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 language | English |
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Pages (from-to) | 2594-2599 |
Number of pages | 6 |
Journal | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals |
Volume | 22 |
Issue number | 9 |
State | Published - Sep 2012 |
Keywords
- Electrocatalytic property
- Fe O nanoparticles
- Magnetic property
- Multi-walled carbon nanotube (MWCNT)