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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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Mourdikoudis, Stefanos
Universidade de Vigo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Reaction mechanism and performance of innovative 2D germanane‐silicane alloys: SixGe1−xH electrodes in lithium‐ion batteriescitations
- 2022Two-dimensional layered chromium selenophosphate: advanced high-performance anode material for lithium-ion batteriescitations
- 2022Improved Electrochemical Performance of NTs-WS2@C Nanocomposites for Lithium-Ion and Sodium-Ion Batteriescitations
- 2021Dimpled SiO2@γ-Fe2O3 nanocomposites – fabrication and use for arsenic adsorption in aqueous mediumcitations
- 2018Air-stable anisotropic monocrystalline nickel nanowires characterized using electron holographycitations
- 2017Synthesis and electrical characterization of monocrystalline nickel nanorods and Ni-CNT composites
- 2014A study on the synthesis of Ni50Co50 alloy nanostructures with tuned morphology through metal-organic chemical routescitations
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article
Reaction mechanism and performance of innovative 2D germanane‐silicane alloys: SixGe1−xH electrodes in lithium‐ion batteries
Abstract
This is the final version. Available from Wiley via the DOI in this record. ; Data Availability Statement: The datasets generated during and/or analyzed during the study are accessible via the Zenodo repository: 10.5281/zenodo.10951039. ; The adjustable structures and remarkable physicochemical properties of 2D monoelemental materials, such as silicene and germanene, have attracted significant attention in recent years. They can be transformed into silicane (SiH) and germanane (GeH) through covalent functionalization via hydrogen atom termination. However, synthesizing these materials with a scalable and low-cost fabrication process to achieve high-quality 2D SiH and GeH poses challenges. Herein, groundbreaking 2D SiH and GeH materials with varying compositions, specifically Si0.25Ge0.75H, Si0.50Ge0.50H, and Si0.75Ge0.25H, are prepared through a simple and efficient chemical exfoliation of their Zintl phases. These 2D materials offer significant advantages, including their large surface area, high mechanical flexibility, rapid electron mobility, and defect-rich loose-layered structures. Among these compositions, the Si0.50Ge0.50H electrode demonstrates the highest discharge capacity, reaching up to 1059 mAh g−1 after 60 cycles at a current density of 75 mA g−1. A comprehensive ex-situ electrochemical analysis is conducted to investigate the reaction mechanisms of lithiation/delithiation in Si0.50Ge0.50H. Subsequently, an initial assessment of the c-Li15(SixGe1-x)4 phase after lithiation and the a-Si0.50Ge0.50 phase after delithiation is presented. Hence, this study contributes crucial insights into the (de)lithiation reaction mechanisms within germanane-silicane alloys. Such understanding is pivotal for mastering promising materials that amalgamate the finest properties of silicon and germanium. ; European Union's Horizon ; Education Department Fund and Distinguished Young Scholars Fund of Hunan Province, China ; Ministry of Education Youth and Sports ; Ministry of Education, Youth, and Sports of the Czech ...