Photoresponse of a titanium dioxide chemical sensor

Morphology Control of Metal Oxide Nanocrystals

“…Nanoporous TiO 2 architecture with micropores (<2 nm), mesopores (2-50 nm) and/or macropores (>50 nm) is of considerable interest for both scientific and technical applications. The latter include cosmetics, catalysts 78 , photocatalysts [79][80][81][82] , gas sensors 83,84 , lithium batteries [85][86][87] , biomolecular sensors 88 and dye-sensitized solar cells 89,90 . Crystalline anatase generally exhibits higher properties than rutile in photocatalysts, biomolecular sensors and dye-sensitized solar cells.…”

Controlling synthesis and gas-sensing properties of ordered mesoporous In2O3-reduced graphene oxide (rGO) nanocomposite

“…When ethanol is introduced, it will react with the oxygen species and the captured electron will be injected back to the conduction band, leading to an increase in electron concentration and conductivity. When the operating temperature increases, the pre-absorbed oxygen molecules could capture more electrons [5,25,26], thus resulting a higher response. However, chemisorbed oxygen species would tend to drop from the surface of sensing materials as further increasing temperature, thus leading a lower response.…”

Nanofabrication of Metal Oxide Nanostructures in Aqueous Solutions

“…Nanoporous TiO 2 architecture with micropores (<2 nm), mesopores (2-50 nm) and/or macropores (>50 nm) is of considerable interest for both scientific and technical applications. The latter include cosmetics, catalysts 78 , photocatalysts [79][80][81][82] , gas sensors 83,84 , lithium batteries [85][86][87] , biomolecular sensors 88 and dye-sensitized solar cells 89,90 . Crystalline anatase generally exhibits higher properties than rutile in photocatalysts, biomolecular sensors and dye-sensitized solar cells.…”