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MIL-88A Metal-Organic Framework as a Stable Sulfur-Host Cathode for Long-Cycle Li-S Batteries
dc.contributor.author | Benítez de la Torre, A. | |
dc.contributor.author | Amaro-Gahete, J. | |
dc.contributor.author | Esquivel, Dolores | |
dc.contributor.author | Romero-Salguero, F.J. | |
dc.contributor.author | Morales, Julián | |
dc.contributor.author | Caballero, Álvaro | |
dc.date.accessioned | 2022-03-07T10:24:12Z | |
dc.date.available | 2022-03-07T10:24:12Z | |
dc.date.issued | 2020 | |
dc.identifier.uri | http://hdl.handle.net/10396/22656 | |
dc.description.abstract | Lithium-sulfur (Li-S) batteries have received enormous interest as a promising energy storage system to compete against limited, non-renewable, energy sources due to their high energy density, sustainability, and low cost. Among the main challenges of this technology, researchers are concentrating on reducing the well-known “shuttle effect” that generates the loss and corrosion of the active material during cycling. To tackle this issue, metal-organic frameworks (MOF) are considered excellent sulfur host materials to be part of the cathode in Li-S batteries, showing efficient confinement of undesirable polysulfides. In this study, MIL-88A, based on iron fumarate, was synthesised by a simple and fast ultrasonic-assisted probe method. Techniques such as X-ray diffraction (XRD), Raman spectroscopy, Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), and N2 adsorption/desorption isotherms were used to characterise structural, morphological, and textural properties. The synthesis process led to MIL-88A particles with a central prismatic portion and pyramidal terminal portions, which exhibited a dual micro-mesoporous MOF system. The composite MIL-88A@S was prepared, by a typical melt-diffusion method at 155 °C, as a cathodic material for Li-S cells. MIL-88A@S electrodes were tested under several rates, exhibiting stable specific capacity values above 400 mAh g−1 at 0.1 C (1C = 1675 mA g−1). This polyhedral and porous MIL-88A was found to be an effective cathode material for long cycling in Li-S cells, retaining a reversible capacity above 300 mAh g−1 at 0.5 C for more than 1000 cycles, and exhibiting excellent coulombic efficiency. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Nanomaterials 10(3), 424 (2020) | es_ES |
dc.subject | Li-S battery | es_ES |
dc.subject | Metal-organic framework | es_ES |
dc.subject | Sulfur composite | es_ES |
dc.subject | Polysulfides confinement | es_ES |
dc.title | MIL-88A Metal-Organic Framework as a Stable Sulfur-Host Cathode for Long-Cycle Li-S Batteries | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/nano10030424 | es_ES |
dc.relation.projectID | Gobierno de España. RTI2018-101611-B-I00 | es_ES |
dc.relation.projectID | Gobierno de España. MAT2017-87541-R | es_ES |
dc.relation.projectID | Gobierno de España. FPU17/03981 | es_ES |
dc.relation.projectID | Junta de Andalucía. FQM-346 | es_ES |
dc.relation.projectID | Junta de Andalucía. FQM-175 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |