Facile microwave-assisted synthesis and magnetic and gas sensing properties of Fe3O4 nanoroses

Zhihui Ai; Kejian Deng; Qianfen Wan; Lizhi Zhang; Shuncheng Lee

doi:10.1021/jp910514f

Facile microwave-assisted synthesis and magnetic and gas sensing properties of Fe₃O₄ nanoroses

Zhihui Ai, Kejian Deng, Qianfen Wan, Lizhi Zhang, Shuncheng Lee

Research output: Journal article publication › Journal article › Academic research › peer-review

155 Citations (Scopus)

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 Fe3O 4 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.

Original language	English
Pages (from-to)	6237-6242
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	114
Issue number	14
DOIs	https://doi.org/10.1021/jp910514f
Publication status	Published - 15 Apr 2010

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Surfaces, Coatings and Films
Physical and Theoretical Chemistry

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10.1021/jp910514f

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title = "Facile microwave-assisted synthesis and magnetic and gas sensing properties of Fe3O4 nanoroses",

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 Fe3O 4 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.",

author = "Zhihui Ai and Kejian Deng and Qianfen Wan and Lizhi Zhang and Shuncheng Lee",

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T1 - Facile microwave-assisted synthesis and magnetic and gas sensing properties of Fe3O4 nanoroses

AU - Ai, Zhihui

AU - Deng, Kejian

AU - Wan, Qianfen

AU - Zhang, Lizhi

AU - Lee, Shuncheng

PY - 2010/4/15

Y1 - 2010/4/15

N2 - 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 Fe3O 4 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.

AB - 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 Fe3O 4 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.

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JF - Journal of Physical Chemistry C

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Facile microwave-assisted synthesis and magnetic and gas sensing properties of Fe₃O₄ nanoroses

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