Details
| Original language | English |
|---|---|
| Pages (from-to) | 24008-24015 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry A |
| Volume | 3 |
| Issue number | 47 |
| Early online date | 2 Nov 2015 |
| Publication status | Published - 21 Dec 2015 |
Abstract
Novel dual-phase oxygen-transporting membranes with compositions 40 wt% Nd0.6Sr0.4Al0.2Fe0.8O3-δ-60 wt% Ce0.9Nd0.1O2-δ (NSAF6428-CN91) and 40 wt% Nd0.5Sr0.5Al0.2Fe0.8O3-δ-60 wt% Ce0.8Nd0.2O2-δ (NSAF5528-CN82) were successfully synthesized via a one-pot sol-gel method. The oxygen permeation performance and the structural properties of the membranes could be simultaneously improved owing to Al doping of the perovskite phase. The newly developed dense ceramic membranes (0.6 mm thick) displayed long-term stable oxygen permeation fluxes of 0.31 and 0.51 cm3 min-1 cm-2 under an air/CO2 oxygen partial pressure gradient at 950 °C for NSAF6428-CN91 and NSAF5528-CN82, respectively. The NSAF6428-CN91 showed a stable oxygen flux of 0.15 cm3 min-1 cm-2 at 900 °C for 100 h, without any deterioration of the microstructure under pure CO2 sweeping.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- General Materials Science
Sustainable Development Goals
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In: Journal of Materials Chemistry A, Vol. 3, No. 47, 21.12.2015, p. 24008-24015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Novel CO2-tolerant Al-containing membranes for high-temperature oxygen separation
AU - Partovi, Kaveh
AU - Bittner, Michael
AU - Caro, Jürgen
PY - 2015/12/21
Y1 - 2015/12/21
N2 - Novel dual-phase oxygen-transporting membranes with compositions 40 wt% Nd0.6Sr0.4Al0.2Fe0.8O3-δ-60 wt% Ce0.9Nd0.1O2-δ (NSAF6428-CN91) and 40 wt% Nd0.5Sr0.5Al0.2Fe0.8O3-δ-60 wt% Ce0.8Nd0.2O2-δ (NSAF5528-CN82) were successfully synthesized via a one-pot sol-gel method. The oxygen permeation performance and the structural properties of the membranes could be simultaneously improved owing to Al doping of the perovskite phase. The newly developed dense ceramic membranes (0.6 mm thick) displayed long-term stable oxygen permeation fluxes of 0.31 and 0.51 cm3 min-1 cm-2 under an air/CO2 oxygen partial pressure gradient at 950 °C for NSAF6428-CN91 and NSAF5528-CN82, respectively. The NSAF6428-CN91 showed a stable oxygen flux of 0.15 cm3 min-1 cm-2 at 900 °C for 100 h, without any deterioration of the microstructure under pure CO2 sweeping.
AB - Novel dual-phase oxygen-transporting membranes with compositions 40 wt% Nd0.6Sr0.4Al0.2Fe0.8O3-δ-60 wt% Ce0.9Nd0.1O2-δ (NSAF6428-CN91) and 40 wt% Nd0.5Sr0.5Al0.2Fe0.8O3-δ-60 wt% Ce0.8Nd0.2O2-δ (NSAF5528-CN82) were successfully synthesized via a one-pot sol-gel method. The oxygen permeation performance and the structural properties of the membranes could be simultaneously improved owing to Al doping of the perovskite phase. The newly developed dense ceramic membranes (0.6 mm thick) displayed long-term stable oxygen permeation fluxes of 0.31 and 0.51 cm3 min-1 cm-2 under an air/CO2 oxygen partial pressure gradient at 950 °C for NSAF6428-CN91 and NSAF5528-CN82, respectively. The NSAF6428-CN91 showed a stable oxygen flux of 0.15 cm3 min-1 cm-2 at 900 °C for 100 h, without any deterioration of the microstructure under pure CO2 sweeping.
UR - http://www.scopus.com/inward/record.url?scp=84948411252&partnerID=8YFLogxK
U2 - 10.1039/c5ta04405g
DO - 10.1039/c5ta04405g
M3 - Article
AN - SCOPUS:84948411252
VL - 3
SP - 24008
EP - 24015
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 47
ER -