Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/19945
Title: Sulfonated Graphene Oxide as Effective Catalyst for Conversion of 5-( Hydroxymethyl)-2-furfural into Biofuels
Author: Antunes, Margarida M.
Russo, Patricia A.
Wiper, Paul V.
Veiga, Jacinto M.
Pillinger, Martyn
Mafra, Luis
Evtuguin, Dmitry V.
Pinna, Nicola
Valente, Anabela A.
Keywords: SOLID-ACID
ETHYL LEVULINATE
EUCALYPTUS-GLOBULUS
FURAN-DERIVATIVES
CARBON NANOTUBES
GRAPHITE OXIDE
LIQUID FUELS
BIOMASS
CHEMICALS
EFFICIENT
Issue Date: 2014
Publisher: WILEY-V C H VERLAG GMBH
Abstract: The acid-catalyzed reaction of 5-(hydroxymethyl)-2-furfural with ethanol is a promising route to produce biofuels or fuel additives within the carbohydrate platform; specifically, this reaction may give 5-ethoxymethylfurfural, 5-(ethoxymethyl)furfural diethylacetal, and/or ethyl levulinate (bioEs). It is shown that sulfonated, partially reduced graphene oxide (S-RGO) exhibits a more superior catalytic performance for the production of bioEs than several other acid catalysts, which include sulfonated carbons and the commercial acid resin Amberlyst-15, which has a much higher sulfonic acid content and stronger acidity. This was attributed to the cooperative effects of the sulfonic acid groups and other types of acid sites (e.g., carboxylic acids), and to the enhanced accessibility to the active sites as a result of the 2D structure. Moreover, the acidic functionalities bonded to the S-RGO surface were more stable under the catalytic reaction conditions than those of the other solids tested, which allowed its efficient reuse.
Peer review: yes
URI: http://hdl.handle.net/10773/19945
DOI: 10.1002/cssc.201301149
ISSN: 1864-5631
Publisher Version: 10.1002/cssc.201301149
Appears in Collections:CICECO - Artigos



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