Abstract
CeO2 nanowires were synthesized using a facile hydrothermal process without any surfactant, and their morphological, structural and gas sensing properties were systematically investigated. The CeO2 nanowires with an average diameter of 12.5 nm had a face-centered cubic fluorite structure and grew along [111] of CeO2. At the room temperature of 25 °C, hydrogen sulfide (H2S) gas sensor based on the CeO2 nanowires showed excellent sensitivity, low detection limit (50 ppb), and short response and recovery time (24 s and 15 s for 50 ppb H2S, respectively).
Original language | English |
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Pages (from-to) | 647-653 |
Journal | Journal of Alloys and Compounds |
Volume | 682 |
Early online date | 6 May 2016 |
DOIs | |
Publication status | Published - 15 Oct 2016 |
Keywords
- CeO2
- Nanowires
- Hydrothermal
- Sensitivity
- Gas sensor