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Pure Appl. Chem. Vol. 72, Nos. 1-2, pp. 21-33, 2000

Special Topic Issue on the Theme of
Nanostructured Systems


Metal nanoparticles, nanowires, and carbon nanotubes

C. N. R. Rao*, G. U. Kulkarni, A. Govindaraj, B. C. Satishkumar, and P. John Thomas

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

Abstract: The size-dependent metal to nonmetal transition in metal nanoparticles has been investigated using photoelectron and tunneling spectroscopic techniques. Metal nanoparticles capped by thiols are shown to organize into ordered 2D and 3D structures. Single-walled nanotubes and aligned carbon nanotube bundles have been synthesized by controlling the size of metal nanoparticles produced in situ during the pyrolysis of precursors. Nanowires of gold and other metals have been produced in the capillaries of the single-walled nanotubes.

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