Worlds Smallest Nanotubes Created - News Item

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Dec 8 2003

Researchers from Shinshu University, CNRI Corporation, Japan and Massachusetts Institute of Technology have made the smallest free-standing single-walled carbon nanotube to date. The tube is around 0.43 nm in diameter and was produced using a floating-reactant method.

The procedure for making small nanotubes normally utilises confinement in a template like porous material or the centre of a multiwalled nanotube. In this case researchers used a nanozeolite floating-reactant chemical vapour deposition method. Here the zeolite powder provides a nanotube template by limiting the size of the catalytic iron particles. The zeolite is also a support for the catalyst and a floating substrate.

Posted 7^th August 2003

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