Title :
Carbon nanotube/TiO2 nanotube hybrid films as resistive gas sensor
Author :
Sayago, I. ; Aleixandre, Manuel ; Horrillo, M.C. ; Garriga, R. ; Kukovecz, A. ; Munoz, Eugenio
Author_Institution :
Inst. de Seguridad de la Inf. (GRIDSEN), Madrid, Spain
Abstract :
Films of a single-walled carbon nanotube (SWCNT)/TiO2 nanotube (NT) hybrid have been tested for the first time as active layers for resistive gas sensors. Sensitive layers were prepared by airbrushing composite dispersions on alumina substrate. Sensor responses were established by resistance measurements from 25 to 200°C in air atmosphere with different pollutant gases (toluene, octane, NO2, H2 and NH3). In order to investigate the sensitive characteristics of sensors, the experimental results were compared to the responses of SWCNT sensors. The hybrid sensor exhibits greater response than the SWCNT sensor.
Keywords :
carbon nanotubes; composite materials; gas sensors; nanosensors; thin film sensors; C; SWCNT sensor; airbrushing composite dispersion; alumina substrate; octane; pollutant gas; resistance measurement; resistive gas sensor; single-walled carbon nanotube-TiO2 nanotube hybrid film; temperature 25 degC to 200 degC; toluene; Films; Gas detectors; Gases; Resistance; Sensitivity; Temperature sensors; Carbon nanotubes; TiO2 nanotubes; gas sensor; hybrid layer;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6626835
