Thermodynamics of homogeneous and heterogeneous nucleation of clusters of catalysts for growing carbon nanotubes

Thermodynamics of homogeneous and heterogeneous nucleation of clusters of catalysts for growing... A thermodynamical model of the homogeneous and heterogeneous formation of clusters of catalysts is developed. Parameters of cluster formation during ferrocene pyrolysis were studied experimentally and theoretically. It was shown that the surface tension and size of clusters strongly depend on the temperature. The coefficient of surface tension and characteristic sizes of the clusters were calculated. The obtained dependences and parameters allow us to reconstruct the size distribution function of the clusters by setting the temperatures in the working zone and in the zone of ferrocene sublimation. This makes it possible to predict the cluster size, depending on the synthesis parameters, especially, the temperature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Microelectronics Springer Journals

Thermodynamics of homogeneous and heterogeneous nucleation of clusters of catalysts for growing carbon nanotubes

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Engineering; Electrical Engineering
ISSN
1063-7397
eISSN
1608-3415
D.O.I.
10.1134/S1063739712080069
Publisher site
See Article on Publisher Site

Abstract

A thermodynamical model of the homogeneous and heterogeneous formation of clusters of catalysts is developed. Parameters of cluster formation during ferrocene pyrolysis were studied experimentally and theoretically. It was shown that the surface tension and size of clusters strongly depend on the temperature. The coefficient of surface tension and characteristic sizes of the clusters were calculated. The obtained dependences and parameters allow us to reconstruct the size distribution function of the clusters by setting the temperatures in the working zone and in the zone of ferrocene sublimation. This makes it possible to predict the cluster size, depending on the synthesis parameters, especially, the temperature.

Journal

Russian MicroelectronicsSpringer Journals

Published: Nov 17, 2012

References

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