2024-03-28T13:36:55Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/113682018-11-15T11:03:27Zcom_10261_84com_10261_5col_10261_337
Synthesis of macro/mesoporous silica and carbon monoliths by using a commercial polyurethane foam as sacrificial template
Álvarez García, Sonia
Fuertes Arias, Antonio Benito
Carbon
Macrocellular
Mesopores
Monolith
Porosity
Polymer
4 pages, 3 figures, 1 table.-- Available online Sep 26, 2006.
A 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.
The financial support for this research work provided by the Spanish MCyT (MAT2005-00262) is gratefully acknowledged. S. Alvarez thanks the Spanish MCyT for her FPI (BES-2003-0134) grant.
Peer reviewed
2009-03-09T08:41:12Z
2009-03-09T08:41:12Z
2007-05
artículo
http://purl.org/coar/resource_type/c_6501
Materials Letters 61(11-12): 2378-2381 (2007)
0167-577X
http://hdl.handle.net/10261/11368
10.1016/j.matlet.2006.09.017
en
http://dx.doi.org/10.1016/j.matlet.2006.09.017
none
22195 bytes
application/pdf
Elsevier