Mesoporous Alumina in an Al2O3/Al Cermet Prepared from Powdered Aluminum
Full article
| Journal |
Journal of Materials Science and Engineering (A & B)
ISSN: 2161-6213
, E-ISSN: 2161-6221
|
| Output data |
Year: 2011,
Volume: 5,
Number: 3,
Pages: 281-292
Pages count
: 12
|
| Tags |
Al2O3/Al cermet, mesoporous alumina, structure, texture. |
| Authors |
Tikhov Serguei
1
,
Khabibulin Djalil
1
,
Lapina Olga
1
,
Salanov Aleksey
1
,
Bespalko Yulia
1
,
Sadykov Vladislav
1,2
,
Ratko Anatoly
3
,
Kouznetsova Tatyana
3
,
Romanenkov Vladimir
3
,
Eremenko Svetlana
3
|
| Affiliations |
| 1 |
Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis SD RAS, 630090 Lavrentieva St. 5, Russia
|
| 2 |
Department of Natural Sciences, Novosibirsk State University, Novosibirsk, 630090, Russia
|
| 3 |
Institute of General and Inorganic Chemistry NAS of Belarus, Laboratory of Adsorption, Minsk, 220072 Belarus
|
|
Funding (2)
|
1
|
Russian Foundation for Basic Research
|
06-03-81012
|
|
2
|
Belarusian Republican Foundation for Fundamental Research
|
X06P-133
|
The synthesis of the mesoporous alumina by hydrothermal oxidation of powdered aluminum with an aqueous solution of polyethylene glycole (PEG) followed by calcination was studied. The increase of the PEG concentration from 0 to 3% was found to result in an increase of the alumina BET surface area from 254 to 406 m2/g, with the pore volume growing from 0.46 to 0.82 cm3/g and pore diameter increasing from 4.5 to 6.2 nm. The methods for regulating the mesopore structure in the Al2O3/Al cermet monoliths with the crushing strength 8.6-12.3 MPa the enhanced fraction of macropores (up to ~88 vol.%) were developed. The alumina structure in the cermets was characterized by 27Al MAS NMR. It was shown that aluminum oxide became more distorted in the cermets prepared with PEG and its distortion increased with the PEG concentration.