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Carbon ARC Generation of C60

Published online by Cambridge University Press:  28 February 2011

R. E. Haufler ,
Y. Chai ,
L. P. F. Chibante ,
J. Conceicao ,
Changming Jin ,
Lai-Sheng Wang ,
Shigeo Maruyama  and
R. E. Smalley
R. E. Haufler
Affiliation:
Robert A. Welch Foundation Predoctoral Fellow.
Y. Chai
Affiliation:
Robert A. Welch Foundation Predoctoral Fellow.
L. P. F. Chibante
Affiliation:
Robert A. Welch Foundation Predoctoral Fellow.
J. Conceicao
Affiliation:
Robert A. Welch Foundation Predoctoral Fellow.
Changming Jin
Affiliation:
Robert A. Welch Foundation Predoctoral Fellow.
Lai-Sheng Wang
Affiliation:
Rice Quantum Institute and Departments of Chemistry and PhysicsRice University Houston, Texas 77251
Shigeo Maruyama
Affiliation:
RQI Visiting Fellow, Department of Mechanical Engineering, University of Tokyo, Bunko-ku, Tokyo 113, Japan.
R. E. Smalley
Affiliation:
Rice Quantum Institute and Departments of Chemistry and PhysicsRice University Houston, Texas 77251
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Abstract

Generation of C60 at a rate of more than 10 grams per day has been accomplished by operation of a carbon arc in an atmosphere of helium. Optimum yield of 15% was found to occur near 100–200 torr, but yields greater than 3% were found throughout the range between 50 and 760 torr. A model is proposed to explain the observed behavior based on competition between annealing of graphitic sheets to curve so that they minimize dangling bonds, and further rapid growth of these sheets in the gas phase to form giant fullerenes. In agreement with predictions of this model, laser vaporization of graphite targets was found to produce macroscopic quantities of C60 only when performed in an oven above 1000 C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 206: Symposium G – Clusters and Cluster-Assembled Materials , 1990 , 627
Copyright
Copyright © Materials Research Society 1991

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References

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