Abstract: A method for fabricating a continuous vapor grown carbon fiber mat including: (a) providing a substrate which has a catalyst on its surface; (b) placing the substrate in a furnace; (c) introducing hydrogen, ammonia, or combinations thereof into the furnace; (d) adjusting a temperature of the furnace to 400° C. to 900° C. to proceed heat treatment for 15 to 90 minutes; (e) adding a carbon-containing compound into the furnace and adjusting the ratio of the carbon-containing compound and the hydrogen, ammonia, or combinations thereof; (f) adjusting the temperature of the furnace to 600° C. to 1200° C. to crack the carbon-containing compound, and thereby forming a carbon fiber mat, where time for reaction is 1 to 3 hours. A continuous vapor grown carbon fiber mat and a graphitized carbon fiber mat are also provided.

Abstract: A method for fabricating a continuous vapor grown carbon fiber mat including: (a) providing a substrate which has a catalyst on its surface; (b) placing the substrate in a furnace; (c) introducing hydrogen, ammonia, or combinations thereof into the furnace; (d) adjusting a temperature of the furnace to 400° C. to 900° C. to proceed heat treatment for 15 to 90 minutes; (e) adding a carbon-containing compound into the furnace and adjusting the ratio of the carbon-containing compound and the hydrogen, ammonia, or combinations thereof; (f) adjusting the temperature of the furnace to 600° C. to 1200° C. to crack the carbon-containing compound, and thereby forming a carbon fiber mat, where time for reaction is 1 to 3 hours. A continuous vapor grown carbon fiber mat and a graphitized carbon fiber mat are also provided.

Abstract: A method for fabricating a semi-continuous vapor grown carbon fiber mat, comprising: (a) providing a substrate which has a catalyst on its surface; (b) placing said substrate in a furnace; (c) introducing hydrogen, ammonia, or combinations thereof into said furnace; (d) adjusting a temperature of said furnace to 400° C. to 900° C. to proceed heat treatment for 15 to 90 minutes; (e) adding a carbon-containing compound into said furnace and adjusting the ratio of said carbon-containing compound and said hydrogen, ammonia, or combinations thereof; (f) adjusting the temperature of said furnace to 600° C. to 1200° C. to crack said carbon-containing compound, and thereby forming a carbon fiber mat, wherein time for reaction is 1 to 3 hours. The present invention also provides a semi-continuous vapor grown carbon fiber mat and a graphitized carbon fiber mat.