The present invention provides a new composite material comprising a porous
matrix made of metal, metal alloy or semiconducting material and hollow
fullerene-like nanoparticles of a metal chalcogenide compound or mixture
of such compounds. The composite material is characterized by having a
porosity between about 10% and about 40%. The amount of the hallow
nanoparticles in the composite material is 1-20 wt. %.