Patent ID: 7438885

Claim:
A process for synthesizing carbon nanotubes filled with palladium nanoparticles comprising the steps of: preparing a palladium chloride (PdCl 2 ) solution in a container; immersing a graphite electrode assembly, having two graphite electrodes, into the PdCl 2 solution; connecting the graphite electrodes to a direct current power supply; bringing the electrodes into contact with each other to strike an arc; vaporizing the PdCl 2 solution to leave a residue of Pd-nanoparticles; separating the electrodes to sustain the arc inside the solution; forming graphene layers that roll away from the electrodes and simultaneously encapsulate the Pd-nanoparticles; putting the container with electrode assembly in a water-cooled bath; and collecting Pd-nanoparticles entrapped in carbon nanotubes.