P2NG.19 - Wet Oxidation of TiO2 nanoflakes and Their Gas Sensing Properties
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-2 - Nanomaterials for Gas Sensing
- Author(s)
- O. Sisman, N. Poli, D. Zappa, E. Comini - Sensor Laboratory, University of Brescia, Brescia (Italy)
- Pages
- 880 - 881
- DOI
- 10.5162/IMCS2018/P2NG.19
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
One of the popular synthesis methods of TiO2 nanostructures is hydrothermal method. Besides offering huge amount of variety, the hydrothermal methods propose easy, clean and cheap processes. TiO2 nanoflakes were fabricated on alumina substrate with wet oxidation in hydrogen peroxide solution. The formation process of nanoflakes and gas sensing properties were investigated. SEM (scanning electron microscope) was used to display the surface of structures covering the samples. Various concentrations of hydrogen, ethanol, carbon monoxide, nitrogen oxide and acetonitrile gases were tested under humid airflow in temperature range between 350-600 ºC.