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Title: Migration of a carbon adatom on a charged single-walled carbon nanotube

Abstract

Here we find that negative charges on an armchair single-walled carbon nanotube (SWCNT) can significantly enhance the migration of a carbon adatom on the external surfaces of SWCNTs, along the direction of the tube axis. Nanotube charging results in stronger binding of adatoms to SWCNTs and consequent longer lifetimes of adatoms before desorption, which in turn increases their migration distance several orders of magnitude. These results support the hypothesis of diffusion enhanced SWCNT growth in the volume of arc plasma. This process could enhance effective carbon flux to the metal catalyst.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [2];  [3]
  1. State Univ. of New York (SUNY), Stony Brook, NY (United States). Inst. for Advanced Computational Science and Dept. of Material Science and Engineering
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  3. Princeton Univ., NJ (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1353404
Alternate Identifier(s):
OSTI ID: 1396885
Grant/Contract Number:  
AC02-09CH11466
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 116; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; chemical-vapor-deposition; ion batteries; solar-cells; growth; adsorption; nucleation; kinetics; anode; gas

Citation Formats

Han, Longtao, Krstic, Predrag, Kaganovich, Igor, and Car, Roberto. Migration of a carbon adatom on a charged single-walled carbon nanotube. United States: N. p., 2017. Web. doi:10.1016/j.carbon.2017.02.003.
Han, Longtao, Krstic, Predrag, Kaganovich, Igor, & Car, Roberto. Migration of a carbon adatom on a charged single-walled carbon nanotube. United States. https://doi.org/10.1016/j.carbon.2017.02.003
Han, Longtao, Krstic, Predrag, Kaganovich, Igor, and Car, Roberto. 2017. "Migration of a carbon adatom on a charged single-walled carbon nanotube". United States. https://doi.org/10.1016/j.carbon.2017.02.003. https://www.osti.gov/servlets/purl/1353404.
@article{osti_1353404,
title = {Migration of a carbon adatom on a charged single-walled carbon nanotube},
author = {Han, Longtao and Krstic, Predrag and Kaganovich, Igor and Car, Roberto},
abstractNote = {Here we find that negative charges on an armchair single-walled carbon nanotube (SWCNT) can significantly enhance the migration of a carbon adatom on the external surfaces of SWCNTs, along the direction of the tube axis. Nanotube charging results in stronger binding of adatoms to SWCNTs and consequent longer lifetimes of adatoms before desorption, which in turn increases their migration distance several orders of magnitude. These results support the hypothesis of diffusion enhanced SWCNT growth in the volume of arc plasma. This process could enhance effective carbon flux to the metal catalyst.},
doi = {10.1016/j.carbon.2017.02.003},
url = {https://www.osti.gov/biblio/1353404}, journal = {Carbon},
issn = {0008-6223},
number = C,
volume = 116,
place = {United States},
year = {Thu Feb 02 00:00:00 EST 2017},
month = {Thu Feb 02 00:00:00 EST 2017}
}

Journal Article:

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Cited by: 9 works
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