Metal oxide nanoparticles (TiO2, ZnO, etc.)

Nickel oxide nanoparticles for electrochromic devices

Yttria-stabilized zirconia nanoparticles for solid oxide fuel cells

Magnesium oxide nanoparticles for CO2 capture

Tungsten oxide nanoparticles for electrochromic smart glass

Bismuth oxide nanoparticles for radiation shielding

Manganese oxide nanoparticles for supercapacitor electrodes

Lanthanum oxide nanoparticles for phosphor materials

Vanadium oxide nanoparticles for thermochromic coatings