Purification of fibrous carbon nanohorn aggregate
AssigneeNEC Corporation
InventorMayumi KOSAKA
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Abstract
The purpose of the present invention is to provide a carbon mixture having high electrical conductivity. A carbon mixture according to the present invention is characterized by including a fibrous carbon nanohorn aggregate having a length of 1 μm or more in an amount of 20 wt % or more.
Claims10
A carbon mixture comprising a fibrous carbon nanohorn aggregate having a length of 1 μm or more in an amount of 20% by weight or more.
A carbon mixture comprising a fibrous carbon nanohorn aggregate having a length of 1 μm or more in an amount of 20% by volume or more.
A method for separating and purifying a fibrous carbon nanohorn aggregate with a length of 1 μm or more from a carbon mixture, comprising:
- a step 1 of removing graphite from the carbon mixture,
- a step 2 of dispersing the carbon mixture in a surfactant solution to prepare a dispersion, and
- a step 3 of separating the fibrous carbon nanohorn aggregate from the dispersion with a filter.
Dependencies are inferred from the claim text.