Anisotropic Properties of Carbonaceous Material Produced in Arc Discharge
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Applied Physics A: Materials Science and Processing
ISSN: 0947-8396
, E-ISSN: 1432-0630
|
| Output data |
Year: 2001,
Volume: 72,
Number: 4,
Pages: 481-486
Pages count
: 6
DOI:
10.1007/s003390100564
|
| Authors |
Okotrub A.V.
1
,
Bulusheva L.G.
1
,
Romanenko A.I.
1
,
Chuvilin A.L.
2
,
Rudina N.A.
2
,
Shubin Y.V.
1
,
Yudanov N.F.
1
,
Guselʹnikov A.V.
1
|
| Affiliations |
| 1 |
Institute of Inorganic Chemistry SB RAS, pr. Ak. Lavrenteva 3, Novosibirsk 630090, Russia
|
| 2 |
Boreskov Institute of Catalysis SB RAS, pr. Ak. Lavrenteva 5, Novosibirsk 630090, Russia
|
|
Funding (3)
|
1
|
International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union
|
97-1700
|
|
2
|
Russian Foundation for Basic Research
|
00-03-32463
|
|
3
|
Russian Foundation for Basic Research
|
00-02-17987
|
A helium-pressure influence on the structure and properties of carbonaceous material from the inner part of
a deposit forming in an arc discharge has been studied. At the helium pressure of about 150 Torr and higher, the material was found to have a layered texture, which is perpendicular to the deposit growth axis. Electron microscopy measurements showed that a sample produced in He gas of 800 Torr consists of ∼ 80% carbon nanotubes having predominant orientation in the layers. Electric conductivity along and perpendicular
to the samples’ surface have been measured from 4.2 to 500 K. The samples synthesised at higher helium pressures have significant anisotropy of conductivity, increasing with the carbon nanotubes content rise. X-ray fluorescence spectra represented the angle dependence that is caused by the anisotropy of chemical bonding in the carbon nanotubes. The valence π- and σ-bands for the carbonaceous material were separated.