Platinum and gold are filled inside the single walled carbon nanotubes by mixing a purified powder (5 mg) of SWNTs with approx. 10 mg of AuCl4 • xH2O. The mixture was dried at 373 K for 2 h and then heated to 643 K in vacuum (10-3 Torr). For the preparation of Pt filled tubes H2PtCl6 • 6H2O was mixed with purified powder of single walled tubes. The mixture was heated to 773 K in vacuum in a quartz ampoule. The Pd filling of the tubes is achieved by heating the purified nanotube powder with PdCl2 in a sealed quartz ampoule at 873 K [59, 62].
Was this article helpful?