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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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Triolo, Claudia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Role of the Microstructure in the Li-Storage Performance of Spinel-Structured High-Entropy (Mn,Fe,Co,Ni,Zn) Oxide Nanofiberscitations
- 2023Charge Storage Mechanism in Electrospun Spinel‐Structured High‐Entropy (Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Zn<sub>0.2</sub>)<sub>3</sub>O<sub>4</sub> Oxide Nanofibers as Anode Material for Li‐Ion Batteriescitations
- 2022High-Entropy Spinel Oxides Produced via Sol-Gel and Electrospinning and Their Evaluation as Anodes in Li-Ion Batteriescitations
- 2021Synthesis, Characterization and Photocatalytic Behavior ofSiO2@nitrized-TiO2Nanocomposites Obtained by aStraightforward Novel Approachcitations
- 2020Comparing the Performance of Nb2O5 Composites with Reduced Graphene Oxide and Amorphous Carbon in Li‐ and Na‐Ion Electrochemical Storage Devices
- 2019Transition metal oxides on reduced graphene oxide nanocomposites: Evaluation of physicochemical propertiescitations
- 2018Synthesis and characterization of Fe2O3/reduced graphene oxide nanocomposite as a high-performance anode material for sodium-ion batteries
- 2017Synthesis, CO2 sorption and capacitive properties of novel protic poly(ionic liquid)scitations
- 2017Capacitive properties of the hydrophobic [2-(methacryloyloxy)ethyl]-trimethyl ammonium nonafluoro-1-butanesulfonate poly(ionic liquid) thin filmcitations
- 2016Reliability model application for power devices using mechanical strain real time mappingcitations
- 2016Electrospun coral-like α-Fe2O3 nanostructures for photoelectrochemical water splitting
- 2015Si-MODIFIED SOLVOTHERMAL SYTHESIS OF α-Fe2O3 FOR PHOTOELECTROCHEMICAL APPLICATIONS
Places of action
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article
Role of the Microstructure in the Li-Storage Performance of Spinel-Structured High-Entropy (Mn,Fe,Co,Ni,Zn) Oxide Nanofibers
Abstract
<jats:title>Abstract</jats:title><jats:p>High-entropy oxides with spinel structure (SHEOs) are promising anode materials for next-generation lithium-ion batteries (LIBs). In this work, electrospun (Mn,Fe,Co,Ni,Zn) SHEO nanofibers produced under different conditions are evaluated as anode materials in LIBs and thoroughly characterised by a combination of analytical techniques. The variation of metal load (19.23 or 38.46 wt% relative to the polymer) in the precursor solution and of calcination conditions (700°C/0.5 h, or 700°C/2 h followed by 900°C/2 h) affects the morphology, microstructure, crystalline phase, and surface composition of the pristine SHEO nanofibers and the resulting electrochemical performance, whereas mechanism of Li storage does not substantially change. Causes of long-term (650 cycles) capacity fading are elucidated via ex situ synchrotron X-ray absorption spectroscopy. The results evidence that the larger amounts of Fe, Co, and Ni cations irreversibly reduced to the metallic form during cycling are responsible for faster capacity fading in nanofibers calcined under milder conditions. The microstructure of the active material plays a key role. Nanofibers composed by larger and better-crystallized grains, where a stable solid/electrolyte interphase forms, exhibit superior long-term stability (453 mAh g1 after 550 cycles at 0.5 A g1) and rate-capability (210 mAh g1 at 2 A g1).</jats:p>