High-performance ethanol gas sensor using TiO2 nanostructures

. TiO 2 nanostructures were synthesized by simple chemical routes. As-synthesized nanostructures were characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy and sele...

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Bibliographic Details
Published in:European physical journal plus 2017-07, Vol.132 (7), p.306, Article 306
Main Authors: Priyanka, K. P., Vattappalam, S. C., Sankararaman, S., Balakrishna, K. M., Varghese, Thomas
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Chemical synthesis
Complex Systems
Condensed Matter Physics
Diffraction patterns
Ethanol
Gas sensors
Gases
High resolution electron microscopy
Industrial production
Low pressure
Low temperature
Mathematical and Computational Physics
Metal oxides
Molecular
Nanocomposites
Nanoparticles
Nanostructure
Operating temperature
Optical and Plasma Physics
Physics
Physics and Astronomy
Recovery time
Regular Article
Scanning electron microscopy
Sensors
Solvents
Spectrum analysis
Temperature
Theoretical
Titanium dioxide
Transmission electron microscopy
X-ray diffraction
X-ray spectroscopy
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Summary:. TiO 2 nanostructures were synthesized by simple chemical routes. As-synthesized nanostructures were characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy and selected area diffraction patterns. In the present work, the sensing element was fabricated as thin pellets of TiO 2 nanoparticles without using any sensitizers coating. A novel approach of adopting gas sensing measurements of ethanol vapours at a low pressure condition inside a vacuum system has been achieved. All the samples show high sensor response towards ethanol vapour detection at relatively low operating temperatures. Thus, a low-cost industrial production of efficient ethanol gas sensor with good response and recovery time is possible with the synthesized TiO 2 nanostructures.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/i2017-11581-x