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- W4212775160 abstract "Detecting some appropriate target gases through the optimization of material structure is still applicable to some old sensing materials. In this work, we showed that hollow tin oxide (SnO 2 ) nanotubes (NTs) exhibited a remarkable sensing performance for nitric oxide (NO) at 160 °C. The sensing materials were prepared by direct annealing of electrospun precursor nanofibers, and hollow NTs can be obtained at an appropriate heating rate of 6 °C/min. Given the large surface area of hollow SnO 2 NTs, their sensing performance is better than that of solid SnO 2 NTs. The response of hollow SnO 2 NTs is approximately 33.3 upon exposure to 500 ppb of NO at 160 °C. The hollow SnO 2 NTs also exhibit good repeatability, long-term stability, and excellent selectivity. These remarkable sensing properties indicate that conventional SnO 2 still has great practical applications because of the fine design of the material structure and proper control of working conditions. • Hollow SnO 2 nanotubes can be prepared by the calcination of precursor nanofibers with a suitable heating rate. • Hollow SnO 2 nanotubes possess higher surface area and more surface-adsorbed oxygen species than solid nanotubes. • Hollow SnO 2 nanotubes can detect NO gas down to 10 ppb. • Hollow SnO 2 nanotubes show good reproducibility, long-term stability, and excellent selectivity." @default.
- W4212775160 created "2022-02-24" @default.
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- W4212775160 date "2022-05-01" @default.
- W4212775160 modified "2023-09-30" @default.
- W4212775160 title "Chemiresistive gas sensor based on electrospun hollow SnO2 nanotubes for detecting NO at the ppb level" @default.
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- W4212775160 doi "https://doi.org/10.1016/j.vacuum.2022.110961" @default.
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