Porous filamentous nanocarbon and method of forming the same

Abstract

A method for forming a porous filamentous nanocarbon involves radially forming a tunnel-like mesopore from an outer periphery toward the central axis of a filamentous nano carbon by attaching a material having a metal catalyst on an outer periphery of the filamentous nanocarbon and removing a carbon hexagonal plane through gasification in virtue of the metal catalyst.

1 . A method for forming a porous filamentous nanocarbon, the method comprising:
 radially forming a tunnel-like mesopore from an outer periphery toward the central axis of a filamentous nano carbon by attaching a material having a metal catalyst on an outer periphery of the filamentous nanocarbon and removing a carbon hexagonal plane through gasification in virtue of the metal catalyst.   
   
   
       2 . The method of  claim 1 , wherein the metal catalyst includes at least one selected from the groups, V, VI, VII, and □ of the periodic table. 
   
   
       3 . The method of  claim 2 , wherein the metal catalyst is at least one selected from the group consisting of iron (Fe), nickel (Ni), copper (Cu), platinum (Pt), manganese (Mn), vanadium (V), and an alloy thereof. 
   
   
       4 . The method of  claim 1 , wherein the mesopore is formed according as a pre-determined portion of the filamentous nanocarbon on which the metal catalyst is attached is removed through a selective gasification reaction in virtue of the metal catalyst. 
   
   
       5 . The method of  claim 4 , wherein the mesopore is formed along the arrangement direction of the carbon hexagonal plane as the predetermined portion of the carbon hexagonal plane on which the metal catalyst is attached is removed through the selective gasification reaction. 
   
   
       6 . The method of  claim 1 , wherein a reactant for gasifying the carbon hexagonal plane in virtue of the metal catalyst includes hydrogen gas. 
   
   
       7 . The method of  claim 6 , wherein the gasification temperature is in a range of 500° C. to 900° C. 
   
   
       8 . The method of  claim 1 , wherein a reactant for gasifying the carbon hexagonal plane in virtue of the metal catalyst includes oxygen gas. 
   
   
       9 . The method of  claim 8 , wherein an activation temperature is in a range of 200° C. to 400° C.