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Pure Appl. Chem. Vol. 74, No. 9, pp. 1571-1580 (2002)

Pure and Applied Chemistry

Vol. 74, Issue 9

Organometallic precursor route to carbon nanotubes*

A. Govindaraj and C. N. R. Rao**

Chemistry and Physics of Materials Unit and CSIR Center of Excellence in Chemistry, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560 064, India

Abstract: Multi-walled as well as single-walled carbon nanotubes are conveniently prepared by the pyrolysis of organometallic precursors, such as metallocenes and phthalocyanines, in a reducing atmosphere. Pyrolysis of organometallics alone or in mixture with hydrocarbons also yields aligned nanotube bundles with useful field emission properties. By pyrolyzing organometallics in the presence of thiophene, Y-junction nanotubes are obtained in large quantities. The junction nanotubes have a good potential in nanoelectronics. Carbon nano-tubes prepared from organometallics are useful for preparing nanowires and nanotubes of materials such as BN, GaN, SiC, and Si3N4.

* Special Topic Issue on the Theme of Nanostructured Advanced Materials

**Corresponding author

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