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Phys. Rev. B 80, 075427 (2009) [5 pages]

Hydrogen-induced disintegration of fullerenes and nanotubes: An ab initio study

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Savas Berber1,2 and David Tománek1
1Physics and Astronomy Department, Michigan State University, East Lansing, Michigan 48824-2320, USA
2Physics Department, Gebze Institute of Technology, Gebze, Kocaeli 41400, Turkey

Received 16 April 2009; published 24 August 2009

We use ab initio density-functional calculations to study hydrogen-induced disintegration of single-wall and multiwall carbon fullerenes and nanotubes. Our results indicate that hydrogen atoms preferentially chemisorb along lines in sp2 bonded carbon nanostructures, locally weakening the carbon bonds and releasing stress. For particular structural arrangements, hydrogen helps to relieve the accumulated stress by inducing stepwise local cleavage leading to disintegration of the outermost wall.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.80.075427
DOI:
10.1103/PhysRevB.80.075427
PACS:
61.48.De, 64.70.Nd, 81.05.Tp, 82.65.+r