Lyson, B. and Gwizdz, P. and Czapla, A. and Lubecka, M. and Zakrzewska, K. and Biernacka, K. and Radecka, M. and Michalow-Mauke, K. and Graule, T. and Balogh, A. G. and Lauterbach, S. and Kleebe, H.-J. (2011):
TiO2: Cr nanopowders for hydrogen sensing.
In: Procedia Engineering, 25 (0), pp. 749-752. [Article]
Abstract
The aim of this research was to use nanocrystalline TiO2 and TiO2: Cr (0.1–10 at. % Cr) obtained by Flame Spray Synthesis, FSS, for hydrogen sensing. Morphological properties of nanopowders were investigated by Brunauer–Emmett–Teller, BET, adsorption isotherms, X-ray Diffraction, XRD, Scanning Electron Microscopy, SEM, and Transmission Electron Microscopy, TEM. Nanosensors were prepared in a form of circular tablets by pressing the nanopowder at the pressure of 25 MPa and heating up to 400oC. Dynamic changes in the electrical resistance ΔR/Ro upon hydrogen exposure were detected over low-to- medium concentration range of 50-3000 ppm at 200-400oC. The influence of particle size and Cr content on the sensor response was studied.
| Item Type: | Article |
|---|---|
| Erschienen: | 2011 |
| Creators: | Lyson, B. and Gwizdz, P. and Czapla, A. and Lubecka, M. and Zakrzewska, K. and Biernacka, K. and Radecka, M. and Michalow-Mauke, K. and Graule, T. and Balogh, A. G. and Lauterbach, S. and Kleebe, H.-J. |
| Title: | TiO2: Cr nanopowders for hydrogen sensing |
| Language: | English |
| Abstract: | The aim of this research was to use nanocrystalline TiO2 and TiO2: Cr (0.1–10 at. % Cr) obtained by Flame Spray Synthesis, FSS, for hydrogen sensing. Morphological properties of nanopowders were investigated by Brunauer–Emmett–Teller, BET, adsorption isotherms, X-ray Diffraction, XRD, Scanning Electron Microscopy, SEM, and Transmission Electron Microscopy, TEM. Nanosensors were prepared in a form of circular tablets by pressing the nanopowder at the pressure of 25 MPa and heating up to 400oC. Dynamic changes in the electrical resistance ΔR/Ro upon hydrogen exposure were detected over low-to- medium concentration range of 50-3000 ppm at 200-400oC. The influence of particle size and Cr content on the sensor response was studied. |
| Journal or Publication Title: | Procedia Engineering |
| Journal volume: | 25 |
| Number: | 0 |
| Uncontrolled Keywords: | Cr dopant, Flame Spray Synthesis, gas sensors, hydrogen detection, TiO2 nanopowders |
| Divisions: | 11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science 11 Department of Materials and Earth Sciences > Material Science > Material Analytics 11 Department of Materials and Earth Sciences > Earth Science 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 19 Jan 2012 13:16 |
| Official URL: | http://www.sciencedirect.com/science/article/pii/S1877705811... |
| Additional Information: | Eurosensors XXV |
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