Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/344688
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Waste hemp hurd as a sustainable precursor for affordable and high-rate hard carbon-based anodes in sodium-ion batteries |
Autor: | Antorán, Daniel; Alvira, Darío; Peker, M. Eser; Malón, Hugo; Irusta, Silvia CSIC ORCID CVN; Sebastián, Víctor CSIC ORCID; Manyà, Joan J. | Fecha de publicación: | 2023 | Editor: | American Chemical Society | Citación: | Energy and Fuels 37(13): 9650-9661 (2023) | Resumen: | The present study reports the promising potential of waste hemp-hurd-derived carbons as anodes in sodium-ion batteries (SIBs). Carbons were produced through an easily scalable process consisting of pyrolysis of raw biomass at 500 °C followed by mild chemical activation of the resulting char through wet impregnation with K2CO3 and subsequent heating of the solid phase (after filtration and drying) up to 700 or 800 °C under nitrogen. The best electrochemical performance was observed for the hard carbon activated at a char-K2CO3 mass ratio of 1:4 and heated up to 800 °C, which exhibited an excellent initial coulombic efficiency (73%) and achieved reversible charge capacities of 267 and 79 mAh g–1 at 0.03 and 1 A g–1, respectively. This material also exhibited an impressive cyclic stability and rate capability, with a capacity retention of 96% after 300 cycles at a current density of 2 A g–1. This more than satisfactory performance could be related to the textural and structural features of the hard carbon, which include moderate interconnected microporosity (with pore sizes below 1 nm), an appropriate concentration of defects in the carbon structure, relatively large interplanar distances, and a certain number of closed pores. | Versión del editor: | https://doi.org/10.1021/acs.energyfuels.3c01040 | URI: | http://hdl.handle.net/10261/344688 | DOI: | 10.1021/acs.energyfuels.3c01040 | E-ISSN: | 1520-5029 |
Aparece en las colecciones: | (INMA) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
wastebatter.pdf | 6,98 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
6
checked on 29-abr-2024
WEB OF SCIENCETM
Citations
1
checked on 18-feb-2024
Page view(s)
11
checked on 30-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons