کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5009129 | 1462039 | 2017 | 7 صفحه PDF | دانلود رایگان |

- Ni-doped α-MoO3 nanolamella with different Ni concentrations was synthesized.
- Influence on formaldehyde sensing properties caused by Ni doping was studied.
- Ni-doped α-MoO3 highly improved formaldehyde sensing properties.
In this work, α-MoO3 and Ni-doped α-MoO3 were synthesized through a facile solvothermal method and various techniques were employed to study the phase and morphological properties. The gas sensing measurements showed that 5 mol% Ni-doped α-MoO3 had superior formaldehyde sensing capability compared with pure α-MoO3. The maximum response value approached 41-100 ppm formaldehyde at 255 °C, which was about 4.1 times bigger than that of pure α-MoO3. In addition, the 5 mol% Ni-doped α-MoO3 gas sensor was also found to have lower detection limit and better selectivity to formaldehyde. The mechanism involved in gas sensing performance of Ni-doped α-MoO3 was also discussed.
Journal: Sensors and Actuators B: Chemical - Volume 252, November 2017, Pages 757-763