TiO2 Nanotubes for Room Temperature Toluene Sensor

Abstract

TiO 2 nanotubes were used to prepare gas sensor and the gas sensing properties towards toluene were analyzed. Titania nanotube arrays were fabricated via electrochemical anodization method in glycerol electrolytes containing NH 4 F. The sensor fabricated from these nanotubes exhibits a good response to toluene at room temperature with good sensitivity. The toluene sensing proper-ties were tested from 20 to 150 ppm concentrations.