| DOI | Trouver le DOI : https://doi.org/10.1007/s11581-020-03871-4 |
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| Auteur | Rechercher : An, Zhongxun; Rechercher : Gong, Yanmei; Rechercher : Fang, Wenying; Rechercher : Zhao, Kangning; Rechercher : Ye, Daixin; Rechercher : Zhao, Hongbin; Rechercher : Xu, Jiaqiang; Rechercher : Zhang, Lei1; Rechercher : Zhang, Jiujun |
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| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
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| Format | Texte, Article |
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| Sujet | biomineralization; Na3V2(PO4)3; porous carbon; sodium storage |
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| Résumé | Inspired by biomineralization, we develop a facile synthesis route to obtain 3D porous foam-like Na₃V₂(PO₄)₃@C composites consisting of ultra-small Na₃V₂(PO₄)₃ particles in situ wrapped with carbon architecture derived from yeast as storing sodium cathode. 3D carbon architecture with high electrical conductivity is endowed with important effect on bio-restricting the aggregation of Na₃V₂(PO₄)₃ nanoparticles, improving Na+ diffusion coefficient. As a result, the Na₃V₂(PO₄)₃@C cathode shows good rate performance with 109 mAh g−1 and 44 mAh g−1 at 0.5 C and 20 C, respectively. Besides, the storage mechanism and structure evolution of Na₃V₂(PO₄)₃@C have been certified by ex situ XRD and electrochemical impedance spectroscopy. The unique biomineralization process enables to improve the electrochemical performances of Na₃V₂(PO₄)3 by a facile self-organized process in a friendly environment. Therefore, biomineralization is a promising way to prepare high-performance cathode material with mesoporous structure for batteries. |
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| Date de publication | 2021-01-07 |
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| Maison d’édition | Springer |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Identificateur | 3871 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | cd91aa10-c49c-4a33-930c-1af56ff0aad1 |
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| Enregistrement créé | 2022-09-23 |
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| Enregistrement modifié | 2022-09-23 |
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