Large-Scale Synthesis of Aligned Carbon Nanotubes
Масштабный синтез ориентированных углеродных нанотрубок
1996-12-06
SCID: 54.1/3uzzzyqy
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aligned carbon nanotubeschemical vapor depositioniron nanoparticlesmesoporous silicascanning electron microscopy
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Abstract (AI)
Large-scale synthesis of aligned carbon nanotubes was achieved by using a method based on chemical vapor deposition catalyzed by iron nanoparticles embedded in mesoporous silica. Scanning electron microscope images show that the nanotubes are approximately perpendicular to the surface of the silica and form an aligned array of isolated tubes with spacings between the tubes of about 100 nanometers. The tubes are up to about 50 micrometers long and well graphitized. The growth direction of the nanotubes may be controlled by the pores from which the nanotubes grow.
Key Findings
1
Large-scale aligned carbon nanotube synthesis was achieved using chemical vapor deposition catalyzed by iron nanoparticles embedded in mesoporous silica.
2
Nanotube growth direction may be controlled by the pores from which the nanotubes emerge.
3
The nanotubes grow approximately perpendicular to the silica surface, forming aligned arrays of isolated tubes with intertube spacings of about 100 nanometers.
4
The synthesized nanotubes reach lengths of up to about 50 micrometers and are well graphitized.
Research Object
large-scale aligned carbon nanotube arrays synthesized on mesoporous silica
Research Subject
the nanotubes’ alignment, growth direction, spacing, length, and graphitization, including control of growth direction by the silica pores
Publication Details
Publication Date
1996-12-06
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