English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/11708
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 55 veces en Web of Knowledge®  |  Pub MebCentral Ver citas en PubMed Central  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar bibText (RIS)Exportar csv (RIS)
Título

Tuning of texture and surface chemistry of carbon xerogels

Autor Mahata, N.; Pereira, M. F. R.; Suárez García, Fabián ; Martínez Alonso, Amelia ; Díez Tascón, Juan Manuel ; Figueiredo, José Luís
Palabras clave Carbon xerogel
Surface activation
Oxygen plasma
Catalyst support
Fecha de publicación 10-may-2008
EditorElsevier
Citación Journal of Colloid and Interface Science 324(1-2): 150-155 (2008)
ResumenThe influence of different activation processes on the textural and surface chemical properties of carbon xerogels was studied. Carbon xerogels were prepared by the conventional sol–gel approach using resorcinol and formaldehyde; two different pHs of sol–gel processing led to carbon materials with distinct pore size distributions. The materials were subjected to controlled activation by three different methods: activation by oxygen plasma, activation by HNO3, and activation by diluted air. Treatments with HNO3 and diluted air created oxygen groups on the external surface as well as inside the pore channels, whereas plasma is more suitable for introducing oxygen groups selectively on the external surface. Nevertheless, it was shown that samples with wider pores can be oxidized to some extent on the pore interiors by plasma. Significant changes in total surface area by air activation were observed.
Descripción 6 pages, 4 figures, 5 tables.-- PMID: 18533175 [PubMed].-- Printed version published Aug 2008.
Versión del editorhttp://dx.doi.org/10.1016/j.jcis.2008.05.006
URI http://hdl.handle.net/10261/11708
DOI10.1016/j.jcis.2008.05.006
ISSN0021-9797
Aparece en las colecciones: (INCAR) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.