Niobium Oxide (Nb2O5) Nanopowder, Nanoparticles, nanodots or nanocrystals are spherical or faceted high surface area oxide magnetic nanostructured particles. Nanoscale Niobium Oxide Particles are typically 20-100 nanometers (nm) with specific surface area (SSA) in the 25 - 50 m2/g range and also available with an average particle size of 100 nm range with a specific surface area of approximately 7- 10 m2/g.