Synthesis, structure, and superconducting properties of NbC nanorods and nanoparticles

Akihiko Fukunaga, Shaoyan Chu, Michael E. McHenry, Michihiko Nagumo

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

NbC nanorods and nanoparticles have been synthesized using a vapor-solid reaction path starting with carbon nanotube precursors. Their structures are studied using XRD, TEM, and HRSEM. Their superconducting properties of nanoparticles were also characterized using a SQUID magnetometer. For reactions at lower temperatures, NbC nanorods (10 - 20 nm) which replicate the precursor carbon nanotubes are observed. For reactions at higher temperature, coarsened NbC nanoparticles (100 - 500 nm) are observed which have spherical or faceted morphologies. A morphological Rayleigh instability can be applied as initiating the transition from NbC nanorod to nanoparticle morphologies. NbC nanoparticles with a little larger lattice parameter show a higher Tc than stoichiometric bulk NbC.

Original languageEnglish
Pages (from-to)118-122
Number of pages5
JournalMaterials Transactions, JIM
Volume40
Issue number2
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Fingerprint

Nanorods
nanorods
Nanoparticles
nanoparticles
synthesis
Carbon Nanotubes
Carbon nanotubes
carbon nanotubes
SQUIDs
Magnetometers
magnetometers
Lattice constants
lattice parameters
Vapors
vapors
Transmission electron microscopy
Temperature
transmission electron microscopy

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Synthesis, structure, and superconducting properties of NbC nanorods and nanoparticles. / Fukunaga, Akihiko; Chu, Shaoyan; McHenry, Michael E.; Nagumo, Michihiko.

In: Materials Transactions, JIM, Vol. 40, No. 2, 01.01.1999, p. 118-122.

Research output: Contribution to journalArticle

Fukunaga, Akihiko ; Chu, Shaoyan ; McHenry, Michael E. ; Nagumo, Michihiko. / Synthesis, structure, and superconducting properties of NbC nanorods and nanoparticles. In: Materials Transactions, JIM. 1999 ; Vol. 40, No. 2. pp. 118-122.
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