Preparation and characterization of SC nanofibrils

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:230177

Niu, C; Moy, D ^[1]

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1. Hyperion Catalysis International, Inc., Cambridge, MA (United States)

SiC nanofibrils have been prepared by direct reaction of carbon nanotubes with vapor phase SiO. The carbon nanotubes which are characterized by having substantially uniform diameters between 70-120 {Angstrom}, multiple graphitic carbon layers arranged con- centrically around the tube axis, and a hollow core, were prepared by catalytic decomposition of hydrocarbons. Electron microscope studies of SiC nanofibrils as prepared revealed that the reaction was a pseudo-topotactic transformation since the product inherited macroscopic features of the starting carbon nanotubes. The diameters of the SiC are substantially uniform, and average about 150 {Angstrom}. The crystallographic structure of the product was characterized with X-ray and electron diffraction.

• OSTI ID: 230177
• Report Number(s): CONF-950840--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
CRYSTAL GROWTH
CRYSTAL STRUCTURE
ELECTRON DIFFRACTION
FILMS
LAYERS
SILICON CARBIDES
X-RAY DIFFRACTION