Изделие из пористого углеродного материала и способ получения изделия
Patents
| Language: |
Русский |
| Type: |
Patent request |
| Number |
WO 9502451 A3 |
| Request number: |
PCT/RU94/00145 |
| Request date: |
Jul 8, 1994 |
| patent.field.start_date: |
|
| Registration date: |
|
| patent.field.request_publication_date: |
Jan 26, 1995 |
| Authors |
Бакланова О.Н.
,
Дуплякин В.К.
,
Шим В.В.
,
Давыдова В.Ю.
,
Плаксин Г.В.
,
Лихолобов В.А.
,
Чернышов А.К.
,
Алфеев В.С.
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
|
The proposed article, consisting of a porous carbonaceous material (fig. 1), is produced by extruding a soft carbonaceous paste through a die, the paste consisting of 30-60 % dispersed carbon, a solvent and 2-10 % of a carbon-containing binder. Extrusion takes place at a pressure of 20-60 kg/cm2 and the article thus formed is then heat treated, firstly, in a non-oxidizing environment in the presence of hydrocarbons, the ratio of carbon and hydrogen being 0.25-1.0, until the mass of the article has increased by 20-200 %, and subsequently in an active environment. According to the invention, the article is produced from three-dimensionally homogeneous carbon with a mesoporous structure and maximum pore-size distributions in the 100-2,000 Å and 20-100 Å ranges. For each article, the ratio of the outer surface geometry to the volume of material is 4-100 m-1, the ratio of the thickness of the dividing walls between the channels and the outer walls is 1:2 - 1:10, and the unit surface area is 100-2,000 m2/g.