Monodisperse hematite porous nanospheres: synthesis, characterization, and applications for gas sensors

Authors

Xing L. Gou, University of WollongongFollow
Guoxiu Wang, University of WollongongFollow
Jinsoo Park, University of WollongongFollow
Hao Liu, University of WollongongFollow
Juan Yang, University of Wollongong

RIS ID

26217

Publication Details

Gou, X. L., Wang, G., Park, J., Liu, H. and Yang, J. (2008). Monodisperse hematite porous nanospheres: synthesis, characterization, and applications for gas sensors. Nanotechnology, 19 (12), 125606-1-125606-7.

Abstract

Monodisperse alpha-Fe2O3 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 alpha-Fe2O3 porous nanospheres. Furthermore, the alpha-Fe2O3 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.