Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1244670 | Talanta | 2010 | 6 Pages |
Abstract
SnO2 nanowires with an average 0.6 μm in length and about 25 nm in diameter were prepared by a hydrothermal method. The sensors were fabricated using SnO2 nanowires assembled with Pd nanocrystals. The sensing properties of the sensors such as selectivity, response–recovery time and stability were tested at 290 °C. After assembling Pd nanocrystals onto the surface of SnO2 nanowires, the gas sensing properties of the sensors toward H2S were improved. The sensors based on Pd nanoparticle@SnO2 nanowires exhibit high stability owing to stable single crystal structure. The mechanism of promoting sensing properties with Pd nanoparticles is discussed.
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Authors
Hui Li, Jiaqiang Xu, Yongheng Zhu, Xuedong Chen, Qun Xiang,