Carbon foam prepared by pyrolysis of olive stones under steam
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Campo DC | Valor | Idioma |
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dc.contributor | Laboratorio de Materiales Avanzados | en |
dc.contributor.author | Vieira-Ribeiro Azzi Ríos, Rachel | - |
dc.contributor.author | Martinez-Escandell, Manuel | - |
dc.contributor.author | Molina Sabio, Miguel | - |
dc.contributor.author | Rodríguez Reinoso, Francisco | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Inorgánica | en |
dc.date.accessioned | 2007-10-31T19:26:55Z | - |
dc.date.available | 2007-10-31T19:26:55Z | - |
dc.date.created | 2005 | - |
dc.date.issued | 2006-07 | - |
dc.identifier.citation | VIEIRA-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. 1448-1454 | en |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.uri | http://hdl.handle.net/10045/2660 | - |
dc.description.abstract | The 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.sponsorship | Financial support of Ministerio de Educacio´n y Ciencia, Spain, project number MAT2004-03480-C02-02 is acknowledged. | en |
dc.language | eng | en |
dc.publisher | Elsevier | en |
dc.subject | Char | en |
dc.subject | Pyrolysis | en |
dc.subject | Porosity | en |
dc.subject.other | Química Inorgánica | en |
dc.title | Carbon foam prepared by pyrolysis of olive stones under steam | en |
dc.type | info:eu-repo/semantics/article | en |
dc.peerreviewed | si | en |
dc.identifier.doi | 10.1016/j.carbon.2005.11.028 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.carbon.2005.11.028 | - |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | - |
Aparece en las colecciones: | INV - LMA - Artículos de Revistas |
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