Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas
The SiO<sub>2</sub>ZrO<sub>2</sub> composite films were prepared by means of sol-gel technology and characterized by scanning electron microscopy, energy dispersive X-ray (EDX) analysis, and X-ray diffraction. The presence of the stable monoclinic ZrO<sub>2</sub>...
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| Format: | Article |
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MDPI AG
2018-12-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/6/4/67 |
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| author | Tatiana N. Myasoedova Tatiana S. Mikhailova Galina E. Yalovega Nina K. Plugotarenko |
| author_facet | Tatiana N. Myasoedova Tatiana S. Mikhailova Galina E. Yalovega Nina K. Plugotarenko |
| author_sort | Tatiana N. Myasoedova |
| collection | DOAJ |
| description | The SiO<sub>2</sub>ZrO<sub>2</sub> composite films were prepared by means of sol-gel technology and characterized by scanning electron microscopy, energy dispersive X-ray (EDX) analysis, and X-ray diffraction. The presence of the stable monoclinic ZrO<sub>2</sub> with an impurity of tetragonal phases is shown. The film surface is characterized by the presence of ZrOCl<sub>2</sub>·6H<sub>2</sub>O or ZrCl(OH)/ZrCl(OH)<sub>2</sub> grains. The crystallite size negligibly depends on the annealing temperature of the film and amount to 10⁻12 nm and 9⁻12 nm for the films thermally treated at 200 °C and 500 °C, respectively. The film’s resistance is rather sensitive to the presence of NO<sub>2</sub> impurities in the air at a low operating temperature (25 °C). Accelerated stability tests of the initial resistance showed high stability and reproducibility of the sensor based on the SiO<sub>2</sub>ZrO<sub>2</sub> film thermally treated at 500 °C. |
| first_indexed | 2024-12-14T02:17:23Z |
| format | Article |
| id | doaj.art-ccd8d40cfb8f4b9db350866a20510998 |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-12-14T02:17:23Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-ccd8d40cfb8f4b9db350866a205109982022-12-21T23:20:35ZengMDPI AGChemosensors2227-90402018-12-01646710.3390/chemosensors6040067chemosensors6040067Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> GasTatiana N. Myasoedova0Tatiana S. Mikhailova1Galina E. Yalovega2Nina K. Plugotarenko3Institute of Nanotechnologies, Electronics and Equipment Engineering, Southern Federal University, Chekhov str. 2, 347928 Taganrog, RussiaInstitute of Nanotechnologies, Electronics and Equipment Engineering, Southern Federal University, Chekhov str. 2, 347928 Taganrog, RussiaFaculty of Physics, Southern Federal University, Zorge str. 5, 344090 Rostov-on-Don, RussiaInstitute of Nanotechnologies, Electronics and Equipment Engineering, Southern Federal University, Chekhov str. 2, 347928 Taganrog, RussiaThe SiO<sub>2</sub>ZrO<sub>2</sub> composite films were prepared by means of sol-gel technology and characterized by scanning electron microscopy, energy dispersive X-ray (EDX) analysis, and X-ray diffraction. The presence of the stable monoclinic ZrO<sub>2</sub> with an impurity of tetragonal phases is shown. The film surface is characterized by the presence of ZrOCl<sub>2</sub>·6H<sub>2</sub>O or ZrCl(OH)/ZrCl(OH)<sub>2</sub> grains. The crystallite size negligibly depends on the annealing temperature of the film and amount to 10⁻12 nm and 9⁻12 nm for the films thermally treated at 200 °C and 500 °C, respectively. The film’s resistance is rather sensitive to the presence of NO<sub>2</sub> impurities in the air at a low operating temperature (25 °C). Accelerated stability tests of the initial resistance showed high stability and reproducibility of the sensor based on the SiO<sub>2</sub>ZrO<sub>2</sub> film thermally treated at 500 °C.https://www.mdpi.com/2227-9040/6/4/67gas sensorzirconiacomposite filmnitrogen dioxide |
| spellingShingle | Tatiana N. Myasoedova Tatiana S. Mikhailova Galina E. Yalovega Nina K. Plugotarenko Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas Chemosensors gas sensor zirconia composite film nitrogen dioxide |
| title | Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas |
| title_full | Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas |
| title_fullStr | Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas |
| title_full_unstemmed | Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas |
| title_short | Resistive Low-Temperature Sensor Based on the SiO<sub>2</sub>ZrO<sub>2</sub> Film for Detection of High Concentrations of NO<sub>2</sub> Gas |
| title_sort | resistive low temperature sensor based on the sio sub 2 sub zro sub 2 sub film for detection of high concentrations of no sub 2 sub gas |
| topic | gas sensor zirconia composite film nitrogen dioxide |
| url | https://www.mdpi.com/2227-9040/6/4/67 |
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