Details
| Original language | English |
|---|---|
| Pages (from-to) | 450-458 |
| Number of pages | 9 |
| Journal | Journal of membrane science |
| Volume | 423-424 |
| Early online date | 1 Sept 2012 |
| Publication status | Published - 15 Dec 2012 |
Abstract
A rapid one-pot combustion synthesis method based on glycine-nitrate, has been applied to prepare a novel oxygen transporting dual phase CO 2-stable membrane of the composition 40wt% Mn 1.5Co 1.5O 4-δ-60wt% Ce 0.9Pr 0.1O 2-δ (40MCO-60CPO). After sintering at 1300°C in air for 10h, the 40MCO-60CPO membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), back scattered SEM (BSEM), and energy dispersive X-ray spectroscopy (EDXS), showing that the 40MCO-60CPO composite represents a micro-scale mixture of mainly the two phases MCO and CPO, but small amounts of MnO 2 and (MnCo)(MnCo) 2O 4-δ were detected in the sintered membranes as well. The oxygen permeation fluxes through the 40MCO-60CPO dual phase membrane were measured at elevated temperatures (900-1000°C) with one side of the membrane exposed to synthetic air and the other side to a CO 2/He sweep gas stream. A stable oxygen permeation flux of 0.48mLcm -2min -1 was obtained for a 0.3mm thick membrane under an air/CO 2 oxygen partial pressure gradient at 1000°C. It was also found that 40MCO-60CPO dual phase membranes are stable for more than 60h even when pure CO 2 was used as the sweep gas, which recommends 40MCO-60CPO membranes as promising candidates for 4-end membrane operation in an oxy-fuel power plant.
Keywords
- CO -stable membrane, Dual phase membrane, Glycine-nitrate combustion synthesis, 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. 423-424, 15.12.2012, p. 450-458.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Rapid glycine-nitrate combustion synthesis of the CO 2-stable dual phase membrane 40Mn 1.5Co 1.5O 4-δ-60Ce 0.9Pr 0.1O 2-δ for CO 2 capture via an oxy-fuel process
AU - Luo, Huixia
AU - Jiang, Heqing
AU - Klande, Tobias
AU - Liang, Fangyi
AU - Cao, Zhengwen
AU - Wang, Haihui
AU - Caro, Jürgen
PY - 2012/12/15
Y1 - 2012/12/15
N2 - A rapid one-pot combustion synthesis method based on glycine-nitrate, has been applied to prepare a novel oxygen transporting dual phase CO 2-stable membrane of the composition 40wt% Mn 1.5Co 1.5O 4-δ-60wt% Ce 0.9Pr 0.1O 2-δ (40MCO-60CPO). After sintering at 1300°C in air for 10h, the 40MCO-60CPO membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), back scattered SEM (BSEM), and energy dispersive X-ray spectroscopy (EDXS), showing that the 40MCO-60CPO composite represents a micro-scale mixture of mainly the two phases MCO and CPO, but small amounts of MnO 2 and (MnCo)(MnCo) 2O 4-δ were detected in the sintered membranes as well. The oxygen permeation fluxes through the 40MCO-60CPO dual phase membrane were measured at elevated temperatures (900-1000°C) with one side of the membrane exposed to synthetic air and the other side to a CO 2/He sweep gas stream. A stable oxygen permeation flux of 0.48mLcm -2min -1 was obtained for a 0.3mm thick membrane under an air/CO 2 oxygen partial pressure gradient at 1000°C. It was also found that 40MCO-60CPO dual phase membranes are stable for more than 60h even when pure CO 2 was used as the sweep gas, which recommends 40MCO-60CPO membranes as promising candidates for 4-end membrane operation in an oxy-fuel power plant.
AB - A rapid one-pot combustion synthesis method based on glycine-nitrate, has been applied to prepare a novel oxygen transporting dual phase CO 2-stable membrane of the composition 40wt% Mn 1.5Co 1.5O 4-δ-60wt% Ce 0.9Pr 0.1O 2-δ (40MCO-60CPO). After sintering at 1300°C in air for 10h, the 40MCO-60CPO membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), back scattered SEM (BSEM), and energy dispersive X-ray spectroscopy (EDXS), showing that the 40MCO-60CPO composite represents a micro-scale mixture of mainly the two phases MCO and CPO, but small amounts of MnO 2 and (MnCo)(MnCo) 2O 4-δ were detected in the sintered membranes as well. The oxygen permeation fluxes through the 40MCO-60CPO dual phase membrane were measured at elevated temperatures (900-1000°C) with one side of the membrane exposed to synthetic air and the other side to a CO 2/He sweep gas stream. A stable oxygen permeation flux of 0.48mLcm -2min -1 was obtained for a 0.3mm thick membrane under an air/CO 2 oxygen partial pressure gradient at 1000°C. It was also found that 40MCO-60CPO dual phase membranes are stable for more than 60h even when pure CO 2 was used as the sweep gas, which recommends 40MCO-60CPO membranes as promising candidates for 4-end membrane operation in an oxy-fuel power plant.
KW - CO -stable membrane
KW - Dual phase membrane
KW - Glycine-nitrate combustion synthesis
KW - Oxygen permeation
UR - http://www.scopus.com/inward/record.url?scp=84867743180&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2012.08.046
DO - 10.1016/j.memsci.2012.08.046
M3 - Article
AN - SCOPUS:84867743180
VL - 423-424
SP - 450
EP - 458
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
ER -