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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Fichtner, Maximilian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Synthesis, Structural Analysis, and Degradation Behavior of Potassium Tin Chloride as Chloride‐Ion Batteries Conversion Electrode Material
- 2023High Active Material Loading in Organic Electrodes Enabled by an in‐situ Electropolymerized π‐Conjugated Tetrakis (4‐Aminophenyl) Porphyrincitations
- 2023Synthesis and Structure Stabilization of Disordered Rock Salt Mn/V-Based Oxyfluorides as Cathode Materials for Li-Ion Batteries
- 2023Synthesis of perovskite-type high-entropy oxides as potential candidates for oxygen evolution
- 2023Addressing the Sluggish Kinetics of Sulfur Redox for High‐Energy Mg–S Batteriescitations
- 2023Addressing the Sluggish Kinetics of Sulfur Redox for High‐Energy Mg–S Batteriescitations
- 2023A π‐Conjugated Porphyrin Complex as Cathode Material Allows Fast and Stable Energy Storage in Calcium Batteriescitations
- 2023A π‐Conjugated Porphyrin Complex as Cathode Material Allows Fast and Stable Energy Storage in Calcium Batteries
- 2023Molecular Engineering of Metalloporphyrins for High‐Performance Energy Storage: Central Metal Matterscitations
- 2023Multi‐component PtFeCoNi core‐shell nanoparticles on MWCNTs as promising bifunctional catalyst for oxygen reduction and oxygen evolution reactionscitations
- 2022Dual Role of Mo 6 S 8 in Polysulfide Conversion and Shuttle for Mg–S Batteriescitations
- 2022Synthesis of perovskite-type high-entropy oxides as potential candidates for oxygen evolutioncitations
- 2022Dual Role of Mo<sub>6</sub>S<sub>8</sub> in Polysulfide Conversion and Shuttle for Mg–S Batteriescitations
- 2021Polyoxometalate Modified Separator for Performance Enhancement of Magnesium–Sulfur Batteriescitations
- 2021A self‐conditioned metalloporphyrin as a highly stable cathode for fast rechargeable magnesium batteries
- 2021A Self‐Conditioned Metalloporphyrin as a Highly Stable Cathode for Fast Rechargeable Magnesium Batteriescitations
- 2021Surface Engineering of a Mg Electrode via a New Additive to Reduce Overpotentialcitations
- 2020Multi‐Electron Reactions Enabled by Anion‐Based Redox Chemistry for High‐Energy Multivalent Rechargeable Batteriescitations
- 2020Pseudo-ternary LiBH4-LiCl-P2S5 system as structurally disordered bulk electrolyte for all-solid-state lithium batteriescitations
- 2020Multi-electron reactions enabled by anion-participated redox chemistry for high-energy multivalent rechargeable batteriescitations
- 2020Pseudo-ternary LiBH 4 ·LiCl·P 2 S 5 system as structurally disordered bulk electrolyte for all-solid-state lithium batteriescitations
- 2020Multi‐electron reactions enabled by anion‐based redox chemistry for high‐energy multivalent rechargeable batteries
- 2019Oxygen Activity in Li-Rich Disordered Rock-Salt Oxide and the Influence of $LiNbO_{3}$ Surface Modification on the Electrochemical Performancecitations
- 2019Degradation Mechanisms in Li2VO2F Li-Rich Disordered Rock-Salt Cathodescitations
- 2019Improved cycling stability in high-capacity Li-rich vanadium containing disordered rock salt oxyfluoride cathodescitations
- 2011Structure and thermodynamic properties of the NaMgH3 perovskitecitations
Places of action
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article
Structure and thermodynamic properties of the NaMgH3 perovskite
Abstract
<p>One of the bottlenecks in the implementation of a hydrogen economy is the development of storage materials that can uptake high content of H<sub>2</sub> and release it within a suitable temperature and pressure range. Among the proposed hydride systems, the perovskite NaMgH<sub>3</sub> is receiving increasing attention, not only as the Mg ternary based hydride with the highest hydrogen gravimetric (6 wt %) and volumetric density (88 g L<sup>-1</sup>) but also as a stable hydride likely to be formed in the transformation reactions of mixed hydrides. However, there is a large scatter in the literature for both the structure of the NaMgH<sub>3</sub> compound and the thermodynamics of the hydrogenation/dehydrogenation processes. In this paper a critical review of the literature data, supported by a new set of experimental (in situ synchrotron X-ray diffraction, infrared spectroscopy, high-pressure differential scanning calorimetry, pressure composition isotherms) and theoretical data is presented. The influence of ball milling on the microstructure is studied in the NaMgH <sub>3</sub> in comparison to NaH and MgH<sub>2</sub>. The infrared spectrum of NaMgH<sub>3</sub> compound, assigned by calculated and experimental results, is characterized by vibrational regions around 1100 and 600 cm<sup>-1</sup>. In situ synchrotron X-ray diffraction measurements show the desorption reaction of NaMgH<sub>3</sub> into NaH and Mg at about 673 K under 0.2 MPa H<sub>2</sub>, and the successive reabsorption of NaH and Mg back to NaMgH<sub>3</sub> at 623 K under 0.5 MPa H<sub>2</sub>. From high-pressure differential calorimetry, it was measured a formation enthalpy of 141 kJ/mol f.u for NaMgH<sub>3</sub> compound. It was confirmed the possible reaction of NaH with Mg with observation of NaMgH<sub>3</sub> formation in 1.0 MPa H<sub>2</sub>. Finally, this work provides a thermodynamic description of the NaMgH<sub>3</sub> phase by a critical assessment of the available information using the CALPHAD approach and the equilibrium pressure-temperature phase diagram is presented.</p>