Biomorphic activated porous carbons with complex microstructures from lignocellulosic residues

dc.creatorMacedo, JS
dc.creatorOtubo, L
dc.creatorFerreira, OP
dc.creatorGimenez, LDF
dc.creatorMazali, IO
dc.creatorBarreto, LS
dc.date2008
dc.date42005
dc.date2014-07-30T13:52:13Z
dc.date2015-11-26T17:20:21Z
dc.date2014-07-30T13:52:13Z
dc.date2015-11-26T17:20:21Z
dc.date.accessioned2018-03-29T00:07:58Z
dc.date.available2018-03-29T00:07:58Z
dc.identifierMicroporous And Mesoporous Materials. Elsevier Science Bv, v. 107, n. 3, n. 276, n. 285, 2008.
dc.identifier1387-1811
dc.identifierWOS:000251870600008
dc.identifier10.1016/j.micromeso.2007.03.020
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/55647
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/55647
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283117
dc.descriptionTransformation of coir fibers, coir pith and coconut shell endocarp microstructures is described for the formation of activated carbons. The carbonization/activation process was carried out using ZnCl2 as activating agent at 800 degrees C under CO2 atmosphere. The carbonization/activation process was evaluated by TGA/DTG measurements which evidenced an increase in the initial decomposition temperature along with increase in the carbon amount as an effect from ZnCl2. A detailed morphological analysis based on scanning electron microscopy with EDX analysis allowed the first description of the anisotropic cellular microstructure of these plant tissues and also evidenced the morphology transformation in all samples. From X-ray microtomography (micro-CT) images a random distribution of large channels was revealed for zinc containing samples (fibers and endocarp), as a result of contrast improvement in comparison to unmodified samples. Raman spectra of carbon samples were measured as a complementary microstructural evaluation on the basis of spectral deconvolution techniques, indicating that the size of graphitic crystallites as well as the size of clusters of imperfect Graphene layers depends on the type of carbon precursor. (C) 2007 Elsevier Inc. All rights reserved.
dc.description107
dc.description3
dc.description276
dc.description285
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationMicroporous And Mesoporous Materials
dc.relationMicroporous Mesoporous Mat.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectbiotemplate
dc.subjectactivated carbon
dc.subjectcarbon fibers
dc.subjectcarbonization
dc.subjectactivation
dc.subjectLuffa-cylindrica
dc.subjectRaman
dc.subjectCeramics
dc.subjectFibers
dc.subjectWater
dc.subjectMorphosynthesis
dc.subjectSpectroscopy
dc.subjectAdsorption
dc.subjectStones
dc.subjectDyes
dc.titleBiomorphic activated porous carbons with complex microstructures from lignocellulosic residues
dc.typeArtículos de revistas


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