Fabrication of Ruthenium–Carbon Nanotube Nanocomposites in Supercritical Water

Metal nanoparticles on carbon nanotubes (CNTs) are expected to be efficient catalysts for several industrially important processes. Here, the successful preparation of well-dispersed Ru–CNT nanocomposites—which are subsequently demonstrated to be very active for the hydrogenation of benzene to cyclohexane—using RuCl3·H2O as the precursor is reported. The Figure shows a transmission electron microscopy image of nano- composites used four times as a catalyst.