Monodisperse hematite porous nanospheres: synthesis, characterization, and applications for gas sensors |
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| Authors: | Gou Xinglong Wang Guoxiu Park Jinsoo Liu Hao Yang Juan |
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| Affiliation: | School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia. School of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, People's Republic of China. |
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| Abstract: | Monodisperse α-Fe(2)O(3) porous nanospheres with uniform shape and size have been synthesized via a facile template-free route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and Raman spectroscopy were employed to characterize the product, showing the high quality of the as-prepared α-Fe(2)O(3) porous nanospheres. Furthermore, the α-Fe(2)O(3) porous nanospheres can selectively detect ethanol, formaldehyde and acetic acid, with a rapid response and high sensitivity, from a series of flammable and toxic/corrosive gases, indicating their potential applications for high sensitivity gas sensors. |
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