TY - JOUR
T1 - Spectroscopic characterization of N-doped single-walled carbon nanotube strands
T2 - An X-ray photoelectron spectroscopy and raman study
AU - Elías, A. L.
AU - Ayala, P.
AU - Zamudio, A.
AU - Grobosch, M.
AU - Cruz-Silva, E.
AU - Romo-Herrera, J. M.
AU - Campos-Delgado, J.
AU - Terrones, H.
AU - Pichler, T.
AU - Terrones, M.
PY - 2010/6
Y1 - 2010/6
N2 - 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.
AB - 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.
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U2 - 10.1166/jnn.2010.2009
DO - 10.1166/jnn.2010.2009
M3 - Article
C2 - 20355398
AN - SCOPUS:77954370126
SN - 1533-4880
VL - 10
SP - 3959
EP - 3964
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
IS - 6
ER -