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Updated: Jul 30, 2026
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Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
Published on: July 2, 2012
Synthesis and characterization of 3D CoPt nanostructures
Vassilios Tzitzios1, Dimitrios Niarchos, Margariti Gjoka
1Institute of Materials Scince, NCSR Demokritos, Agia Paraskevi, 15310 Athens, Greece.
Journal of the American Chemical Society
|October 6, 2005
Summary
Researchers synthesized cobalt platinum (CoPt) nanostructures with a unique polypod shape. These ferromagnetic nanostructures are soluble in organic solvents and exhibit significant magnetic properties at various temperatures.
Area of Science:
- Materials Science
- Nanotechnology
- Magnetism
Background:
- Developing novel magnetic nanostructures is crucial for advanced technological applications.
- Cobalt-platinum (CoPt) alloys are known for their promising magnetic properties.
Purpose of the Study:
- To synthesize and characterize unique polypod-like cobalt platinum (CoPt) nanostructures.
- To investigate the magnetic properties of the synthesized CoPt nanostructures.
Main Methods:
- Thermolytic reduction of platinum acetylacetonate (Pt(acac)2) and cobalt acetate (Co(CH3COO)2) in oleylamine at 250°C.
- Characterization of the resulting nanostructures' morphology and magnetic behavior.
Main Results:
- Successfully synthesized CoPt nanostructures with a polypod-like morphology.
- The nanopolypods demonstrated ferromagnetic behavior.
- Coercive fields of 525 Oe at room temperature and 1200 Oe at 5 K were recorded.
- The nanostructures showed solubility in nonpolar organic solvents.
Conclusions:
- The thermolytic reduction method is effective for creating CoPt nanopolypods.
- These CoPt nanostructures possess tunable magnetic properties suitable for potential applications.
- Solubility in organic solvents enhances their processability for various applications.
