Details
| Original language | English |
|---|---|
| Article number | e202312473 |
| Number of pages | 7 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 63 |
| Issue number | 8 |
| Early online date | 21 Nov 2023 |
| Publication status | Published - 2023 |
Abstract
Keywords
- Conducting Materials, Magnetic Field, Mixed Ionic Electronic Conducting Membranes, Oxygen Separation, Texture
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In: Angewandte Chemie - International Edition, Vol. 63, No. 8, e202312473, 2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Multiplying Oxygen Permeability of a Ruddlesden-Popper Oxide by Orientation Control via Magnets
AU - Zhao, Zhijun
AU - Chen, Guoxing
AU - Escobar Cano, Giamper
AU - Kißling, Patrick A.
AU - Stölting, Oliver
AU - Breidenstein, Bernd
AU - Polarz, Sebastian
AU - Bigall, Nadja C.
AU - Weidenkaff, Anke
AU - Feldhoff, Armin
N1 - Funding Information: The authors thank Prof. Dr. Motohide Matsuda for his helpful suggestions on constructing the magnetic field, Dipl.‐Ing. Lorenz Gerdes for assistance in the pole figures measurements, M.Sc. Hannah Bronner for support in the mercury porosimetry measurements, and M. Sc. Mohamed Rasheed for preparing samples during the early stage of this work. This work was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, project number: 435833397). Open Access funding enabled and organized by Projekt DEAL.
PY - 2023
Y1 - 2023
N2 - Ruddlesden-Popper-type oxides exhibit remarkable chemical stability in comparison to perovskite oxides. However, they display lower oxygen permeability. We present an approach to overcome this trade-off by leveraging the anisotropic properties of Nd2NiO4+δ. Its (a,b)-plane, having oxygen diffusion coefficient and surface exchange coefficient several orders of magnitude higher than its c-axis, can be aligned perpendicular to the gradient of oxygen partial pressure by a magnetic field (0.81 T). A stable and high oxygen flux of 1.40 mL min−1 cm−2 was achieved for at least 120 h at 1223 K by a textured asymmetric disk membrane with 1.0 mm thickness under the pure CO2 sweeping. Its excellent operational stability was also verified even at 1023 K in pure CO2. These findings highlight the significant enhancement in oxygen permeation membrane performance achievable by adjusting the grain orientation. Consequently, Nd2NiO4+δ emerges as a promising candidate for industrial applications in air separation, syngas production, and CO2 capture under harsh conditions.
AB - Ruddlesden-Popper-type oxides exhibit remarkable chemical stability in comparison to perovskite oxides. However, they display lower oxygen permeability. We present an approach to overcome this trade-off by leveraging the anisotropic properties of Nd2NiO4+δ. Its (a,b)-plane, having oxygen diffusion coefficient and surface exchange coefficient several orders of magnitude higher than its c-axis, can be aligned perpendicular to the gradient of oxygen partial pressure by a magnetic field (0.81 T). A stable and high oxygen flux of 1.40 mL min−1 cm−2 was achieved for at least 120 h at 1223 K by a textured asymmetric disk membrane with 1.0 mm thickness under the pure CO2 sweeping. Its excellent operational stability was also verified even at 1023 K in pure CO2. These findings highlight the significant enhancement in oxygen permeation membrane performance achievable by adjusting the grain orientation. Consequently, Nd2NiO4+δ emerges as a promising candidate for industrial applications in air separation, syngas production, and CO2 capture under harsh conditions.
KW - Conducting Materials
KW - Magnetic Field
KW - Mixed Ionic Electronic Conducting Membranes
KW - Oxygen Separation
KW - Texture
UR - http://www.scopus.com/inward/record.url?scp=85179987436&partnerID=8YFLogxK
U2 - 10.1002/anie.202312473
DO - 10.1002/anie.202312473
M3 - Article
AN - SCOPUS:85179987436
VL - 63
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 8
M1 - e202312473
ER -