Magnetic and electrocatalytic properties of multi-walled carbon nanotube/Fe 3O 4 composites

Cui Ling Hou, Tie Hu Li, Ting Kai Zhao, Wei Zhang, Le Hao Liu, Wen Juan Zhang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Multi-walled carbon nanotube (MWCNT)/Fe 3O 4 composites were prepared via a chemical synthesis-hydrothermal treatment method. The microstructure, magnetic and electrocatalytic properties of MWCNT/Fe 3O 4 were investigated using transmission electron microscope (TEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM) and cyclic voltammograms method. The results indicate that the surfaces of MWCNTs are enwrapped with magnetic Fe 3O 4 nanoparticles, and the as-prepared MWCNT/Fe 3O 4 composites (62.5% Fe 3O 4) with saturation magnetization (M s) of 35.89 A·m 2/kg and coercive force (H c) of 0.19 A/m have good paramagnetism at room temperature. The glass-carbon (GC) electrode modified with MWCNT/Fe 3O 4 has good electrocatalytic response towards H 2O 2, and the redox overpotential increases and the oxidation peak current enhances.

Original languageEnglish
Pages (from-to)2594-2599
Number of pages6
JournalZhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
Volume22
Issue number9
StatePublished - Sep 2012

Keywords

  • Electrocatalytic property
  • Fe O nanoparticles
  • Magnetic property
  • Multi-walled carbon nanotube (MWCNT)

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