Research Article
Fast-LPG Sensors at Room Temperature by α-Fe2O3/CNT Nanocomposite Thin Films
Table 1
Nanocomposite materials-based LPG sensors operating at room temperature.
| | Years [ref.] | Materials | LPG (vol.%) | (%) | /@90% |
| | 2011 [1] | Ferric oxide | 2.0 | 5100.0 | ~120 s/~150 s | | 2013 [4] | Ppy/TiO2 | 0.10 | 55.0 | ~112 s/~130 s | | 2013 [11] | PTh/SnO2 hybrid | 0.5–2.5 | ~9.5–56.2 | 196–94 s/182–466 s | | 2014 [42] | CuO-SnO2 | 0.5 | ~4200.0 | ~180 s/~200 s | | 2014 [10] | PANI/ɤ-Fe2O3 | 0.02 | ~140 | ~60 s/N/A | | 2014 [43] | ZnFe2O4 | 5.0 | ~1600.0 | ~120 s/~150 s | | 2014 [44] | Cu2ZnSnS4 | 0.12 | ~20.0 | ~70 s/~40 s | | 2016 [45] | Cu2ZnSnS4 | 0.1 | ~60.0 | ~40 s/~40 s | | 2017 [46] | BaTiO3 | 0.5 | 50 | ~30 s/~60 s | | This study | As-grown CNTs | 5.0 | ~0.25 | ~290 s/N/A | | | Purified CNTs | 5.0 | ~0.25 | ~20 s/45 s | | | α-Fe2O3/CNTs | 0.1–5.0 | ~1.0–6.0 | ~25–13 s/~30–80 s |
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