Hydrothermal Synthesis and Gas Sensing Properties of α-Fe2O3 Hollow Microspheres and Nanorods

Abstract:

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α-Fe2O3 hollow microspheres and nanorods were synthesized via a hydrothermal method using glucose and ethylenediaminetetraacetic acid (EDTA) as morphology controlled agents, followed by calcination at 500 °C for 4 h in air. The crystal structures of products were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results show that the hollow microspheres with diameters of 1-2 μm are consist of nanoparticles (80-100 nm), and the nanorods have a structure in the diameter of 80-100 nm and length about 1 μm. Furthermore, the α-Fe2O3 hollow microspheres show higher gas response to ethanol than that of nanorods and nanoparticles.

Info:

Periodical:

Advanced Materials Research (Volumes 343-344)

Edited by:

David Wang

Pages:

177-180

DOI:

10.4028/www.scientific.net/AMR.343-344.177

Citation:

X. L. Ye et al., "Hydrothermal Synthesis and Gas Sensing Properties of α-Fe2O3 Hollow Microspheres and Nanorods", Advanced Materials Research, Vols. 343-344, pp. 177-180, 2012

Online since:

September 2011

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Price:

$35.00

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