Production of carbonaceous nanostructures from a silver-carbon ambient spark

Title
Production of carbonaceous nanostructures from a silver-carbon ambient spark
Author(s)
변정훈김장우[김장우]
Keywords
ARC-DISCHARGE; NANOPARTICLES; METAL; AG; NANOCAPSULES; ENCAPSULATION; NANOCRYSTALS; ONIONS; NI
Issue Date
201004
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.96, no.15
Abstract
Using silver-carbon ambient sparks, hollow carbon nanospheres or multiwall carbon nanotubes were produced separately from carbon encapsulated silver nanoparticles (-1,400 K s(-1)) during relatively slow (-800 K s(-1)) or fast (-2,900 K s(-1)) cooling process. Different cooling processes (i.e., different exposures within high temperature) caused the formation of different carbon precipitates in the process of silver mediated graphitization: for -2,900 K s(-1) and <-1,400 K s(-1), respectively, obtained tubelike and sphere (encapsulated and hollow)-like carbonaceous nanostructures.
URI
http://hdl.handle.net/YU.REPOSITORY/22646http://dx.doi.org/10.1063/1.3396188
ISSN
0003-6951
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공과대학 > 기계공학부 > Articles
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