Document Detail


Dynamic catalyst restructuring during carbon nanotube growth.
MedLine Citation:
PMID:  21062086     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We study the restructuring of solid nickel catalyst nanoparticles during carbon nanotube growth by environmental transmission electron microscopy and multiscale modeling. Our molecular dynamics/continuum transport calculations of surface-diffusion-mediated restructuring are in quantitative agreement with the experimentally observed catalyst shape evolutions. The restructuring time scale is determined by reduced Ni diffusion through the stepped Ni-C interface region where the catalyst surface strongly anchors to the growing nanotube.
Authors:
Michael Moseler; Felipe Cervantes-Sodi; Stephan Hofmann; Gábor Csányi; Andrea C Ferrari
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-11-09
Journal Detail:
Title:  ACS nano     Volume:  4     ISSN:  1936-086X     ISO Abbreviation:  ACS Nano     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-28     Completed Date:  2011-03-23     Revised Date:  2011-03-25    
Medline Journal Info:
Nlm Unique ID:  101313589     Medline TA:  ACS Nano     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7587-95     Citation Subset:  -    
Affiliation:
Fraunhofer Institute for Mechanics of Material IWM, Freiburg, Germany. michael.moseler@iwm.fraunhofer.de
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Comments/Corrections
Comment In:
ACS Nano. 2011 Feb 22;5(2):685; author reply 686-7   [PMID:  21338171 ]

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