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Aggregation of fullerene (C60) nanoparticle:A molecular-dynamic study |
He Su-Zhen (何素贞)a, Merlitz Holgerb c, Wu Chen-Xu (吴晨旭)b |
a Department of Electronic Engineering, Putian University, Putian 351100, China; b Department of Physics and ITPA, Xiamen University, Xiamen 361005, China; c Leibniz-Institut für Polymerforschung Dresden 01069 Dresden, Germany |
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Abstract We present the results of molecular dynamics simulations of net positively charged fullerene nanoparticles in salt-free and salt-added solution. The aggregation of fullerene (C60)-like nanoparticle and counterion are studied in detail as a function of temperatures and a finite salt concentration. Our simulations show that the strong conformation changes as temperature changes. The net positively-charged nanoparticles do not repel each other but are condensed under proper temperatures. If salts are added, the aggregated nanoparticles will be disaggregated due to the Debye screening effect.
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Received: 07 September 2013
Revised: 03 December 2013
Accepted manuscript online:
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PACS:
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82.45.Gj
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(Electrolytes)
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82.37.Np
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(Single molecule reaction kinetics, dissociation, etc.)
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Fund: Project supported by the Natural Science Foundation of Fujian Province of China (Grant No. 2012J05008). |
Corresponding Authors:
Wu Chen-Xu
E-mail: cxwu@xmu.edu.cn
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About author: 82.45.Gj; 82.37.Np |
Cite this article:
He Su-Zhen (何素贞), Merlitz Holger, Wu Chen-Xu (吴晨旭) Aggregation of fullerene (C60) nanoparticle:A molecular-dynamic study 2014 Chin. Phys. B 23 048201
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