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Título

Synthesis of macro/mesoporous silica and carbon monoliths by using a commercial polyurethane foam as sacrificial template

AutorÁlvarez García, Sonia ; Fuertes Arias, Antonio Benito
Palabras claveCarbon
Macrocellular
Mesopores
Monolith
Porosity
Polymer
Fecha de publicaciónmay-2007
EditorElsevier
CitaciónMaterials Letters 61(11-12): 2378-2381 (2007)
ResumenA commercial macrocellular polyurethane foam was used as template to fabricate macro/mesoporous silica and carbon monoliths. These materials have a cellular structure which is a faithful replica of that of the polymeric foam. In addition, they have a high surface area and a large porosity made up of accessible mesopores. The synthesis of silica monoliths was carried out by impregnating the polymeric foam with a mixture of a silica precursor and a surfactant. The carbon monoliths were prepared by using the silica monoliths as sacrificial templates. They retain the foamy vesicular structure and exhibit a high surface area of 1800 m2 g−1 and a large porosity made up of framework-confined mesopores of around 3.4 nm.
Descripción4 pages, 3 figures, 1 table.-- Available online Sep 26, 2006.
Versión del editorhttp://dx.doi.org/10.1016/j.matlet.2006.09.017
URIhttp://hdl.handle.net/10261/11368
DOI10.1016/j.matlet.2006.09.017
ISSN0167-577X
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