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Zhao Z, Chen G, Escobar Cano G, Kißling PA, Stölting O, Breidenstein B, Polarz S, Bigall NC, Weidenkaff A, Feldhoff A. Multiplying Oxygen Permeability of a Ruddlesden-Popper Oxide by Orientation Control via Magnets. Angew Chem Int Ed Engl 2024; 63:e202312473. [PMID: 37987465 DOI: 10.1002/anie.202312473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/10/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
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 Nd2 NiO4+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, Nd2 NiO4+δ emerges as a promising candidate for industrial applications in air separation, syngas production, and CO2 capture under harsh conditions.
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Affiliation(s)
- Zhijun Zhao
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstr. 3A, 30167, Hannover, Germany
| | - Guoxing Chen
- Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS, Brentanostr. 2a, 63755, Alzenau, Germany
| | - Giamper Escobar Cano
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstr. 3A, 30167, Hannover, Germany
| | - Patrick A Kißling
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstr. 3A, 30167, Hannover, Germany
| | - Oliver Stölting
- Institute of Inorganic Chemistry, Leibniz University Hannover, Callinstr. 9, 30167, Hannover, Germany
| | - Bernd Breidenstein
- Institute of Production Engineering and Machine Tools, Leibniz University Hannover, An der Universität 2, 30823, Garbsen, Germany
| | - Sebastian Polarz
- Institute of Inorganic Chemistry, Leibniz University Hannover, Callinstr. 9, 30167, Hannover, Germany
| | - Nadja C Bigall
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstr. 3A, 30167, Hannover, Germany
| | - Anke Weidenkaff
- Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS, Brentanostr. 2a, 63755, Alzenau, Germany
- Department of Materials and Earth Sciences, Technical University Darmstadt, Peter-Grünberg-Str. 2, 64287, Darmstadt, Germany
| | - Armin Feldhoff
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstr. 3A, 30167, Hannover, Germany
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Whittingham AWH, Liu X, Smith RDL. How Cation Substitutions Affect the Oxygen Reduction Reaction on La
2−x
Sr
x
Ni
1−y
Fe
y
O
4. ChemCatChem 2022. [DOI: 10.1002/cctc.202101684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alexander W. H. Whittingham
- Department of Chemistry University of Waterloo 200 University Avenue W. Waterloo Ontario N2L 3G1 Canada) E-mail: smithgroup.uwaterloo.ca
| | - Xinran Liu
- Department of Chemistry University of Waterloo 200 University Avenue W. Waterloo Ontario N2L 3G1 Canada) E-mail: smithgroup.uwaterloo.ca
| | - Rodney D. L. Smith
- Department of Chemistry University of Waterloo 200 University Avenue W. Waterloo Ontario N2L 3G1 Canada) E-mail: smithgroup.uwaterloo.ca
- Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue W. Waterloo Ontario N2L 3G1 Canada
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