Catalysts for manufacturing carbon substances
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United States of America Patent
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Jul 29, 2008
Grant Date -
Jun 26, 2008
app pub date -
Dec 23, 2002
filing date -
Dec 28, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A catalyst for manufacturing carbon substances, such as carbon nanotube that has a diameter of 1000 nm or less, the catalyst containing at least iron, cobalt or nickel of a first element group and tin or indium of a second element group. The catalyst can be formed by at least tin and indium in addition to cobalt or nickel. The former catalyst provides a 2-component type catalyst and a multi-component type catalyst that is composed on the basis of the 2-component type catalyst, and the later catalyst provides a 3-component type catalyst and a multi-component type catalyst that is composed on the basis of the 3-component type catalyst.
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