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Pflug C, Rudolph D, Schleid T, Kohlmann H. Hydrogenation Reaction Pathways and Crystal Structures of La
2
H
2
Se, La
2
H
3
Se and La
2
H
4
Se. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202101095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christian Pflug
- Leipzig University Institute for Inorganic Chemistry Johannisallee 29 04103 Leipzig Germany
| | - Daniel Rudolph
- Institute for Inorganic Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Thomas Schleid
- Institute for Inorganic Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Holger Kohlmann
- Leipzig University Institute for Inorganic Chemistry Johannisallee 29 04103 Leipzig Germany
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2
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Ubukata H, Takeiri F, Shitara K, Tassel C, Saito T, Kamiyama T, Broux T, Kuwabara A, Kobayashi G, Kageyama H. Anion ordering enables fast H - conduction at low temperatures. SCIENCE ADVANCES 2021; 7:7/23/eabf7883. [PMID: 34078603 PMCID: PMC8172174 DOI: 10.1126/sciadv.abf7883] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
The introduction of chemical disorder by substitutional chemistry into ionic conductors is the most commonly used strategy to stabilize high-symmetric phases while maintaining ionic conductivity at lower temperatures. In recent years, hydride materials have received much attention owing to their potential for new energy applications, but there remains room for development in ionic conductivity below 300°C. Here, we show that layered anion-ordered Ba2-δH3-2δ X (X = Cl, Br, and I) exhibit a remarkable conductivity, reaching 1 mS cm-1 at 200°C, with low activation barriers allowing H- conduction even at room temperature. In contrast to structurally related BaH2 (i.e., Ba2H4), the layered anion order in Ba2-δH3-2δ X, along with Schottky defects, likely suppresses a structural transition, rather than the traditional chemical disorder, while retaining a highly symmetric hexagonal lattice. This discovery could open a new direction in electrochemical use of hydrogen in synthetic processes and energy devices.
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Affiliation(s)
- Hiroki Ubukata
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Fumitaka Takeiri
- Department of Materials Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Kazuki Shitara
- Joining and Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Cédric Tassel
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takashi Saito
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1106, Japan
- Materials and Life Science Division, J-PARC Center, Tokai, Naka, Ibaraki 319-1195, Japan
| | - Takashi Kamiyama
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1106, Japan
| | - Thibault Broux
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Akihide Kuwabara
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya, Aichi 456-8587, Japan
| | - Genki Kobayashi
- Department of Materials Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
- CREST, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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3
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Affiliation(s)
- Nathalie Kunkel
- Chair for Inorganic Chemistry with Focus on Novel Materials; Department of Chemistry; Technical University of Munich; Lichtenbergstr. 4 85747 Garching Germany
| | - Thomas Wylezich
- Chair for Inorganic Chemistry with Focus on Novel Materials; Department of Chemistry; Technical University of Munich; Lichtenbergstr. 4 85747 Garching Germany
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Sharma M, Didelot E, Spyratou A, Lawson Daku LM, Černý R, Hagemann H. Halide Free M(BH4)2 (M = Sr, Ba, and Eu) Synthesis, Structure, and Decomposition. Inorg Chem 2016; 55:7090-7. [DOI: 10.1021/acs.inorgchem.6b00931] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manish Sharma
- Department
of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH1211 Geneva 4, Switzerland
| | - Emilie Didelot
- Laboratory
of Crystallography, Department of Quantum Matter Physics, University of Geneva, 24, quai Ernest-Ansermet, CH1211 Geneva 4, Switzerland
| | - Alexandra Spyratou
- Department
of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH1211 Geneva 4, Switzerland
| | - Latévi Max Lawson Daku
- Department
of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH1211 Geneva 4, Switzerland
| | - Radovan Černý
- Laboratory
of Crystallography, Department of Quantum Matter Physics, University of Geneva, 24, quai Ernest-Ansermet, CH1211 Geneva 4, Switzerland
| | - Hans Hagemann
- Department
of Physical Chemistry, University of Geneva, 30, quai Ernest-Ansermet, CH1211 Geneva 4, Switzerland
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Kunkel N, Rudolph D, Meijerink A, Rommel S, Weihrich R, Kohlmann H, Schleid T. Green Luminescence of Divalent Europium in the Hydride Chloride EuHCl. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400531] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Blankenship TV, Dickman MJ, van de Burgt LJ, Latturner SE. Ca12InC13–x and Ba12InC18H4: Alkaline-Earth Indium Allenylides Synthesized in AE/Li Flux (AE = Ca, Ba). Inorg Chem 2014; 54:914-21. [DOI: 10.1021/ic502315m] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Trevor V. Blankenship
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Matthew J. Dickman
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Lambertus J. van de Burgt
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Susan E. Latturner
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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