Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis
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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2010-11-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.28.8-9.717 |
| _version_ | 1826902962704744448 |
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| author | João Pires Susana Borges Ana P. Carvalho Ana R. Silva |
| author_facet | João Pires Susana Borges Ana P. Carvalho Ana R. Silva |
| author_sort | João Pires |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-07T17:46:32Z |
| format | Article |
| id | doaj.art-01c4b470960e4fae8f554072879febf9 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2025-02-17T07:48:34Z |
| publishDate | 2010-11-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-01c4b470960e4fae8f554072879febf92025-01-03T01:19:30ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382010-11-012810.1260/0263-6174.28.8-9.717Porous Silicas and Respective Carbon Replicates for Adsorption and CatalysisJoão Pires0Susana Borges1Ana P. Carvalho2Ana R. Silva3 Departamento de Química e Bioquímica e CQB, Faculdade de Ciências, Universidade de Lisboa, Edifício C8, Campo Grande, 1749-016 Lisboa, Portugal Departamento de Química e Bioquímica e CQB, Faculdade de Ciências, Universidade de Lisboa, Edifício C8, Campo Grande, 1749-016 Lisboa, Portugal Departamento de Química e Bioquímica e CQB, Faculdade de Ciências, Universidade de Lisboa, Edifício C8, Campo Grande, 1749-016 Lisboa, Portugal Laboratório Associado CICECO, Complexo de Laboratórios Tecnolágicos, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalA 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.https://doi.org/10.1260/0263-6174.28.8-9.717 |
| spellingShingle | João Pires Susana Borges Ana P. Carvalho Ana R. Silva Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis Adsorption Science & Technology |
| title | Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis |
| title_full | Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis |
| title_fullStr | Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis |
| title_full_unstemmed | Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis |
| title_short | Porous Silicas and Respective Carbon Replicates for Adsorption and Catalysis |
| title_sort | porous silicas and respective carbon replicates for adsorption and catalysis |
| url | https://doi.org/10.1260/0263-6174.28.8-9.717 |
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