Patent ID: 8246861

Claim:
A method for making a carbon nanotube composite comprising: providing a free-standing carbon nanotube structure and a reacting liquid having a metal compound dissolved therein; treating the free-standing carbon nanotube structure by applying the reacting liquid on the free-standing carbon nanotube structure; and heating the treated free-standing carbon nanotube structure to decompose the metal compound; wherein a material of the metal compound is selected from the group consisting of manganese nitrate, ferric nitrate, cobalt nitrate, nickel nitrate, copper nitrate, zinc nitrate, copper acetate, nickel acetate, cobalt acetate, zinc acetate, silver nitrate, platinum chloride, rhodium chloride, tin dichloride, tin tetrachloride, water-soluble ruthenium chloride, palladium chloride, chloroplatinic acid, chloroauric acid, and combinations thereof.