Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 252, Issue -, Pages 757-763Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.06.040
Keywords
alpha-MoO3; Nanolamella; Gas sensor
Funding
- National Natural Science Foundation of China [11574110]
- Project of Science and Technology Development Plan of Jilin Province [20160204013GX]
- Postdoctoral Science Foundation of China [2016M600231]
- State Key Laboratory on Integrated Optoelectronics and State Grid Corporation of China [SGRIDGKJ[2015]959]
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In this work, alpha-MoO3 and Ni-doped alpha-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 alpha-MoO3 had superior formaldehyde sensing capability compared with pure alpha-MoO3. The maximum response value approached 41-100 ppm formaldehyde at 255 degrees C, which was about 4.1 times bigger than that of pure alpha-MoO3. In addition, the 5 mol% Ni-doped alpha-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 alpha-MoO3 was also discussed. (C) 2017 Elsevier B.V. All rights reserved.
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