English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/178777
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Sustainable supercapacitor electrodes produced by the activation of biomass with sodium thiosulfate

AuthorsSevilla Solís, Marta ; Díez Nogués, Noel ; Álvarez Ferrero, Guillermo ; Fuertes Arias, Antonio Benito
KeywordsGreen synthesis
Porous carbon
Biomass
Sodium thiosulfate
S-doped carbon
Supercapacitors
Issue Date31-Jan-2019
PublisherElsevier
CitationEnergy Storage Materials 18: 356-365 (2019)
AbstractHigh-surface area carbons are produced from biomass-based products (wood sawdust and tannic acid) by means of an environmentally friendly process based on the use of sodium thiosulfate as activating agent and an inert salt (KCl) that serves as a confinement medium for the activation reaction. These porous carbons have high BET surface areas of up to 2650 m2 g-1, large pore volumes of up to 2.3 cm3 g-1 and a porosity that combines micro- and mesopores in different amounts depending on the quantity of activating agent employed. Such carbons have two additional remarkable properties: a) they are S-doped (2–6 wt% S) and b) they have good electrical conductivities in the 2.5–4.5 S cm-1 range. The above properties make these carbon materials highly attractive as supercapacitor electrodes. Indeed, when tested in a variety of electrolytes (H2SO4, TEABF4/AN and EMImTFSI) using commercial-level mass loadings, they show high specific capacitances (up to 200 F g-1, 140 F g-1 and 160 F g-1 in aqueous, organic and ionic liquid electrolytes, respectively) and high capacitance retention at high rates in all the electrolytes in combination with a good stability under cycling and floating modes.
Publisher version (URL)https://doi.org/10.1016/j.ensm.2019.01.023
URIhttp://hdl.handle.net/10261/178777
DOI10.1016/j.ensm.2019.01.023
ISSN2405-8297
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
Sustainable_supercapacitor_electrodes_Sevilla.pdf Embargoed until January 31, 20211,26 MBAdobe PDFThumbnail
View/Open    Request a copy
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.