A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte
Abstract NOx is one of dangerous air pollutants, and the demands for reliable sensors to detect NOx are extremely urgent recently. Conventional fluorite-phase YSZ used for NOx sensor requires higher operating temperature to obtain desirable oxygen ion conductivity. In this work, perovskite-phase Na0...
Guardado en:
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2017
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/304036fe03234e0897f5d23bec89a584 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:304036fe03234e0897f5d23bec89a584 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:304036fe03234e0897f5d23bec89a5842021-12-02T11:52:16ZA Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte10.1038/s41598-017-05169-42045-2322https://doaj.org/article/304036fe03234e0897f5d23bec89a5842017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05169-4https://doaj.org/toc/2045-2322Abstract NOx is one of dangerous air pollutants, and the demands for reliable sensors to detect NOx are extremely urgent recently. Conventional fluorite-phase YSZ used for NOx sensor requires higher operating temperature to obtain desirable oxygen ion conductivity. In this work, perovskite-phase Na0.5Bi0.5TiO3 (NBT) oxygen conductor was chosen as the solid electrolyte to fabricate a novel highly sensitive NO2 sensor with CuO as the sensing electrode and Pt as reference electrode. Na dopped Na0.5Bi0.5TiO3 greatly improved the sensing performance of this sensor. The optimal sensor based on Na0.51Bi0.50TiO3−δ exhibited good response-recovery characteristics to NO2 and the response current values were almost linear to NO2 concentrations in the range of 50–500 ppm at 400–600 °C. The response current value towards NO2 reached maximum 11.23 μA at 575 °C and the value on NO2 is much higher than other gases (CH4, C2H4, C3H6, C3H8, CO), indicating good selectivity for detecting NO2. The response signals of the sensor were slightly affected by coexistent O2 varying from 2 to 21 vol% at 575 °C. The response current value decreased only 4.9% over 2 months, exhibiting the potential application in motor vehicles.Yihong XiaoChufan ZhangXu ZhangGuohui CaiYong ZhengYing ZhengFulan ZhongLilong JiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Yihong Xiao Chufan Zhang Xu Zhang Guohui Cai Yong Zheng Ying Zheng Fulan Zhong Lilong Jiang A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte |
| description |
Abstract NOx is one of dangerous air pollutants, and the demands for reliable sensors to detect NOx are extremely urgent recently. Conventional fluorite-phase YSZ used for NOx sensor requires higher operating temperature to obtain desirable oxygen ion conductivity. In this work, perovskite-phase Na0.5Bi0.5TiO3 (NBT) oxygen conductor was chosen as the solid electrolyte to fabricate a novel highly sensitive NO2 sensor with CuO as the sensing electrode and Pt as reference electrode. Na dopped Na0.5Bi0.5TiO3 greatly improved the sensing performance of this sensor. The optimal sensor based on Na0.51Bi0.50TiO3−δ exhibited good response-recovery characteristics to NO2 and the response current values were almost linear to NO2 concentrations in the range of 50–500 ppm at 400–600 °C. The response current value towards NO2 reached maximum 11.23 μA at 575 °C and the value on NO2 is much higher than other gases (CH4, C2H4, C3H6, C3H8, CO), indicating good selectivity for detecting NO2. The response signals of the sensor were slightly affected by coexistent O2 varying from 2 to 21 vol% at 575 °C. The response current value decreased only 4.9% over 2 months, exhibiting the potential application in motor vehicles. |
| format |
article |
| author |
Yihong Xiao Chufan Zhang Xu Zhang Guohui Cai Yong Zheng Ying Zheng Fulan Zhong Lilong Jiang |
| author_facet |
Yihong Xiao Chufan Zhang Xu Zhang Guohui Cai Yong Zheng Ying Zheng Fulan Zhong Lilong Jiang |
| author_sort |
Yihong Xiao |
| title |
A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte |
| title_short |
A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte |
| title_full |
A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte |
| title_fullStr |
A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte |
| title_full_unstemmed |
A Novel Highly Sensitive NO2 Sensor Based on Perovskite Na0.5+xBi0.5TiO3−δ Electrolyte |
| title_sort |
novel highly sensitive no2 sensor based on perovskite na0.5+xbi0.5tio3−δ electrolyte |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/304036fe03234e0897f5d23bec89a584 |
| work_keys_str_mv |
AT yihongxiao anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT chufanzhang anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT xuzhang anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT guohuicai anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT yongzheng anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT yingzheng anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT fulanzhong anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT lilongjiang anovelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT yihongxiao novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT chufanzhang novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT xuzhang novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT guohuicai novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT yongzheng novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT yingzheng novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT fulanzhong novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte AT lilongjiang novelhighlysensitiveno2sensorbasedonperovskitena05xbi05tio3delectrolyte |
| _version_ |
1718395094403383296 |