%0 Journal Article %T TiO2 Nanotubes: Recent Advances in Synthesis and Gas Sensing Properties %A Vardan Galstyan %A Elisabetta Comini %A Guido Faglia %A Giorgio Sberveglieri %J Sensors %D 2013 %I MDPI AG %R 10.3390/s131114813 %X Synthesis¡ªparticularly by electrochemical anodization-, growth mechanism and chemical sensing properties of pure, doped and mixed titania tubular arrays are reviewed. The first part deals on how anodization parameters affect the size, shape and morphology of titania nanotubes. In the second part fabrication of sensing devices based on titania nanotubes is presented, together with their most notable gas sensing performances. Doping largely improves conductivity and enhances gas sensing performances of TiO 2 nanotubes %K titanium dioxide %K nanotubes %K electrochemical anodization %K gas sensors %U http://www.mdpi.com/1424-8220/13/11/14813