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Carbon nanotubes and spheres produced by modified ferrocene pyrolysis

Title data

Hou, Haoqing ; Schaper, Andreas ; Weller, Frank ; Greiner, Andreas:
Carbon nanotubes and spheres produced by modified ferrocene pyrolysis.
In: Chemistry of Materials. Vol. 14 (September 2002) Issue 9 . - pp. 3990-3994.
ISSN 1520-5002
DOI: https://doi.org/10.1021/cm021206x

Official URL: Volltext

Abstract in another language

Single-wall carbon nanotubes (SWCNTs) and well-aligned thin multiwall carbon nanotubes (MWCNTs) were successfully synthesized via pyrolysis of a powder mixture of ferrocene and anthracene or 9,10-dibromoanthracene. It is shown that the size of the MWCNTs can be tuned just by changing the ratio of ferrocene/anthracene in the mixture. A lower ratio resulted in low-diameter MWCNTs containing up to five graphene layers only; a high ratio has led to thick MWCNTs with more than 25 layers. Furthermore, there are two extreme cases, the pyrolysis of powders at a low ratio of 1:7 that gives rise to carbon nanospheres and the pyrolysis of pure ferrocene in a H-2 flow that mainly gives rise to metal nanoparticles. When powder mixtures of ferrocene and 9,10-dibromoanthracene are pyrolyzed, both SWCNTs and spherical carbon-coated iron nanoparticles are obtained.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: CHEMICAL-VAPOR-DEPOSITION; FIELD-EMISSION; LARGE-SCALE; RAMAN CHARACTERIZATION; CATALYTIC GROWTH; SINGLE; ARRAYS; SPECTROSCOPY; SUBSTRATE; EMITTERS
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 13:44
Last Modified: 09 Apr 2015 13:44
URI: https://eref.uni-bayreuth.de/id/eprint/9759