Patent ID: 11970764
Assignee: UT-BATTELLE, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 0:
1. A method for producing a structure containing an array of multi-walled carbon nanotubes on a metal substrate, the method comprising:
(i) subjecting a metal substrate to a surface oxidation process in which the metal substrate is subjected to a first temperature of 600-1000° C. in an O2-containing atmosphere and under a first reduced pressure of at least 0.01 atm and less than 1 atm to result in oxidation of a surface of said metal substrate, wherein said first temperature is at least 100° C. below the melting point of the metal;
(ii) subjecting the metal substrate to a surface reduction process in which the metal substrate is subjected to a second temperature of 600-1000° C. in a reducing atmosphere and under a second reduced pressure of at least 0.01 atm and less than 1 atm to result in reduction of the surface of said metal substrate, wherein said reducing atmosphere contains hydrogen gas;
(iii) subjecting the metal substrate to a third reduced pressure of no more than 0.1 atm; and
(iv) contacting the metal substrate, while at the third reduced pressure and under an inert or reducing atmosphere, with an organic substance at a third temperature of 700-900° C. for at least 1 minute, to result in production of said structure containing an array of multi-walled carbon nanotubes on said metal substrate.