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Carbon Coated Nanoparticle Composites Synthesized in an RF Plasma Torch

Published online by Cambridge University Press:  10 February 2011

John Henry J. Scott ,
Sara A. Majetich ,
Zafer Turgut ,
Michael E. Mchenry  and
Maher Boulos
John Henry J. Scott
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
Sara A. Majetich*
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
Zafer Turgut
Affiliation:
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213
Michael E. Mchenry
Affiliation:
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213
Maher Boulos
Affiliation:
Plasma Technology Research Center (CRTP), University of Sherbrooke, Sherbrooke, Quebec, Canada
*
* Author to whom correspondence should be addressed, email: sm70@andrew.cmu.edu.
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Abstract

FeCo alloy nanoparticles are synthesized in an RF plasma torch reactor and characterized using X-ray powder diffraction (XRD) and transmission electron microscopy (XRD). Bare, uncoated particles exhibit a chain-like agglomeration morphology marked by large ring- and bridge-like structures surrounding open voids. Acetylene was used to generate large numbers of carbon-coated nanoparticles similar to those produced in carbon arc reactors. Conventional TEM of this powder revealed numerous particles below 50 nm in diameter embedded in a carbonaceous matrix. These results establish RF plasma torch processing as a well-characterized, scalable alternative to carbon arc synthesis of encapsulated nanoparticles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 457: Symposium V – Nanophase and Nanocomposite Materials II , 1996 , 219
Copyright
Copyright © Materials Research Society 1997

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References

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