Journal
NEW JOURNAL OF CHEMISTRY
Volume 42, Issue 16, Pages 13612-13618Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nj01923a
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Funding
- National Natural Science Foundation of China [11474124]
- Jilin University [2017110]
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SnO2 nanoparticles are successfully synthesized using a facile solvothermal method without any templates or surfactants at a relatively low temperature of 100 degrees C following an annealing process. As-synthesized SnO2 samples exhibit a uniform nanoparticle morphology with a diameter around 9 nm. The gas sensing properties of the as-fabricated sensor based on SnO2 nanoparticles are carefully investigated and the results exhibit a high response, fast response/recovery speeds, good sensitivity, a low detection limit and superior repeatability for the volatile organic compound formaldehyde at a relatively low operating temperature. The formaldehyde sensing mechanism is discussed in detail and a possible growth mechanism is proposed.
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