Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 84-92 |
| Seitenumfang | 9 |
| Fachzeitschrift | Journal of Materials Chemistry A |
| Jahrgang | 6 |
| Ausgabenummer | 1 |
| Frühes Online-Datum | 30 Okt. 2017 |
| Publikationsstatus | Veröffentlicht - 7 Jan. 2018 |
Abstract
Oxygen permeation, stability and chemical bonding characteristics of 40 wt% Nd 0.6Sr 0.4CoO 3-δ-60 wt% Ce 0.9Nd 0.1O 2-δ (40NSCO-60CNO) dual-phase composite membrane reactors were investigated. The 40NSCO-60CNO oxygen permeable membrane was prepared via an in situ one-pot one-step EDTA-citric acid method. The crystal structure of the 40NSCO-60CNO dual phase material was characterized by X-ray diffraction (XRD) and in situ XRD. The microstructure was investigated using transmission electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM) combined with energy-dispersive X-ray spectroscopy (EDXS) and electron energy-loss spectroscopy (EELS). The results show that the 40NSCO-60CNO composite represents a micro-scale mixture of only the two pure phases NSCO and CNO. The oxygen permeation fluxes through the 40NSCO-60CNO dual phase membrane were measured at elevated temperatures (900-1000 °C) with one side of it exposed to synthetic air and the other side to a flowing He gas stream. A stable oxygen permeation rate of 0.90 mL cm -2 min -1 was obtained with a 0.4 mm thick membrane under an air/He oxygen partial pressure gradient at 1000 °C. The 40NSCO-60CNO dual phase membrane with a thickness of 0.6 mm showed a stable oxygen flux of 0.55 mL cm -2 min -1 at 950 °C for 100 h under pure CO 2 sweeping.
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- Chemie (insg.)
- Allgemeine Chemie
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Energie (insg.)
- Erneuerbare Energien, Nachhaltigkeit und Umwelt
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in: Journal of Materials Chemistry A, Jahrgang 6, Nr. 1, 07.01.2018, S. 84-92.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - A novel dual phase membrane 40 wt% Nd0.6Sr0.4CoO3-delta-60 wt% Ce0.9Nd0.1O2-delta: design, synthesis and properties
AU - He, Yuan
AU - Shi, Lei
AU - Wu, Fan
AU - Xie, Weiwei
AU - Wang, Shu
AU - Yan, Dong
AU - Liu, Peijiang
AU - Li, Man-Rong
AU - Caro, Jürgen
AU - Luo, Huixia
PY - 2018/1/7
Y1 - 2018/1/7
N2 - Oxygen permeation, stability and chemical bonding characteristics of 40 wt% Nd 0.6Sr 0.4CoO 3-δ-60 wt% Ce 0.9Nd 0.1O 2-δ (40NSCO-60CNO) dual-phase composite membrane reactors were investigated. The 40NSCO-60CNO oxygen permeable membrane was prepared via an in situ one-pot one-step EDTA-citric acid method. The crystal structure of the 40NSCO-60CNO dual phase material was characterized by X-ray diffraction (XRD) and in situ XRD. The microstructure was investigated using transmission electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM) combined with energy-dispersive X-ray spectroscopy (EDXS) and electron energy-loss spectroscopy (EELS). The results show that the 40NSCO-60CNO composite represents a micro-scale mixture of only the two pure phases NSCO and CNO. The oxygen permeation fluxes through the 40NSCO-60CNO dual phase membrane were measured at elevated temperatures (900-1000 °C) with one side of it exposed to synthetic air and the other side to a flowing He gas stream. A stable oxygen permeation rate of 0.90 mL cm -2 min -1 was obtained with a 0.4 mm thick membrane under an air/He oxygen partial pressure gradient at 1000 °C. The 40NSCO-60CNO dual phase membrane with a thickness of 0.6 mm showed a stable oxygen flux of 0.55 mL cm -2 min -1 at 950 °C for 100 h under pure CO 2 sweeping.
AB - Oxygen permeation, stability and chemical bonding characteristics of 40 wt% Nd 0.6Sr 0.4CoO 3-δ-60 wt% Ce 0.9Nd 0.1O 2-δ (40NSCO-60CNO) dual-phase composite membrane reactors were investigated. The 40NSCO-60CNO oxygen permeable membrane was prepared via an in situ one-pot one-step EDTA-citric acid method. The crystal structure of the 40NSCO-60CNO dual phase material was characterized by X-ray diffraction (XRD) and in situ XRD. The microstructure was investigated using transmission electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM) combined with energy-dispersive X-ray spectroscopy (EDXS) and electron energy-loss spectroscopy (EELS). The results show that the 40NSCO-60CNO composite represents a micro-scale mixture of only the two pure phases NSCO and CNO. The oxygen permeation fluxes through the 40NSCO-60CNO dual phase membrane were measured at elevated temperatures (900-1000 °C) with one side of it exposed to synthetic air and the other side to a flowing He gas stream. A stable oxygen permeation rate of 0.90 mL cm -2 min -1 was obtained with a 0.4 mm thick membrane under an air/He oxygen partial pressure gradient at 1000 °C. The 40NSCO-60CNO dual phase membrane with a thickness of 0.6 mm showed a stable oxygen flux of 0.55 mL cm -2 min -1 at 950 °C for 100 h under pure CO 2 sweeping.
UR - http://www.scopus.com/inward/record.url?scp=85038632674&partnerID=8YFLogxK
U2 - 10.1039/c7ta07842k
DO - 10.1039/c7ta07842k
M3 - Article
VL - 6
SP - 84
EP - 92
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 1
ER -