Ruddlesden-Popper-type Nd2-xNi1-yCuyO4±δ layered oxides as candidate materials for MIEC-type ceramic membranes

Gędziorowski, Bartłomiej; Cichy, Kacper; Niemczyk, Anna; Olszewska, Anna; Zhang, Zijia; Kopeć, Szymon; Zheng, Kun; Marzec, Mateusz; Gajewska, Marta; Du, Zhenmin; Zhao, Hailei; Świerczek, Konrad

doi:10.1016/j.jeurceramsoc.2020.04.054

Cited by 12 publications

(4 citation statements)

References 64 publications

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“…The presence of NiO secondary phase is evident in XRD patterns of Nd 1.95 NiO 4+δ and (Nd 2– x Ca x ) 0.975 NiO 4+δ ( x = 0.1–0.5) reported in ref . Segregation of NiO in Nd 1.9 Ni 0.75 Cu 0.25 O 4±δ samples was revealed by SEM/EDS analysis and supported by XRD data . Furthermore, lattice parameters of Nd 2– x Ni 1– y Cu y O 4±δ nickelates were shown to be essentially independent of x for the entire range of compositions ( x = 0 and 0.1; y = 0.0–1.0) .…”

Section: Resultssupporting

confidence: 61%

“…Similar inconsistencies can be found in available literature reports on A-site-deficient nickelates derived from Nd 2 NiO 4+δ – and Pr 2 NiO 4+δ . – The following communications are worth highlighting, among others, in the context of the present work. Boehm et al claimed the formation of phase-pure Nd 2– x NiO 4+δ ( x = 0–0.10) nickelates with an orthorhombic K 2 NiF 4 -type structure.…”

Section: Introductionsupporting

confidence: 78%

“…Segregation of NiO in Nd 1.9 Ni 0.75 Cu 0.25 O 4±δ samples was revealed by SEM/EDS analysis and supported by XRD data. 36 Furthermore, lattice parameters of Nd 2−x Ni 1−y Cu y O 4±δ nickelates were shown to be essentially independent of x for the entire range of compositions (x = 0 and 0.1; y = 0.0−1.0). 36 These observations imply that the concentration of cation vacancies that can be introduced into the neodymium sublattice of Nd 2−x NiO 4+δ is very limited, 0 ≤ x < 0.05.…”

Section: Computer Simulations Of the La 2−mentioning

confidence: 95%

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Intolerance of the Ruddlesden–Popper La₂NiO_4+δ Structure to A-Site Cation Deficiency

Bamburov,

Naumovich,

Khalyavin

et al. 2023

Chem. Mater.

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Tuning the cation nonstoichiometry is an effective approach to modify the stability and functional properties and to assist the surface redox engineering of perovskite oxides. This work addresses the possibility of the introduction of cation vacancies into the Ln sublattice of perovskite-related Ruddlesden–Popper Ln2NiO4+δ nickelates. La2–x NiO4±δ (x = 0–0.10) and Nd1.95NiO4±δ were selected as model compositions. Ceramic materials were sintered in air at 1350–1450 °C for 10–40 h and characterized by the combination of experimental (X-ray diffraction, neutron diffraction, scanning electron microscopy, energy-dispersive spectroscopy, thermogravimetric analysis, and measurement of electrical transport properties) and computational (static lattice and molecular dynamics simulations) methods. All nominally A-site-deficient materials comprised nickel oxide as a secondary phase. The fraction of NiO impurities in the La2–x NiO4±δ series increased with x, while the parameters of the orthorhombic crystal lattice remained composition-independent. Refinement of neutron diffraction patterns of La2NiO4+δ and La1.95NiO4±δ yielded the cation ratio La/Ni = 2:1 in the Ruddlesden–Popper phase for both materials. The results indicate that the concentration of cation vacancies that can be tolerated in the A sublattice of the Ruddlesden–Popper La2NiO4+δ structure is ≪1 at. %, if any. The experimental findings are supported by computer simulations, showing that the formation of lanthanum-deficient La1.95NiO4 is energetically less favorable compared to cation-stoichiometric La2NiO4+δ coexisting with NiO or La4Ni3O10 secondary phases and that introduction of lanthanum vacancy results in enhanced diffusivity of A-site cations at elevated temperatures and destabilization of the Ruddlesden–Popper structure. Within experimental error, the nominal cation deficiency had no effect on the electrical conductivity and oxygen permeability of La2–x NiO4±δ ceramics.

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Section: Resultssupporting

confidence: 61%

Section: Introductionsupporting

confidence: 78%

Section: Computer Simulations Of the La 2−mentioning

confidence: 95%

See 1 more Smart Citation

Intolerance of the Ruddlesden–Popper La₂NiO_4+δ Structure to A-Site Cation Deficiency

Bamburov,

Naumovich,

Khalyavin

et al. 2023

Chem. Mater.

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“…The textured asymmetric NNO membranes achieve oxygen flux higher than other K 2 NiF 4 -type materials and is comparable to M IIA (TM)O 3 -type perovskites in case of He sweeping. [24] Moreover, thanks to its outstanding CO 2 -stability, it demonstrates the highest performance regarding to the flux and a stable operational duration under CO 2 sweeping to the best of our knowledge.…”

mentioning

confidence: 91%

Multiplying Oxygen Permeability of a Ruddlesden‐Popper Oxide by Orientation Control via Magnets

Zhao,

Chen,

Escobar Cano

et al. 2023

Angew Chem Int Ed

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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.

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Multiplying Oxygen Permeability of a Ruddlesden‐Popper Oxide by Orientation Control via Magnets

Zhao,

Chen,

Escobar Cano

et al. 2023

Angewandte Chemie

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Ruddlesden-Popper-type Nd2-xNi1-yCuyO4±δ layered oxides as candidate materials for MIEC-type ceramic membranes

Cited by 12 publications

References 64 publications

Intolerance of the Ruddlesden–Popper La₂NiO_4+δ Structure to A-Site Cation Deficiency

Intolerance of the Ruddlesden–Popper La₂NiO_4+δ Structure to A-Site Cation Deficiency

Multiplying Oxygen Permeability of a Ruddlesden‐Popper Oxide by Orientation Control via Magnets

Multiplying Oxygen Permeability of a Ruddlesden‐Popper Oxide by Orientation Control via Magnets

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Ruddlesden-Popper-type Nd2-xNi1-yCuyO4±δ layered oxides as candidate materials for MIEC-type ceramic membranes

Cited by 12 publications

References 64 publications

Intolerance of the Ruddlesden–Popper La2NiO4+δ Structure to A-Site Cation Deficiency

Intolerance of the Ruddlesden–Popper La2NiO4+δ Structure to A-Site Cation Deficiency

Multiplying Oxygen Permeability of a Ruddlesden‐Popper Oxide by Orientation Control via Magnets

Multiplying Oxygen Permeability of a Ruddlesden‐Popper Oxide by Orientation Control via Magnets

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Intolerance of the Ruddlesden–Popper La₂NiO_4+δ Structure to A-Site Cation Deficiency

Intolerance of the Ruddlesden–Popper La₂NiO_4+δ Structure to A-Site Cation Deficiency