1
|
Gamon J, Bassat JM, Villesuzanne A, Duttine M, Batuk M, Vandemeulebroucke D, Hadermann J, Alassani F, Weill F, Durand E, Demourgues A. Impact of Anionic Ordering on the Iron Site Distribution and Valence States in Oxyfluoride Sr 2FeO 3+xF 1-x ( x = 0.08, 0.2) with a Layered Perovskite Network. Inorg Chem 2023. [PMID: 37382143 DOI: 10.1021/acs.inorgchem.3c01455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Sr2FeO3F, an oxyfluoride compound with an n = 1 Ruddlesden-Popper structure, was identified as a potential interesting mixed ionic and electronic conductor (MIEC). The phase can be synthesized under a range of different pO2 atmospheres, leading to various degrees of fluorine for oxygen substitution and Fe4+ content. A structural investigation and thorough comparison of both argon- and air-synthesized compounds were performed by combining high-resolution X-ray and electron diffraction, high-resolution scanning transmission electron microscopy, Mössbauer spectroscopy, and DFT calculations. While the argon-synthesized phase shows a well-behaved O/F ordered structure, this study revealed that oxidation leads to averaged large-scale anionic disorder on the apical site. In the more oxidized Sr2FeO3.2F0.8 oxyfluoride, containing 20% of Fe4+, two different Fe positions can be identified with a 32%/68% occupancy (P4/nmm space group). This originates due to the presence of antiphase boundaries between ordered domains within the grains. Relations between site distortion and valence states as well as stability of apical anionic sites (O vs F) are discussed. This study paves the way for further studies on both ionic and electronic transport properties of Sr2FeO3.2F0.8 and its use in MIEC-based devices, such as solid oxide fuel cells.
Collapse
Affiliation(s)
- Jacinthe Gamon
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Jean-Marc Bassat
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | | | - Mathieu Duttine
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Maria Batuk
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | | | - Joke Hadermann
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Fouad Alassani
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - François Weill
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Etienne Durand
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Alain Demourgues
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| |
Collapse
|
2
|
Sasaki S, Giri S, Cassidy SJ, Dey S, Batuk M, Vandemeulebroucke D, Cibin G, Smith RI, Holdship P, Grey CP, Hadermann J, Clarke SJ. Anion redox as a means to derive layered manganese oxychalcogenides with exotic intergrowth structures. Nat Commun 2023; 14:2917. [PMID: 37217479 DOI: 10.1038/s41467-023-38489-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 05/03/2023] [Indexed: 05/24/2023] Open
Abstract
Topochemistry enables step-by-step conversions of solid-state materials often leading to metastable structures that retain initial structural motifs. Recent advances in this field revealed many examples where relatively bulky anionic constituents were actively involved in redox reactions during (de)intercalation processes. Such reactions are often accompanied by anion-anion bond formation, which heralds possibilities to design novel structure types disparate from known precursors, in a controlled manner. Here we present the multistep conversion of layered oxychalcogenides Sr2MnO2Cu1.5Ch2 (Ch = S, Se) into Cu-deintercalated phases where antifluorite type [Cu1.5Ch2]2.5- slabs collapsed into two-dimensional arrays of chalcogen dimers. The collapse of the chalcogenide layers on deintercalation led to various stacking types of Sr2MnO2Ch2 slabs, which formed polychalcogenide structures unattainable by conventional high-temperature syntheses. Anion-redox topochemistry is demonstrated to be of interest not only for electrochemical applications but also as a means to design complex layered architectures.
Collapse
Affiliation(s)
- Shunsuke Sasaki
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000, Nantes, France
| | - Souvik Giri
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Simon J Cassidy
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Sunita Dey
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Maria Batuk
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Daphne Vandemeulebroucke
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Giannantonio Cibin
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Ronald I Smith
- The ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Philip Holdship
- Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, UK
| | - Clare P Grey
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Joke Hadermann
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Simon J Clarke
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK.
| |
Collapse
|
3
|
Poppe R, Vandemeulebroucke D, Neder RB, Hadermann J. Quantitative analysis of diffuse electron scattering in the lithium-ion battery cathode material Li 1.2Ni 0.13Mn 0.54Co 0.13O 2. IUCrJ 2022; 9:695-704. [PMID: 36071802 PMCID: PMC9438490 DOI: 10.1107/s2052252522007746] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
In contrast to perfectly periodic crystals, materials with short-range order produce diffraction patterns that contain both Bragg reflections and diffuse scattering. To understand the influence of short-range order on material properties, current research focuses increasingly on the analysis of diffuse scattering. This article verifies the possibility to refine the short-range order parameters in submicrometre-sized crystals from diffuse scattering in single-crystal electron diffraction data. The approach was demonstrated on Li1.2Ni0.13Mn0.54Co0.13O2, which is a state-of-the-art cathode material for lithium-ion batteries. The intensity distribution of the 1D diffuse scattering in the electron diffraction patterns of Li1.2Ni0.13Mn0.54Co0.13O2 depends on the number of stacking faults and twins in the crystal. A model of the disorder in Li1.2Ni0.13Mn0.54Co0.13O2 was developed and both the stacking fault probability and the percentage of the different twins in the crystal were refined using an evolutionary algorithm in DISCUS. The approach was applied on reciprocal space sections reconstructed from 3D electron diffraction data since they exhibit less dynamical effects compared with in-zone electron diffraction patterns. A good agreement was achieved between the calculated and the experimental intensity distribution of the diffuse scattering. The short-range order parameters in submicrometre-sized crystals can thus successfully be refined from the diffuse scattering in single-crystal electron diffraction data using an evolutionary algorithm in DISCUS.
Collapse
Affiliation(s)
- Romy Poppe
- University of Antwerp, Groenenborgerlaan 171, Antwerp B-2020, Belgium
| | | | - Reinhard B. Neder
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 3, D-91058 Erlangen, Germany
| | - Joke Hadermann
- University of Antwerp, Groenenborgerlaan 171, Antwerp B-2020, Belgium
| |
Collapse
|
4
|
Vandemeulebroucke D, Batuk M, Roussel P, Hadermann J. In situ and ex situ electron diffraction revealing diverse structural transformations of La
x
Sr 2−x
MnO 4−δ upon gas reduction. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322092786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
|
5
|
Poppe R, Vandemeulebroucke D, Neder R, Hadermann J. Quantitative analysis of diffuse electron scattering in the lithium-ion battery cathode material Li 1.2Ni 0.13Mn 0.54Co 0.13O 2. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
|
6
|
Hadermann J, Batuk M, Vandemeulebroucke D. 3DED in situ single-crystal studies on submicron-sized particles during redox reactions in gas environments and electrochemical reactions. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322090313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
|
7
|
Batuk M, Vandemeulebroucke D, Hadermann J. Uncovering hidden complexity in oxygen-deficient perovskites. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321095519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
8
|
Vandemeulebroucke D, Batuk M, Hadermann J. Investigating structure transformations of La
x
Sr 2−x
MnO 4−δ using in situ 3D electron diffraction in a gas environment. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321087547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
9
|
Poppe R, Vandemeulebroucke D, Neder RB, Hadermann J. Quantitative analysis of diffuse electron scattering in the lithium ion battery cathode material Li 1.2Ni 0.13Mn 0.54Co 0.13O 2. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321093119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
10
|
Batuk M, Vandemeulebroucke D, Hadermann J. Following structure evolution of SrFeO
x
in redox reactions using in situ 3D electron diffraction. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321092679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|