| abstract |
A metal oxide chelated graphene and carbon nanotube hybrid foam 10, 20 may be formed by a two-step process. The method 100 comprises a plurality of at least one graphene layer 14, 24 and a plurality of carbon nanotubes 16, 30 of a porous metal substrate 12, by chemical vapor deposition, forming a coated porous metal substrate 12, 22. 22) is formed on a surface 13, 26, and a plurality of metal oxide nanostructures are formed on a surface 13 of a coated porous metal substrate 12, 22, so as to form metal oxide chelated graphene and carbon nanotube hybrid foam 10, 20. 26) precipitation. |