Enhanced ethanol sensing properties of TiO2 nanotube sensors

TiO2 nanotube arrays were prepared for use as gas sensors by anodizing Ti thin foils. Transmission electron microscopy revealed a tube diameter and length ranging from 70 to 120nm and 300 to 400nm, respectively. The TiO2 nanotube array sensors showed responses of 68,000 and 1,380,000% to 300 and 100...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2012-10, Vol.173, p.441-446
Hauptverfasser:	Kwon, Youngjae, Kim, Hyunsu, Lee, Sangmin, Chin, In-Joo, Seong, Tae-Yeon, Lee, Wan In, Lee, Chongmu
Format:	Artikel
Sprache:	eng
Schlagworte:	Arrays Ethanol Ethyl alcohol Gas sensors Nanocomposites Nanomaterials Nanostructure nanotubes Response Sensors TiO2 nanotubes Titanium dioxide transmission electron microscopy
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	TiO2 nanotube arrays were prepared for use as gas sensors by anodizing Ti thin foils. Transmission electron microscopy revealed a tube diameter and length ranging from 70 to 120nm and 300 to 400nm, respectively. The TiO2 nanotube array sensors showed responses of 68,000 and 1,380,000% to 300 and 1000ppm C2H5OH at 250°C, respectively. These values are far superior to the responses obtained by most oxide one-dimensional nanostructures reported in the literature. In addition, the ethanol sensing mechanism of the TiO2 nanotube array sensors is discussed.
ISSN:	0925-4005 1873-3077
DOI:	10.1016/j.snb.2012.07.062