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- W2014231103 abstract "In this study, undoped and Zn-doped γ-Fe2O3 nanopowders have been prepared using Fe(NO3)3·9H2O and Zn(NO3)2·6H2O as starting materials and lauryl alcohol as anhydrous medium. Thermo-gravimetric analysis (TGA), differential thermal analysis (DTA), X-ray diffraction (XRD) and transmission electron micrograph (TEM) were employed to characterize the products. Sensitivity characteristics of the undoped and Zn-doped γ-Fe2O3 semiconductor gas sensors have been investigated. The results show that both of the undoped and 15 mol% Zn-doped γ-Fe2O3-based gas sensors present good sensitivity and selectivity to acetone and ethanol in presence of CH4, H2 and CO at the operating temperatures of 240 and 270 °C, respectively. After being doped with 15 mol% Zn addition, the γ-Fe2O3-based gas element displays higher sensitivity and selectivity as well as shorter response-recovery time compared with the undoped, suggesting that the promoting effect of ZnO is excellent. So, it seems that the γ-Fe2O3-based gas sensor doped with 15 mol% Zn is expected to be a promising sensor for detecting acetone and ethanol." @default.
- W2014231103 created "2016-06-24" @default.
- W2014231103 creator A5071912092 @default.
- W2014231103 date "2006-12-01" @default.
- W2014231103 modified "2023-09-27" @default.
- W2014231103 title "Synthesis, characterization and gas sensing properties of undoped and Zn-doped γ-Fe2O3-based gas sensors" @default.
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- W2014231103 doi "https://doi.org/10.1016/j.msea.2006.08.013" @default.
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