METHOD FOR PREPARING CARBON NANOTUBES, CARBON NANOTUBE FILMS, AND ELECTRONIC DEVICES
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United States of America Patent
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Issued Date -
Mar 3, 2011
app pub date -
Aug 25, 2010
filing date -
Aug 31, 2009
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Abandoned
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Abstract
A method for preparing carbon nanotubes for synthesizing carbon nanotubes, fabricating carbon nanotube films and electronic devices is provided. The method for preparing carbon nanotubes can repair the defects in side walls of carbon nanotubes under stable condition easily and prepare carbon nanotubes of excellent properties. The method utilizes uric acid solution or ammonia water to treat carbon nanotubes after acidifying the carbon nanotubes by refluxing with nitric acid. The treatment temperature is, for example, 25° C.˜90° C., and treatment time is at least two 2 days. Preferably, the carbon nanotubes are treated with thionyl chloride solution before being treated with uric acid solution or ammonia water.
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