Amorphous nano-scale carbon tube and production method therefor
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United States of America Patent
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Nov 1, 2005
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Jun 25, 2001
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Dec 28, 1998
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Abstract
Straight, nano-scale-order amorphous carbon tubes having a long-term stable ability for storing various kinds of gases and being stable in shape, and a novel process for producing said carbon tubes with high purity, high yield and high mass-productivity are provided. The amorphous nano-scale carbon tubes are prepared by subjecting a heat-decomposable resin having a decomposition temperature of 200 to 900.degree. C. to an excitation treatment in the presence of a metal powder and/or a metal salt, or by subjecting a carbon material containing --C.ident.C-- and/or .dbd.C.dbd. to a heat-treatment at 3000.degree. C. or lower.
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