Patent ID: 8617507

Claim:
A method for fabricating a carbon fiber mat, comprising the following steps: providing a substrate with a catalyst on its surface; placing said substrate in a furnace; introducing hydrogen, ammonia, or a combination thereof into said furnace; adjusting the temperature of said furnace to 400Â° C. to 900Â° C. to proceed a heat treatment for 15 to 90 minutes, thereby obtaining nucleation points on said substrate, in which the density of said nucleation points distributes between 1Ëœ50 sites/m 2 , and the size of said nucleation points distributes between 10Ëœ2000 nm; adding a carbon-containing compound into said furnace and adjusting the ratio of said carbon-containing compound and said hydrogen, ammonia, or combinations thereof; and adjusting the temperature of said furnace to 600Â° C. to 1200Â° C. to crack said carbon-containing compound and reacting for 1 to 3 hours, and thereby forming a carbon fiber mat.