Nanofiber applications
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Nanofiber applications

Inorganic materials

Inorganic materials are used in many common applications and surround us in everyday life. Inorganic material in nanofiber form may offer the same or even better performance. The nanofibers are composed of ceramic or metal oxides. Its manufacturing process differs from the manufacture of organic nanofibers. The inorganic nanofibers are produced in bulk and require additional processing or calcinations to remove organic compounds from the material.

The main applications for inorganic nanofiber usage are catalysis (e.g. photocatalysis), electrode materials, sensors, nanocomposites (increasing of mechanical properties, electric and magnetic properties etc.), in medicine, and cosmetics.

Nanofiber benefits

•    Electron and mass transport properties
•    Light absorption
•    Diffusion of species
•    Mechanically stable structure
•    Nanofibers with electric and magnetic properties (nanocomposites)

Technological description

•    Fiber diameter: 120 – 700 nm
•    Fiber length: from few up to hundreds of micrometers
•    Surface area: from few up to hundreds of m2/g
•    Crystal structure: given by preparation process

Example of inorganic nanofibers

                  Chemical formula        Full name                   Crystal structure       Usage                 
                  TiO2        Titanium dioxide     Anatase, Rutile       DSSC anode; Catalyst;
      Cosmetics
                  SiO2        Silicon dioxide     Amorpohous       Biosensors; Sorbents;
      Thermal insulators
                  Li4Ti5O12        Lithium titanate     Spinel       Anode in Li-ion batteries;
      Fuel cells; Supercapacitors
                  SnO2        Tin dioxide     Rutile (tetragonal)       Sensors; Catalyst;
      Semiconductors
                  Al2O3        Aluminium oxide     Alpha, Gamma       High temperature filtration;
      Catalyst support; Polymer
      nanocomposites