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Influence of Hydrogen on Growth of Carbon Nanotubes

Published online by Cambridge University Press:  31 January 2011

Maxim Belov ,
Andrey Knizhnik ,
Irina Lebedeva ,
Alexey Gavrikov ,
Boris Potapkin ,
Timothy Sommerer  and
Chris Eastman
Maxim Belov
Affiliation:
belov@kintech.ru, Kintech Lab Ltd, Moscow, Russian Federation
Andrey Knizhnik
Affiliation:
knizhnik@kintech.ru, Kintech Lab Ltd, Kurchatov Sq 1, Moscow, 123182, Russian Federation, +7 499 196 9992
Irina Lebedeva
Affiliation:
lebedeva@kintech.ru, Kintech Lab Ltd, Moscow, Russian Federation
Alexey Gavrikov
Affiliation:
avg@kintech.ru, Kintech Lab Ltd, Moscow, Russian Federation
Boris Potapkin
Affiliation:
potapkin@kintech.ru, Kintech Lab Ltd, Moscow, Russian Federation
Timothy Sommerer
Affiliation:
Timothy.Sommerer@ge.com, GE Global Research, Niskayuna, New York, United States
Chris Eastman
Affiliation:
eastman@research.ge.com, GE Global Research, Niskayuna, New York, United States
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Abstract

The influence of hydrogen on the growth of carbon nanostructures in thermal chemical vapor deposition is studied using density functional theory calculations. It is shown that hydrogen adatoms effectively bind to edges of graphitic structures on the Ni (111) surface. This is found to result in a significant decrease of the rate of carbon attachment to the growing graphitic structures. However, it is also demonstrated that the edges of graphitic structures which are attached to steps on the Ni surface should not be hydrogenated.

Keywords

simulationcatalyticchemical vapor deposition (CVD) (deposition)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1204: Symposium K – Nanotubes and Related Nanostructures-2009 , 2009 , 1204-K05-16
Copyright
Copyright © Materials Research Society 2010

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