TiO2 Nanotubes: Recent Advances in Synthesis and Gas Sensing Properties

Sensors

Vardan Galstyan¹  Elisabetta Comini¹  Guido Faglia² 

[1] Sensor Lab, Department of Information Engineering, University of Brescia and CNR INO, Via Valotti 9, 25133 Brescia, Italy;

关键词: titanium dioxide;    nanotubes;    electrochemical anodization;    gas sensors;   

DOI  :  10.3390/s131114813

来源: mdpi

【 摘 要 】

Synthesis—particularly 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 TiO₂ nanotubes.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.