Formation and growth mechanism of dissimilar coiled carbon nanotubes by reduced-pressure catalytic chemical vapor deposition

Article Abstract:

Dissimilar coiled carbon nanotubes prepared by catalytic vapor deposition on finely divided Co nanoparticles supported on silica gel under reduced pressure and at lower gas flow rates are investigated. The result reveals that a helix formation mechanism, which involves a carbon core formation centering on a catalytic particle followed by carbon helices growth controlled by kinetics.

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Zigzag assembly of carbon nanotubes inside Au microtrenches

Article Abstract:

The self-assembly of zigzag patterns consisting of aligned carbon nanotubes inside AU microtrenches by chemical vapor deposition using ferrocene/xylene solution as the precursor is described. Rows of nanotube micropatterns regularly disturbed along the Au trench are potential candidates as integrated arrays of thermal or mechanical detectors and actuators.

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Hydrogen storage in high surface area carbon nanotubes produced by catalytic chemical vapor deposition

Article Abstract:

The preparation of carbon nanotubes, mostly single-and double- walled by a catalytic chemical vapor deposition method using H2-CH4 atmospheres with different CH4 contents is detailed. A correlation exists between the pore volume at low pore diameters and the hydrogen storage capacity.

Nanotechnology

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