CATALYST FOR CARBON NANOTUBE PRODUCTION
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United States of America Patent
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Jan 8, 2015
app pub date -
Feb 22, 2013
filing date -
Feb 22, 2012
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Abstract
The present invention provides a catalyst for carbon nanotube production capable of continuously mass-producing a carbon nanotube having a long fiber length and excellent conductivity. The catalyst for carbon nanotube production of the present invention includes a carrier particle which is configured to include a metal oxide and has voids therein, and a metal catalyst which is carried on the carrier particle. In a pore distribution curve of the carrier particle which is obtained by a mercury penetration method, when an integrated value of volumes of pores having a pore size of equal to or larger than 0.1 μm is set to be a volume of voids per unit mass of the carrier particle, the volume of the voids is set to be in a range of 0.6 cm3/g to 2.2 cm3/g.
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