Titelangaben
Hou, Haoqing ; Schaper, Andreas ; Weller, Frank ; Greiner, Andreas:
Carbon nanotubes and spheres produced by modified ferrocene pyrolysis.
In: Chemistry of Materials.
Bd. 14
(2002)
Heft 9
.
- S. 3990-3994.
ISSN 1520-5002
DOI: https://doi.org/10.1021/cm021206x
Abstract
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.
Weitere Angaben
Publikationsform: | Artikel in einer Zeitschrift |
---|---|
Begutachteter Beitrag: | Ja |
Keywords: | CHEMICAL-VAPOR-DEPOSITION; FIELD-EMISSION; LARGE-SCALE; RAMAN CHARACTERIZATION; CATALYTIC GROWTH; SINGLE; ARRAYS; SPECTROSCOPY; SUBSTRATE; EMITTERS |
Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II |
Titel an der UBT entstanden: | Nein |
Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
Eingestellt am: | 09 Apr 2015 13:44 |
Letzte Änderung: | 07 Sep 2023 13:20 |
URI: | https://eref.uni-bayreuth.de/id/eprint/9759 |