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dc.contributor.authorGarcía-Mateos, Francisco J.
dc.contributor.authorRosas, Juana María
dc.contributor.authorRodriguez-Mirasol, Jose 
dc.contributor.authorCordero, Tomás 
dc.date.accessioned2018-07-12T10:48:05Z
dc.date.available2018-07-12T10:48:05Z
dc.date.created2018
dc.date.issued2018-07-12
dc.identifier.urihttps://hdl.handle.net/10630/16214
dc.description.abstractThe use of lignin, the second most abundant polymer in nature, along with a simple and versatile technique, electrospinning, represents an advantageous and promising approach for the preparation of carbon fibers. In previous studies, we have demonstrated that the incorporation of H3PO4 to the initial lignin solution allows for shortening the carbon fibers preparation process and that the resulting carbon fibers present P-surface groups that are of great interest for heterogeneous catalysis. Different carbon fibers catalysts have been prepared by electropinning of Alcell lignin in the absence or presence of H3PO4 as chemical activating agent. Carbonization at different temperatures between 500 and 1600 ºC allows for preparing carbon fibers with a high variety of porosity and chemical surface properties. Diverse oxygen surface groups are presented on the carbon catalysts surface. The isopropanol decomposition has been used as a catalytic test to study the acid or basic character of the prepared carbon fibers. Carbon fibers without phosphorus surface groups generate acetone as the main product of the isopropanol decomposition reaction, from 400 to 600 ºC, suggesting the basic character of these catalysts. On the contrary, phosphorus-containing carbon fibers show high acid character, producing selectivity to propylene of 100 % at temperatures between 250 and 350 ºC. The most acid carbon fiber catalyst produced a high selectivity to ethylene and dimethyl ether for the decomposition of ethanol and methanol, respectively. The conversion enhancement that the presence of oxygen in the gas phase produced for all these reactions was also studied.en_US
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. MINECO (CTQ2015-68654-R). MINECO (PTA2015-11464-I).en_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectLigninaen_US
dc.subjectCarbónen_US
dc.subject.otherAlcohol decompositionen_US
dc.subject.otherCarbon fibersen_US
dc.subject.otherLigninen_US
dc.subject.otherElectrospinningen_US
dc.titleAlcohol decomposition on basic/acid lignin-derived submicron diameter carbon fibersen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.centroFacultad de Cienciasen_US
dc.relation.eventtitleThe world Conference on Carbon 2018en_US
dc.relation.eventplaceMadrid, Españaen_US
dc.relation.eventdate1-5 de Julio de 2018en_US


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