SYNTHESIS OF NANOSTRUCTURED ZrO<sub>2</sub> FOR GAS SENSING APPLICATION
| Main Authors: | G. Patil, Pratap, Kajale, D. D., Patil, V. P., Patil, G. E., Jain, G. H. |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2012
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/1148179 |
Daftar Isi:
- Nanocrystalline ZrO2 (Zirconia) has been synthesized by a conventional precipitation method. The structural, morphological, microstructural, optical and gas-sensing properties of ZrO2 were investigated by using X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis spectroscopy and static gas sensing unit, respectively. X-ray diffraction pattern and TEM of the synthesized product reveal their nano-crystalline nature with grain size 18 nm and 20 nm, respectively. Gas sensing properties of their thick films, which were fabricated by screen-printing to various gases (O2, NO2, C2H5OH, CO, CO2, NH3, LPG, H2S and H2) were tested in ambient air. The ZrO2 thick films showed a high response and selectivity to H2S gas. The effect of operating temperature, gas concentration on the sensing characteristics of these films towards H2S was discussed..