Morphology and Texture of Silica Prepared by Sol-Gel Synthesis on the Surface of Fibrous Carbon Materials
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Output data |
Year: 2002,
Volume: 43,
Number: 3,
Pages: 427-432
Pages count
: 6
DOI:
10.1023/A:1016074321915
|
| Authors |
Ermakova M.A.
1
,
Ermakov D.Y.
1
,
Kuvshinov G.G.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent’eva 5, Novosibirsk, 630090 Russia
|
|
Funding (1)
|
1
|
Russian Foundation for Basic Research
|
99-03-32274
|
Silica materials are synthesized by the sol–gel method including the deposition of tetraethoxysilane on various micro- and nanocarbon fibers. The use of nanofibrous carbon as a template makes it possible to prepare thermally stable mesoporous SiO2 samples with unusually high surface areas (up to 1255 m2/g) and high porosity (up to 5.6 cm3/g). These silica materials and aerogels prepared by supercritical drying have comparable pore volumes. It is found by high-resolution electron microscopy that a thin-wall matrix permeated by channels is a prevailing structure of silica materials. When some catalytic fibrous carbons are used as templates, silica nanotubes can be prepared.