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 publicationJournal articleAcademic researchpeer-review

153 Citations (Scopus)


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 languageEnglish
Pages (from-to)6237-6242
Number of pages6
JournalJournal of Physical Chemistry C
Issue number14
Publication statusPublished - 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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