Abstract
Nanoporous metals and nanometals need stabilizers which prevent them from sintering or oxidizing. Nanoporous Pt, Ni, or Pd, which were prepared by using silica nanoparticles or PVA films as templates, can be stabilized by a trace or small amount of carbons, which coat surfaces of the metals. Also, single wall carbon nanohorn can be a good stabilizer and catalyst support. The properties of such nanocarbons are reviewed for stabilization of nanometals.
