Raman and HRTEM Monitoring of Thermal Modification of HipCO Nanotubes
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
Molecular Nanostructures : XVII International Winterschool Euroconference on Electronic Properties of Novel Materials
08-15 Mar 2003
,
Kirchberg
|
| Source |
Molecular nanostructures: XVII International Winterschool Euroconference on Electronic Properties of Novel Materials
Compilation,
2003.
ISBN 0-7354-0154-3.
|
| Journal |
AIP Conference Proceedings
ISSN: 0094-243X
, E-ISSN: 1551-7616
|
| Output data |
Year: 2003,
Volume: 685,
Pages: 215-218
Pages count
: 4
DOI:
10.1063/1.1628021
|
| Authors |
Obraztsova E.D.
1
,
Bokova S.N.
1
,
Kuznetsov V.L.
2
,
Usoltseva A.N.
2
,
Zaikovskii V.I.
2
,
Dettlaff‐Weglikowska U.
3
,
Roth S.
3
,
Kuzmany H.
4
|
| Affiliations |
| 1 |
Natural Sciences Center of General Physics Institute, RAS, 38 Vavilov street, 119991, Moscow, Russia
|
| 2 |
Boreskov Institute of Catalysis, RAS, 5 Lavrentieva street, 630090, Novosibirsk, Russia
|
| 3 |
Max-Plank-Inst. fur Festkorperforscung, Heisenbergstr. 1 D-70569, Stuttgart, Germany
|
| 4 |
Universitat Wien, Inst. fur Materialphysik, Strudlhofgasse 4, A-1090, Wien, Austria
|
|
A diameter‐dependent oxidative etching of the smallest HipCO nanotubes (diameters 8–10 Å) has been observed by in situ Raman measurements both in a laser beam with a variable power density and in an optical oven with a variable temperature. The effect manifested itself as an irreversible disappearance of the Raman breathing modes with frequencies > 220 cm−1. The small tube degradation (up to their complete disappearance) took place at temperatures 150–400°C. Statistical averaging of HRTEM images of HipCO nanotubes, taken after successive temperature steps, has confirmed an obvious shift of the tube diameter distribution maximum toward higher values.