Large-scale synthesis and characterization of helically coiled carbon nanotubes by use of Fe(CO)₅ as floating catalyst precursor

Title data

Hou, Haoqing ; Zeng, Jun ; Weller, Frank ; Greiner, Andreas:
Large-scale synthesis and characterization of helically coiled carbon nanotubes by use of Fe(CO)₅ as floating catalyst precursor.
In: Chemistry of Materials. Vol. 15 (2003) Issue 16 . - pp. 3170-3175.
ISSN 1520-5002
DOI: https://doi.org/10.1021/cm021290g

Official URL:

Abstract in another language

Helically shaped multiwalled carbon nanotubes (HCNTs) (diameter 30-80 nm) were obtained as main products in large quantities by co-pyrolysis of Fe(CO)(5) as floating catalyst precursor and pyridine or toluene as carbon source at temperatures above 1000 degreesC under flow of hydrogen. In contrast, pyrolysis at 700-800 degreesC yielded only carbon-coated Fe nanoparticles. The HCNTs were characterized by electron microscopy, Raman spectroscopy, and wide-angle X-ray diffraction. The growth mechanism of the HCNTs was discussed on the basis of previously reported models.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	CHEMICAL-VAPOR-DEPOSITION; SINGLE-WALLED NANOTUBES; GRAPHITIC CARBON; RAMAN-SPECTRA; GROWTH-MECHANISM; ELECTRONIC-STRUCTURE; GLASSY-CARBON; CAGE FORMS; PYROLYSIS; HYDROCARBON
Institutions of the University:	Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT:	No
DDC Subjects:	500 Science > 540 Chemistry
Date Deposited:	09 Apr 2015 13:38
Last Modified:	07 Sep 2023 13:24
URI:	https://eref.uni-bayreuth.de/id/eprint/9742