Spectroscopic Characterization of N-Doped Single-Walled Carbon Nanotube Strands: An X-ray Photoelectron Spectroscopy and Raman Study

Autor(en)

Ana Laura Elias, Paola Ayala, Adalberto Zamudio, Mandy Grobosch, Eduardo Cruz-Silva, Jose Manuel Romo-Herrera, Jessica Campos-Delgado, Humberto Terrones, Thomas Pichler, Mauricio Terrones

Abstrakt

We have studied in detail the carbon and nitrogen bonding environments in nitrogen-doped single-walled carbon nanotubes (SWCNTs). The samples consisting of long strands of N-doped SWCNTs were synthesized using an aerosol assisted chemical vapor deposition method involving benzylamine-ethanol-ferrocene solutions. The studied samples were produced using different benzylamine concentrations in the solutions, and exhibited a maximum concentration of ca. 0.3%at of N, determined by X-ray photoelectron spectroscopy (XPS). In general, we observed that the ratio between substitutional nitrogen and the pyridine-like bonded nitrogen varied upon the precursor composition. Moreover, we have observed that the sp(2)-like substitutional configuration of the C-N bond does not exceed the 50% of the total N atomic incorporation. In addition, we have characterized all these samples using Raman spectroscopy and electron microscopy.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Instituto Potosino de Investigación Científica y Tecnológica A.C., Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Universidad de Vigo

Journal

Journal of Nanoscience and Nanotechnology

Band

10

Seiten

3959-3964

Anzahl der Seiten

6

ISSN

1533-4880

DOI

https://doi.org/10.1166/jnn.2010.2009

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c588e360-0e32-4519-8abc-8c0c8bab010a