the nanopowder is a nanostructured material that conforms to the definition of being a powder. It may be a material made of a variety of constituents or it may be just one material.
A nanopowder could be a metal, a ceramic, or just about anything. The definition is that the grain size is typically sub 100 microns in diameter.
Nanopowders and nanomaterials are interesting because at the small scale, materials have fundamentally different properties than at the bulk due to increased surface area to volume ratios. Increased interaction and activity is one of the by products of materials that are nanoscale, which means potentially using less of the material or that even on the nanoscale the properties are so utterly different from that of the bulk scale.
There is much interest in nanopowders and they are findin their way into a variety of uses from drugs and processing to electronics. Its a seriously large industry with a growing market.
nanopowders of metal or metal oxides
nanowires silver AG copper Cu nickel(Ni) wolfram tungsten(W) oxide Fe2O3 nano iron(Fe) nano zinc(Zn) nano tin(Sn) nano indium(ITO) nano bismuth(Bi) etc.
nanopowders of graphene or graphene oxides(GO)
few layer graphene, COOH carboxyl graphene,OH graphene hydroxyl, thiol graphenes, aminated graphene, graphene oxide(GO)
nanopowders of rare earth or rare earth oxides
nano cerium oxide(CeO2)neodymium oxide (Nd2O3)yttrium oxide (Y2O3)dysprosium oxide (Dy2O3)praseodymium oxide (Pr6O11)lanthanum oxide (La2O3)gadolinium oxide (Gd2O3)erbium oxide (Er2O3)europium oxide (Eu2O3)samarium oxide (Sm2O3)terbium oxide (Tb4O7)
holmium oxide (Ho2O3)hulium oxide (Tm2O3}
nanopowders of carbon nanotube
Carbon nanotubes (CNTs), SWNTs, Short CNTs, MWNTs industrial CNTs, Functional CNTs, CNTs
COOH CNTs,-OH MWNTs, CNTs(SWNTs, DWNTs, MWNTs)
nanopowders of mesoporous carbon (CMK-3)
nanoporous carbon molecular sieves mesoporous carbon CMK-3