|dc.description.abstract||This study outlines the synthesis and characterization of electrospun polymer-based
nanofibers with carbon black nanoinclusions for separators in supercapacitor applications.
Supercapacitors, also known as ultracapacitors, are a new generation of storage devices used to
store an electrical charge with a high power density and having a long life cycle compared to
other storage devices. Polyvinylidene fluoride (PVdF)/polyvinylpyrrolidone (PVP) incorporated
with carbon black nanopowders were synthesized via the electrospinning method for
supercapacitor separators. Morphological characterizations of the PVdF/PVP nanofiber
separators by scanning electron microscopy (SEM) show that the nanoscale fiber structures have
a diameter range of 100 to 200 nm. Fourier transform infrared spectroscopy (FTIR), Raman
spectroscopy, and x-ray diffractometry (XRD) were also employed to study the microstructures,
crystalline phases, and chemical bondings. Total capacitance values of PVdF/PVP nanofibers
were enhanced due to the pseudocapacitance effect in the presence of oxygen and nitrogen
functional groups. Test results revealed that the ionic conductivity, dielectric constant, and
wetting properties of electrospun nanofibers were improved. This investigation demonstrated
that the porous nanocomposite fibers have shown increased physical and electrical properties.
The effect of heat treatment and ultraviolet (UV) irradiation exposure on the PVdF/PVP
nanofibers demonstrated better dielectric constant values and surface wettability.
Overall, this study showed that enhanced physical, electrical, and thermal properties are
useful for supercapacitor separator applications. Supercapacitors will become one of the most
favorable storage devices in the future, and separators are one of their major components.||