Carbon foam prepared by pyrolysis of olive stones under steam

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Campo DCValorIdioma
dc.contributorLaboratorio de Materiales Avanzadosen
dc.contributor.authorVieira-Ribeiro Azzi Ríos, Rachel-
dc.contributor.authorMartinez-Escandell, Manuel-
dc.contributor.authorMolina Sabio, Miguel-
dc.contributor.authorRodríguez Reinoso, Francisco-
dc.contributor.otherUniversidad de Alicante. Departamento de Química Inorgánicaen
dc.date.accessioned2007-10-31T19:26:55Z-
dc.date.available2007-10-31T19:26:55Z-
dc.date.created2005-
dc.date.issued2006-07-
dc.identifier.citationVIEIRA-RIBEIRO AZZI RÍOS, Rachel, et al. "Carbon foam prepared by pyrolysis of olive stones under steam". Carbon. Vol. 44, Issue 8 (July 2006). ISSN 0008-6223, pp. 1448-1454en
dc.identifier.issn0008-6223-
dc.identifier.urihttp://hdl.handle.net/10045/2660-
dc.description.abstractThe experimental conditions for the pyrolysis of olive stones to produce a swelling of the particle and eventually the formation of carbon foam are described and discussed. The greatest expansion of the material occurred when 200–300 g of precursor, in the presence of steam at a pressure of 1 MPa, is introduced into a 1000 ml stainless steel reactor placed inside a sand-bath furnace previously heated to 500 °C. In a few minutes the pyrolysis begins and this exothermic process leads to a more rapid pyrolysis. A relationship between heating rate and degree of foaming for the resulting char is observed. The carbon foam obtained exhibits a low density, 0.2–0.3 g/cm3, due to the presence of meso and macropores, mainly those of size larger than 1 μm. A mechanism is suggested to explain the formation of the foam as a combination of a softening of the precursor and a fragmentation of the biopolymers to produce a ‘‘melt’’. A fast increase in temperature reduces the viscosity of the ‘‘melt’’ and facilitates the fragmentation to volatiles, responsible for the swelling of the particles and the formation of the foam.en
dc.description.sponsorshipFinancial support of Ministerio de Educacio´n y Ciencia, Spain, project number MAT2004-03480-C02-02 is acknowledged.en
dc.languageengen
dc.publisherElsevieren
dc.subjectCharen
dc.subjectPyrolysisen
dc.subjectPorosityen
dc.subject.otherQuímica Inorgánicaen
dc.titleCarbon foam prepared by pyrolysis of olive stones under steamen
dc.typeinfo:eu-repo/semantics/articleen
dc.peerreviewedsien
dc.identifier.doi10.1016/j.carbon.2005.11.028-
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.carbon.2005.11.028-
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess-
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