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Science 18 April 2003:
Vol. 300. no. 5618, pp. 472 - 474
DOI: 10.1126/science.1082264
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Reports

Tubular Graphite Cones

Guangyu Zhang,1,2 Xin Jiang,1*{dagger} Enge Wang2*

We report the synthesis of tubular graphite cones using a chemical vapor deposition method. The cones have nanometer-sized tips, micrometer-sized roots, and hollow interiors with a diameter ranging from about 2 to several tens of nanometers. The cones are composed of cylindrical graphite sheets; a continuous shortening of the graphite layers from the interior to the exterior makes them cone-shaped. All of the tubular graphite cones have a faceted morphology. The constituent graphite sheets have identical chiralities of a zigzag type across the entire diameter, imparting structural control to tubular-based carbon structures. The tubular graphite cones have potential for use as tips for scanning probe microscopy, but with greater rigidity and easier mounting than currently used carbon nanotubes.

1 Fraunhofer Institute for Surface Engineering and Thin Films, Bienroder Weg 54 E, 38108 Braunschweig, Germany.
2 State Key Laboratory for Surface Physics and International Center for Quantum Structures, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.


{dagger} Present address: Institute for Materials Engineering, University of Siegen, Paul-Bonartz Strasse 9, 57068 Siegen, Germany.

* To whom correspondence should be addressed. E-mail: jiang{at}ist.fhg.de; egwang{at}aphy.iphy.ac.cn

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
MICRO- AND NANOSCALE GRAPHITE CONES AND TUBES FROM HACKMAN VALLEY, KOLA PENINSULA, RUSSIA.
J. A. Jaszczak, S. Dimovski, S. A. Hackney, G. W. Robinson, P. Bosio, and Y. Gogotsi (2007)
Can Mineral 45, 379-389
   Abstract »    Full Text »    PDF »
Comment on "Tubular Graphite Cones".
J. Luo, J. Zhu, and H. Ye (2004)
Science 303, 766c
   Full Text »    PDF »
Response to Comment on "Tubular Graphite Cones".
G. Zhang, X. Bai, X. Jiang, and E. Wang (2004)
Science 303, 766d
   Full Text »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)