| 摘要 |
Cohesive carbon assemblies are prepared by obtaining a functionalized carbon starting material in the form of powder, particles, flakes, loose agglomerates, aqueous wet cake, or aqueous slurry, dispersing the carbon in water by mechanical agitation and/or refluxing, and substantially removing the water, typically by evaporation, whereby the cohesive assembly of carbon is formed. The method is suitable for preparing free-standing, monolithic assemblies of carbon nanotubes in the form of films, wafers, discs, fiber, or wire, having high carbon packing density and low electrical resistivity. The method is also suitable for preparing substrates coated with an adherent cohesive carbon assembly. The assemblies have various potential applications, such as electrodes or current collectors in electrochemical capacitors, fuel cells, and batteries, or as transparent conductors, conductive inks, pastes, and coatings. |
| 主权项 |
1. An article comprising a substrate and a cohesive carbon assembly coated onto at least one surface of the substrate, wherein the cohesive carbon assembly is prepared by a method comprising the steps of:
a. obtaining a functionalized carbon starting material in a form of powder, particles, flakes, loose agglomerates, aqueous wet cake, or aqueous slurry; said functionalized carbon starting material is a carbon starting material which has been covalently or non-covalently functionalized such that it is dispersible in water; b. dispersing the functionalized carbon starting material in an aqueous solution in a prescribed ratio to form a dispersion; and c. substantially removing liquid from the dispersion in a controlled manner, whereby the cohesive carbon assembly is formed. |
