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

Journal Article · · Carbon
 [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

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.

Research Organization:
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 Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1353404
Alternate ID(s):
OSTI ID: 1396885
Journal Information:
Carbon, Vol. 116, Issue C; ISSN 0008-6223
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (2)

Nanofabrication by thermal plasma jets: From nanoparticles to low-dimensional nanomaterials journal February 2019
Non-equilibrium synergistic effects in atmospheric pressure plasmas journal March 2018