A detailed comparison of CVD grown and precursor based DWCNTs

Autor: Hidetsugu Shiozawa, K. Pressl, Mark H. Rümmeli, Rudolf Pfeiffer, Hans Kuzmany, Herwig Peterlik, Hisakazu Muramatsu, P. Knoll, Ferenc Simon, T. Hayashi, Morinobu Endo, Yoong Ahm Kim
Rok vydání: 2008
Předmět:
Zdroj: physica status solidi (b). 245:1943-1946
ISSN: 0370-1972
DOI: 10.1002/pssb.200879560
Popis: Double-wall carbon nanotubes (DWCNTs) grown directly via a CVD method and DWCNTs produced by annealing C 60 and ferrocene filled single-wall carbon nanotubes were studied with X-ray, diffraction (XRD) and Raman spectroscopy. The samples showed the typical XRD patterns of hexagonally bundled tubes. The frequencies and linewidths of the inner tube radial breathing (RBMS) were (within experimental precision) equal in all three samples only the intensities differed. Finally, all samples showed the typical clustering of the inner tube RBMs due to the distribution of inner-outer tube pairs. The only difference was the population of specific inner-outer tube pairs where the CVD and ferrocene based DWCNTs were rather similar and both diffared from the C 60 based DWCNTs.
Databáze: OpenAIRE