High Energy Density Nanocomposites Based on Surface-Modified BaTiO 3 and a Ferroelectric Polymer
Georgia Institute of Technology · United States Naval Research Laboratory · +1 more institution
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Abstract
The dielectric permittivity and electric breakdown strength of nanocomposites comprising poly(vinylidene fluoride-co-hexafluoro propylene) and phosphonic acid surface-modified BaTiO(3) nanoparticles have been investigated as a function of the volume fraction of nanoparticles. The mode of binding of pentafluorobenzylphosphonic acid on the BaTiO(3) particles was investigated using infrared and (31)P solid-state nuclear magnetic resonance spectroscopy, and the phosphonic acid was found to form well ordered, tightly bound monolayers. The effective permittivity of nanocomposites with low volume fractions (
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9Topics & keywords
Topics
Keywords
- Materials science
- Permittivity
- Nanocomposite
- Relative permittivity
- Nanoparticle
- Volume fraction
- Dielectric
- Composite material
UN Sustainable Development Goals
- Affordable and clean energy
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