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In an article recently published in the open-access journal Materials, researchers presented the dielectric characteristics of hybrid polyethylene composites comprising carbon nanotubes and cobalt nanoparticles.
Polymer-based nanocomposites with hybrid fillers are expected to possess high energy storage density taking advantage of different morphologies and electric properties of the nanofillers. In this article, hybrid semi-conductive nanofillers with MoS2 two-dimensional (2-D) nanosheets and ZnO zero-dimensional (0-D) nanoparticles in different ratios were fabricated by the wet chemical route and ultrasonic mixing. The ZnO nanoparticles have a good distribution on MoS2 nanosheets confirmed by TEM, XRD, and XPS results. The P(VDF-CTFE-DB)/ZnO@MoS2 composites with different weight percent of fillers w...
In a study published in the journal Energies, a group of researchers from Poland recently analyzed the effect of graphite and shungite on the properties of dielectric elastomer-based materials such as polydimethylsiloxane. They analyzed the structures, mechanical properties, thermal stability, and dielectric properties of the resulting composites.
Abstract Sodium niobate (NaNbO )‐based dielectrics have received much attention for energy storage applications due to their low‐cost, lightweight, and nontoxic nature. The field‐induced metastable ferroelectric phase in NaNbO ‐based dielectrics, however, leads to a large hysteresis of the polarization–electric field (P–E) loops and hence deteriorate the energy storage performance. In this study, the hysteresis was successfully reduced by introducing Bi and Ti into A‐site and B‐site of NaNbO , respectively. MnO addition was added to further increase the ceramic density and ...