Strontium Titanate (SrTiO3) Nanoparticles – Properties, Applications

Applications of nanoparticles have dominated numerous fields such as pharmaceutical, cosmetics, biomedicine and electronics. This article will elaborate on the properties and applications of strontium titanate nanoparticles.

Strontium titanate (SrTiO3) nanoparticles are black spherical particles having a high surface area. They are available in coated, dispersed, high and ultra high purity forms. They are known by other names such as strontium titanium trioxide, strontium titanium oxide and strontium dioxido(oxo)titanium. Strontium belongs to Block S, Period 5 while titanium belongs to Block D, Period 4 and oxygen belongs to Block P and Period 2 of the periodic table.

Chemical Properties

The following tables list the chemical properties of strontium titanate.

Chemical Data
Chemical symbol SrTiO3
CAS No 12060-59-2
Group Strontium 2
Titanium 4
Oxygen 16
Electronic configuration Strontium [Kr] 5s2
Titanium [Ar] 3d2 4s2
Oxygen [He] 2s2 2p4
Chemical Composition
Element Content (%)
Strontium 47.7%
Titanium 26.1%
Oxygen 26.2%

Physical Properties

Strontium titanate nanoparticles appear in the form of a black powder having a spherical surface area. The table below provides the physical properties of these nanoparticles.

Properties Metric Imperial
Density 4.81 g/cm3 0.173 lb/in3
Molar Mass 183.49 g/mol -

Thermal Properties

The thermal properties of strontium titanate nanoparticles are given in the table below.

Properties Metric Imperial
Melting Point 2080°C 3776°F
Boiling Point >3000°C >5432°F


Given below are some of the chief applications of strontium titanate:

  • In tunable microwave capacitors
  • Flat panel displays, field emission displays
  • Microwave solitons, PTC thermistors and varistors
  • Magnetic field insensitive thermometers
  • Ultralow-temperature scanning microscopes
  • Semiconductive ceramics
  • Pyroelectric far-infrared detectors
  • Alloy and catalyst applications.

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