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Synthesis of High Surface Area Silica Gels Using Porous Carbon Matrices Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Journal of Porous Materials
ISSN: 1380-2224 , E-ISSN: 1573-4854
Output data Year: 2000, Volume: 7, Number: 4, Pages: 435-441 Pages count : 7 DOI: 10.1023/A:1009610424103
Authors Ermakova M.A. 1 , Ermakov D.Yu. 1 , Kuvshinov G.G. 1 , Fenelonov V.B. 1 , Salanov A.N. 1
Affiliations
1 Boreskov Institute of Catalysis, Prosp. Ak. Lavrentieva 5, Novosibirsk 630090, Russia

Funding (1)

1 Russian Foundation for Basic Research 98-03-32329

Abstract: Porous silica was prepared using the sol-gel synthesis with porous carbon matrices as a pore-forming support. Tetraethoxysilane (TEOS) was hydrolyzed in an acid medium in the presence of a substoichiometric amount of water. Various carbon materials were used, among them Sibunit and catalytic filamentous carbon. Carbon matrices were impregnated with hydrolyzed TEOS and dried, then carbon was removed by burning out in air at 873 K. The obtained porous silica samples were studied by adsorption and electron microscopic methods. The specific surface area as high as 1267 m2g and pore volume as high as 5.7 cm3/g were determined for some silica samples. Thus deposited SiO2 was found to cover the carbon surface copying its surface. With CFC used as carbon matrix, silica nanotubes were obtained. Thermostability of such silica is significantly greater as compared to silica gels reported earlier.
Cite: Ermakova M.A. , Ermakov D.Y. , Kuvshinov G.G. , Fenelonov V.B. , Salanov A.N.
Synthesis of High Surface Area Silica Gels Using Porous Carbon Matrices
Journal of Porous Materials. 2000. V.7. N4. P.435-441. DOI: 10.1023/A:1009610424103 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Oct 29, 1998
Accepted: Jun 24, 1999
Published print: Jun 1, 2000
Identifiers:
publication_identifier.wos_identifier_type WOS:000085087900002
publication_identifier.scopus_identifier_type 2-s2.0-0034209839
publication_identifier.rinz_identifier_type 13359811
publication_identifier.accession_number_identifier_type 2000:225983
publication_identifier.chemical_accession_number_identifier_type 133:6498
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