Carbon beads with protruding cones
Article Abstract:
Attempts at uncovering the cause for the formation of vapor-grown carbon fibers have resulted in the production of a new carbon structure. The structure is a unique combination of beads, whose surface seems rough, and protruding smooth cones. Using transmission electron microscopy, it was revealed that the beads' contents are crumpled sheets of graphene while the cones are composed of straight sheets of graphene aligned parallel to the cone axis. Further use of sophisticated experimental techniques showed that the carbon that comprises the beads and the cones is microscopically similar while the cones were found to have higher electrical conductivity.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Carbon onions in meteorites
Article Abstract:
Carbon onions formed by irradiation-stimulated graphitization are thought to be related to fullerenes because they are formed by a similar synthesis. P. Smith and P.R. Buseck discovered similar graphitic particles in the Allende meteorite that may also be related to fullerenes and carbon onions. One theory concerning how they were formed in outer space posits shock synthesis. This theory has been tested under laboratory conditions which produced spherical graphitic layers. However, another possibility is that the spheres were formed while under the high-resolution microscope.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
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Japan backs carbon project in shift to applied research
Article Abstract:
The Ministry of International Trade and Industry (MITI) in Japan is supporting a major national research and development project aimed at producing highly functional carbon and related materials. The ministry has increasingly concentrated its attention on basic research, but the focus has moved to creating new technologies and industries.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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