A CO2-stable reduction-tolerant Nd-containing dual phase membrane for oxyfuel CO2 capture
- verfasst von
- Huixia Luo, Tobias Klande, Zhengwen Cao, Fangyi Liang, Haihui Wang, Jürgen Caro
- Abstract
We report a novel CO2-stable reduction-tolerant dual-phase oxygen transport membrane 40 wt% Nd0.6Sr0.4FeO 3-δ-60 wt% Ce0.9Nd0.1O 2-δ (40NSFO-60CNO), which was successfully developed by a facile one-pot EDTA-citric sol-gel method. The microstructure of the crystalline 40NSFO-60CNO phase was investigated by combined in situ X-ray diffraction (XRD), scanning electron microscopy (SEM), back scattered SEM (BSEM), and energy dispersive X-ray spectroscopy (EDXS) analyses. Oxygen permeation and long-time stability under CO2 and CH4 atmospheres were investigated. A stable oxygen flux of 0.21 cm3 min-1 cm-2 at 950 °C with undiluted CO2 as sweep gas is found which is increased to 0.48 cm3 min-1 cm-2 if the air side is coated with a porous La0.6Sr0.4CoO 3-δ (LSC) layer. All the experimental results demonstrate that the 40NSFO-60CNO not only shows good reversibility of the oxygen permeation fluxes upon temperature cycling, but also good phase stability in a CO 2 atmosphere and under the harsh conditions of partial oxidation of methane to synthesis gas up to 950 °C. This journal is
- Organisationseinheit(en)
-
Institut für Physikalische Chemie und Elektrochemie
- Externe Organisation(en)
-
Princeton University
South China University of Technology
- Typ
- Artikel
- Journal
- Journal of Materials Chemistry A
- Band
- 2
- Seiten
- 7780-7787
- Anzahl der Seiten
- 8
- ISSN
- 2050-7488
- Publikationsdatum
- 2014
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Allgemeine Chemie, Erneuerbare Energien, Nachhaltigkeit und Umwelt, Allgemeine Materialwissenschaften
- Ziele für nachhaltige Entwicklung
- SDG 7 – Erschwingliche und saubere Energie
- Elektronische Version(en)
-
https://doi.org/10.1039/c3ta14870j (Zugang:
Geschlossen)
