Doped thin metal oxide films for catalytic gas sensors

Shape-Dependent Compressibility of TiO2 Anatase Nanoparticles

“…Among these, rutile is the thermodynamically most stable phase at ambient conditions, whereas anatase and brookite are stable at low temperature. – Major technological applications of these materials include pigments, plastics, cosmetics, electronics, and catalytic industries. Notably, the anatase phase has been used in photocatalysts, dye-sensitized solar cells, gas sensors, and biomedicine. – Functional anatase nanoparticles, tuned either in particle size or shape, have enhanced photocatalytic effect and larger band gap energy than in bulk state. , Pressure is another means to control the size and shape of a solid both in microscopic and atomistic scale and, hence, can give rise to corresponding property changes. To form a basis of pressure-dependent property tunability of various functional nanoparticles, we have investigated two shape-contrasting anatase nanoparticles along with a bulk sample using monochromatic synchrotron X-ray and a diamond-anvil cell.…”

Nitrogen dioxide gas sensors based on titanium dioxide thin films deposited on langasite

“…Among them, rutile is the most thermodynamically stable with rutile (110) being the most common and stable crystal face. However, it is known that the anatase has a higher photocatalytic activity and better gas sensing properties than rutile [11].…”

TiO2 nanoceramic films prepared by ion beam assisted evaporation for optical application

“…Amorphous TiO 2 thin films are formed at low substrate temperatures [1][2][3][4][5]. Structural changes may occur during the heating process [2].…”