Niobium Oxide (Nb2O5) Nanoparticles – Properties, Applications

Topics Covered

Chemical Properties
Physical Properties
Thermal Properties


Applications of nanoparticles have entered numerous fields like cosmetics, ceramics, electronics, optics and biomedicine. Nanoparticles have a wider scope of applications when compared to elements in their original states. This article will elaborate on the properties and applications of niobium oxide nanoparticles.

Niobium oxide (Nb2O5) nanoparticles are also known as niobium (V) oxide, niobium pentaoxide, dinionium pentaoxide and niobium (5+) oxide. These particles are available in the form of dispersions, coatings and high purity particles. Niobium belongs to Block D, Period 5 while oxygen belongs to Block P, Period 2 of the periodic table.

Chemical Properties

The following tables list the chemical properties of niobium oxide.

Chemical Data
Chemical symbol Nb2O5
CAS No 1313-96-8
Group Niobium 5
Oxygen 16
Electronic configuration Niobium [Kr] 4d45s1
Oxygen [He] 2s2 2p4
Chemical Composition
Element Content (%)
Niobium 69.89
Oxygen 30.07

Physical Properties

Niobium oxide nanoparticles have a powdery appearance. The table below provides the physical properties of these nanoparticles.

Properties Metric Imperial
Density 4.47 g/cm3 0.161 lb/in3
Molar Mass 265.81 g/mol -

Thermal Properties

The thermal properties of niobium oxide nanoparticles are given in the table below:-

Properties Metric Imperial
Melting Point 1512°C 2754°F


The following are the chief applications of niobium oxide:

  • Making of electrochemical capacitors, cathodes
  • Coatings, paints, plastics, nanofibers and nanowires
  • Some catalyst and alloy applications
  • As pigments in printing, packaging and solid fuels
  • Food processing industry as dietary supplements
  • Production of powder metallurgy products.

Source: AZoNano

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