English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/139320
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

Hydrothermal Carbons from Hemicellulose-Derived Aqueous Hydrolysis Products as Electrode Materials for Supercapacitors

AuthorsFalco, Camillo; Sieben, Juan Manuel; Brun, Nicolas; Sevilla Solís, Marta ; Mauelen, Torbjorn van der; Morallón, Emilia; Cazorla Amorós, Diego; Titirici, María-Magdalena
KeywordsBiomass
Carbons
Green chemistry
Microporous materials
Supercapacitors
Issue Date14-Jan-2013
PublisherWiley-VCH
CitationChemSusChem 6: 374-382 (2013)
AbstractAcid pretreatment of lignocellulosic biomass, required for bioethanol production, generates large amounts of by-products, such as lignin and hydrolyzed hemicellulose fractions, which have found so far very limited applications. In this work, we demonstrate how the recovered hemicellulose hydrolysis products can be effectively utilized as a precursor for the synthesis of functional carbon materials through hydrothermal carbonization (HTC). The morphology and chemical structure of the synthesized HTC carbons are thoroughly characterized to highlight their similarities with glucose-derived HTC carbons. Furthermore, two routes for introducing porosity within the HTC carbon structure are presented: i) silica nanoparticle hard-templating, which is shown to be a viable method for the synthesis of carbonaceous hollow spheres; and ii) KOH chemical activation. The synthesized activated carbons (ACs) show an extremely high porosity (pore volume≈1.0 cm3 g−1) mostly composed of micropores (90 % of total pore volume). Because of their favorable textural properties, the ACs are further tested as electrodes for supercapacitors, yielding very promising results (300 F g−1 at 250 mA g−1) and confirming the high suitability of KOH-activated HTC carbons derived from spruce and corncob hydrolysis products as materials for electric double layer supercapacitors.
Publisher version (URL)http://dx.doi.org/10.1002/cssc.201200817
URIhttp://hdl.handle.net/10261/139320
DOI10.1002/cssc.201200817
ISSN1864-5631
E-ISSN1864-564X
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
Hydrothermal_carbons_Falco.pdf2 MBAdobe PDFThumbnail
View/Open
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.