xie, Zhiang
AU - He, Yuan
AU - Yan, Dong
AU - Li, Man-Rong
AU - Caro, Juergen
AU - Luo, Huixia
N1 - Funding Information: H.X. Luo acknowledges the financial support by “Hundred Talents Program” of the Sun Yat-Sen University and National Natural Science Foundation of China ( 21701197 ). M.R. Li is supported by the “One Thousand Youth Talents” Program of China .
PY - 2019/12
Y1 - 2019/12
N2 - A series of composites based on (100-x)wt.%Ce0.9Pr0.1O2-δ-xwt.%Pr0.6Ca0.4FeO3-δ (x = 25, 40 and 50) doped with the cheap and abundant alkaline earth metal Ca2+ at the A-site has been successfully designed and fabricated. The crystal structure, oxygen permeability, phase and CO2 stability were evaluated. The composition of 60wt.%Ce0.9Pr0.1O2-δ-40wt.%Pr0.6Ca0.4FeO3-δ(60CPO-40PCFO) possesses the highest oxygen permeability among three studied composites. At 1000 °C, the oxygen permeation fluxes through the 0.3 mm-thickness 60CPO-40PCFO membranes after porous La0.6Sr0.4CoO3-δ each to 1.00 mL cm−2 min−1 and 0.62 mL cm−2 min−1 under air/He and air/CO2 gradients, respectively. In situ XRD results demonstrated that the 60CPO-40PCFO sample displayed a perfect structural stability in air as well as CO2-containing atmosphere. Thus, low-cost, Co-free and Sr-free 60CPO-40PCFO has high CO2 stability and is economical and environmental friendly since the expensive and volatile element Co was replaced by Fe and Sr was waived since it easily forms carbonates.
AB - A series of composites based on (100-x)wt.%Ce0.9Pr0.1O2-δ-xwt.%Pr0.6Ca0.4FeO3-δ (x = 25, 40 and 50) doped with the cheap and abundant alkaline earth metal Ca2+ at the A-site has been successfully designed and fabricated. The crystal structure, oxygen permeability, phase and CO2 stability were evaluated. The composition of 60wt.%Ce0.9Pr0.1O2-δ-40wt.%Pr0.6Ca0.4FeO3-δ(60CPO-40PCFO) possesses the highest oxygen permeability among three studied composites. At 1000 °C, the oxygen permeation fluxes through the 0.3 mm-thickness 60CPO-40PCFO membranes after porous La0.6Sr0.4CoO3-δ each to 1.00 mL cm−2 min−1 and 0.62 mL cm−2 min−1 under air/He and air/CO2 gradients, respectively. In situ XRD results demonstrated that the 60CPO-40PCFO sample displayed a perfect structural stability in air as well as CO2-containing atmosphere. Thus, low-cost, Co-free and Sr-free 60CPO-40PCFO has high CO2 stability and is economical and environmental friendly since the expensive and volatile element Co was replaced by Fe and Sr was waived since it easily forms carbonates.
KW - Ca-containing membrane
KW - CO stability
KW - Dual-phase membrane
KW - Oxygen permeation
KW - Pechini one-pot method
UR - http://www.scopus.com/inward/record.url?scp=85068438750&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2019.06.039
DO - 10.1016/j.jeurceramsoc.2019.06.039
M3 - Article
AN - SCOPUS:85068438750
VL - 39
SP - 4882
EP - 4890
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 15
ER -