Patent ID: 9738993
Date: 2017-08-22
CPC Classifications: B01J,B82Y,D01F,H01B,Y10S

Claim:
1. A manufacturing method of carbon nanofibers, wherein an active species including cobalt as a chief component is employed as a catalyst and carbon monoxide is used as a carbon source, and manufacturing is performed under the conditions that said catalyst has 3 to 150 mass % of said active species carried on a carrier composed of a magnesium-containing oxide having a specific surface area of 0.01 to 5 m2/g, a reaction temperature is between 670 and 780° C., partial pressure of carbon monoxide is between 0.04 and 0.98 MPa, and a flow rate of carbon monoxide gas is 2 NL/g of active species·min or more.