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Polymer Nanocomposite Containing Palladium Nanoparticles: Synthesis, Characterization, and Properties
Gleb Yurkov1,2, Yury Koksharov3, Alexander Fionov4
1N.N. Semenov Federal Research Center of Chemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia.
Polymers
|September 23, 2022
Summary
This study details the creation of palladium-based nanocomposites in polyethylene. The research highlights how palladium nanoparticle size and properties are tunable by adjusting metal content, offering potential for new material applications.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Composite nanomaterials offer unique properties for advanced applications.
- Palladium nanoparticles embedded in polymer matrices are of significant interest.
Purpose of the Study:
- To synthesize and characterize palladium nanoparticles within a high-pressure polyethylene matrix.
- To investigate the influence of palladium content on nanoparticle size, structure, and electrophysical properties.
Main Methods:
- Thermal decomposition of palladium diacetate.
- Characterization using transmission electron microscopy, X-ray diffraction, X-ray absorption spectroscopy, and electron paramagnetic resonance (EPR).
Main Results:
- Palladium nanoparticles (average size 6-7 nm) were successfully embedded in polyethylene.
- Nanoparticle size and palladium coordination number decreased with lower metal content.
- Electrophysical properties were found to be dependent on filler concentration.
- EPR spectra revealed distinct paramagnetic centers on and within palladium particles.
Conclusions:
- The study demonstrates tunable properties of palladium-polyethylene nanocomposites.
- Control over palladium content allows for modification of nanoparticle characteristics.
- These findings suggest potential for developing novel palladium-based materials.
