Journal
VACUUM
Volume 184, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2020.109939
Keywords
Semiconductors; Sensors; MoO3 nanorods; SnS@MoO3 hollow nanotubes; TEA
Funding
- National Natural Science Foundation of China [11964035]
- applied research and development project
- innovation team project of Gansu Academy of Sciences [2019JK-11, 2020CX005-02]
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The heterostructured SnS@MoO3 composite material, synthesized by hydrothermal method, showed higher response rate, better selectivity, and humidity resistance properties when detecting Triethylamine compared to MoO3.
To overcome the obstacle of triangular prism-like MoO3 nanorods (MoO3) gas sensor including low response, poor selectivity and a heavy influence of humidity to Triethylamine (TEA), heterostructured tin sulfide (SnS) composited with MoO3 hollow nanotubes (SnS@MoO3) were synthesised by a facilely hydrothermal method. Its morphology and structure were charactered through different technologies. The result indicated that the sensor based on SnS@MoO3 exhibited higher response (73.46%), shorter response/recovery time (8.1/4.5 s), excellently selectivity and anti-humidity properties than MoO3 to 50 ppm TEA at 250 degrees C. Thus, the SnS@MoO3 is a promising material for detecting TEA.
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