Ni K-Edge XANES Analyses of Residual Ni Catalyst in Carbon Nanofiber Using Full Multiple Scattering Theory

Ni K-Edge XANES Analyses of Residual Ni Catalyst in Carbon Nanofiber Using Full Multiple Scattering Theory

Residual Ni species after Ni removal treatment of carbon nanofibers have been investigated by use of XAFS analyses. Most of the Ni impurities are in Ni monomer which is located on defects in carbon nanofibers. The XAFS analyses combined with the multiple scattering theory give useful information on...

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Veröffentlicht in:AIP conference proceedings 2007, Vol.882 (1), p.786-788
Hauptverfasser: Ushiro, Mayuko, Asakura, Kiyotaka, Ohminami, Kenryo, Nagamatsu, Shin-ichi, Fujikawa, Takashi
Format: Artikel
Sprache:eng
Schlagworte:
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
CARBON
CARBON FIBERS
CATALYSTS
FINE STRUCTURE
MATERIALS SCIENCE
MOLECULAR ORBITAL METHOD
MONOMERS
MULTIPLE SCATTERING
NANOSTRUCTURES
NICKEL
X-RAY SPECTRA
X-RAY SPECTROSCOPY
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Zusammenfassung:Residual Ni species after Ni removal treatment of carbon nanofibers have been investigated by use of XAFS analyses. Most of the Ni impurities are in Ni monomer which is located on defects in carbon nanofibers. The XAFS analyses combined with the multiple scattering theory give useful information on nano-structures of small amount species. Molecular orbital calculation also support the results from the XAFS analyses.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2644664