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Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis
- Source :
- Adsorption Science & Technology, Vol 28 (2010)
- Publication Year :
- 2010
- Publisher :
- SAGE Publications, 2010.
-
Abstract
- A recent pathway for obtaining regular mesoporous materials (silicas and carbons) in one step was explored in this work using TEOS, P123 and sucrose as a starting base template. The synthesis was catalyzed by H 2 SO 4 . The mesoporous carbon was obtained by carbonization of the previous mixture and the removal of the silica template. In contrast, when the composite mixture was heated in air, a mesoporous silica was obtained. The results showed that the “one-pot” method presented some difficulties in controlling the synthesis variables. All the silica samples presented a more regular pore-size distribution than the respective carbon replicate. The specific surface areas (A BET ) of the prepared materials were in the range 500–600 m 2 /g for the silica samples and within the range 1000–1200 m 2 /g for the carbon samples.
- Subjects :
- Physical and theoretical chemistry
QD450-801
Subjects
Details
- Language :
- English
- ISSN :
- 02636174 and 20484038
- Volume :
- 28
- Database :
- Directory of Open Access Journals
- Journal :
- Adsorption Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.01c4b470960e4fae8f554072879febf9
- Document Type :
- article
- Full Text :
- https://doi.org/10.1260/0263-6174.28.8-9.717