Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28690
Title: Facile microwave-assisted synthesis and magnetic and gas sensing properties of Fe3O4 nanoroses
Authors: Ai, Z
Deng, K
Wan, Q
Zhang, L
Lee, S 
Issue Date: 2010
Publisher: American Chemical Society
Source: Journal of physical chemistry C, 2010, v. 114, no. 14, p. 6237-6242 How to cite?
Journal: Journal of physical chemistry C 
Abstract: In this study, we developed a facile microwave-assisted ethylene glycol approach to synthesize Fe3O4 nanoroses in the presence of the PEO-PPO-PEO block copolymer (P123). The resulting products were systematically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Fourier transform infrared absorption spectroscopy (FT-IR). The characterization results revealed that the Fe3O4 nanoroses were formed by P123 directed assembly of nanoparticles under microwave irradiation. Besides size and morphology-dependent magnetic properties, the as-prepared nanocrystalline Fe3O4 nanoroses exhibited high sensitivity and good reversibility for gas-sensing of ethanol vapor at room temperature. Our results suggest these Fe3O4 nanoroses are promising materials for magnetic and sensing applications.
URI: http://hdl.handle.net/10397/28690
ISSN: 1932-7447
EISSN: 1932-7455
DOI: 10.1021/jp910514f
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