Growth of carbon micro-trees
Article Abstract:
It is possible to tailor carbon surfaces while they are growing just by controlling the rate of deposition from the vapour phase. Research in this area has demonstrated the growth of micron-sized tree-like carbon structures produced by chemical vapour deposition of methane without the use of any catalysts. High-resolution transmission electron microscopy images of the outer zones indicate the structure of disordered graphite. The solid-like centre shows more disorder, suggesting that the cores experience lower growth temperatures.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
Carbon nanotubes as removable templates for metal oxide nanocomposites and nanostructures
Article Abstract:
The nanotube-oxide composites are synthesized by regulated cooling of a mixture of vanadium pentoxide powder and incompletely oxidized nanotubes at a temperature above the melting point of the oxide. Using nanotubes as removable templates, thin-film ceramic nanostructures are fabricated. The internal cavities of the nanotubes undergo capillarity-induced oxide filling and thin oxide layers are formed between the concentric shells of the tubes.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Capillarity-induced filling of carbon nanotubes
Article Abstract:
Liquid lead was drawn into graphitic carbon nanotubes using experimental capillary action. Transmission electron microscopy confirmed that annealing the nanotubes caused them to be filled with lead spontaneously. The opening of the nanotube tips probably requires their metal, oxygen and carbon components to interact chemically. This novel method for nano-fabrication may lead to nanometer-sized fibers or wires with many possible applications.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Bending and buckling of carbon nanotubes under large strain. The smallest carbon nanotube
- Abstracts: Assembly of submicrometre ferromagnets in gallium arsenide semiconductors. Teaching magnets new tricks
- Abstracts: Computation and the single neuron. Quantum mechanics in the brain. Imagery neurons in the human brain
- Abstracts: The physiology of the planet. Chill taken out of the tropics. What drives climate?
- Abstracts: Early evolution of the venom system in lizards and snakes. Rapid evolution to terrestrial life in Jamaican crabs