Method for preparing nano-carbon fiber and nano-carbon fiber
AssigneeFutaba Corporation
InventorsHirofumi Takikawa, Shigeo Itoh
Life of this patent
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Abstract
A carbon nano-fiber, particularly twisted carbon nano-fiber such as a carbon nano-coil, carbon nano-twist, carbon nano-rope is produced by means of a catalyst CVD method using carbon-containing gas as a raw material and a catalyst comprising one or plural components selected from the group consisting of Cr, Mn, Fe, Co, Ni and oxide thereof and one or plural components selected from the group consisting of Cu, Al, Si, Ti, V, Nb, Mo, Hf, Ta, W and oxide thereof is used.
Claims10
A method of preparing a carbon nano-fiber comprising the step of growing the carbon nano-fiber on a catalyst by means of a catalyst CVD method using carbon-containing raw material gas, wherein said catalyst comprises one component selected from the group consisting of Cr, Mn, Co, Ni and oxide thereof and one or plural components selected from the group consisting of Zn, In, Sn, Sb and oxide thereof.
A method of preparing a carbon nano-fiber comprising the step of growing the carbon nano-fiber on a catalyst by means of a catalyst CVD method using carbon-containing raw material gas, wherein said catalyst comprises plural components selected from the group consisting of Cr, Mn, Fe, Co, Ni and oxide thereof and one or plural components selected from the group consisting of Zn, In, Sn, Sb and oxide thereof.
A method of preparing a carbon nano-fiber comprising the step of growing the carbon nano-fiber on a catalyst by means of a catalyst CVD method using carbon-containing raw material gas, wherein said catalyst comprises one or plural components selected from the group consisting of Cr, Mn, Fe, Co, Ni and oxide thereof and one or plural components selected from the group consisting of Cu, Al, Si, Ti, V, Nb, Mo, Hf, Ta, W and oxide thereof.
A method of preparing a carbon nano-fiber comprising the step of growing the carbon nano-fiber on a catalyst by means of a catalyst CVD method using carbon-containing raw material gas, wherein said catalyst comprises one or plural components selected from the group consisting of Cr, Mn, Fe, Co, Ni and oxide thereof and one or plural components selected from the group consisting of Zn, In, Sn, Sb and oxide thereof.
A carbon nano-fiber formed in a twisted state at least a part thereof having a fiber outer diameter of 1 nm˜1 μm, a twist pitch of 1 nm˜500 nm and a length of 5 nm and above.
A carbon nano-fiber formed in a state of rope at least a part thereof having a fiber outer diameter of 3 nm˜1 μm, a twist pitch of 3 nm˜1 μm and a length of 5 nm and above.
Dependencies are inferred from the claim text.