Patent ID: 8562905

Claim:
A method, comprising the steps of: (a) providing a first solution that contains a plurality of carbon nanotubes (CNTs); (b) providing a second solution that contains a plurality of platinum (Pt) nanoparticles; (c) combining the first solution and the second solution to form a third solution; and (d) filtering the third solution through a nanoporous membrane using vacuum filtration to obtain a film of nanocomposites of CNTs and Pt nanoparticles, wherein the step of providing the second solution comprises the steps of: dispersing a first amount of potassium tetrachloroplatinate (K 2 PtCl 4 ) in 0.2% SDS to form a fourth solution; and reducing the first amount of K 2 PtCl 4 in the fourth solution with a second amount of (dimethylamino)borane (DMAB) to form the plurality of Pt nanoparticles.