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Multiphoton Ionization Mass Spectroscopy of Fullerenes in Methane Diffusion Flames

Published online by Cambridge University Press:  15 February 2011

H. Hepp ,
K. Siegmann  and
K. Sattler
H. Hepp
Affiliation:
Laboratory for Solid State Physics, Swiss Federal Institute of Technology (ETH), CH-8093 Zuerich, Switzerland
K. Siegmann
Affiliation:
Laboratory for Solid State Physics, Swiss Federal Institute of Technology (ETH), CH-8093 Zuerich, Switzerland
K. Sattler
Affiliation:
Department of Physics and Astronomy, University of Hawaii, Honolulu, HI
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Abstract

Multiphoton ionization time-of-flight mass spectrosocopy is used as an on-line technique to investigate polycyclic aromatic hydrocarbons (PAH) and fullerenes in atmospheric pressure flames. We have recorded height profiles of neutral PAH and fullerenes in methane/argon diffusion flames. Fullerenes ranging from C32 to at least C150 are found in a region where PAH concentration starts to decrease. Uniformity of the profiles indicates that the fullerenes do not grow from smaller to larger ones. The influence of the amount of argon additive is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 359: Symposium G – Science and Technology of Fullerene Materials , 1994 , 517
Copyright
Copyright © Materials Research Society 1995

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References

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