Ag:Y2O3–SnO2 core-shell-based nanostructured sensor for achieving high ammonia sensing performance
Owing to the requirement for high-performing and low-cost gas sensors, Ag:Y 2 O 3 –SnO 2 core-shell nanocomposites were fabricated for high-efficiency gas sensing applications. Thick film sensor of Ag:Y 2 O 3 –SnO 2 was prepared through a simple slurry coating method and tested towards various volat...
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| Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2022-11, Vol.128 (11), Article 999 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Owing to the requirement for high-performing and low-cost gas sensors, Ag:Y
2
O
3
–SnO
2
core-shell nanocomposites were fabricated for high-efficiency gas sensing applications. Thick film sensor of Ag:Y
2
O
3
–SnO
2
was prepared through a simple slurry coating method and tested towards various volatile organic compounds (VOCs). Ag:Y
2
O
3
–SnO
2
sensor has exhibited superior sensing performance and good stability at room temperature when introduced to low concentrations (1 ppm) of ammonia. Ag:Y
2
O
3
–SnO
2
sensor has shown a rapid response time (2 s) and recovery time (8 s) as well as increased sensitivity (̴̴ 1496) towards 100 ppm of ammonia at room temperature. HR-TEM results show the core–shell structure of Ag:Y
2
O
3
–SnO
2
with sizes around 6–18 nm. The sensing performance of the Ag:Y
2
O
3
–SnO
2
sensor is shown extensively high compared to the pure Y
2
O
3
, SnO
2
and Y
2
O
3
–SnO
2
sensors. |
|---|---|
| ISSN: | 0947-8396 1432-0630 |
| DOI: | 10.1007/s00339-022-06142-3 |