| dc.description.abstract | Supercapacitors are an interesting energy storage technology to be studied.
This research uses mesoporous BaFe12O19 particles and Polyvinylidene fluoride
(PVDF) polymers that have been synthesized as materials to obtain supercapacitors
that have high performance. The synthesis carried out using the co-precipitation
chemical method with a calcination process at 200oC has a variation in the
composition of BaFe12O19-PVDF material with a mass ratio of barium chloride:
natural iron sand: PVDF, namely 6:4:0, 4:4:2, 3:4:3, 2:4:4, 0:4:6. Then
characterization was carried out including: morphological properties and particle
size using scanning electron microscopy (SEM), and energy diffraction X-ray (EDX).
Furthermore, to determine the structure of the material using X-ray diffraction (XRD)
and Fourier-transform infrared (FT-IR). The electrochemical properties of the
material were investigated using cyclic voltammetry (CV) and galvanostatic
charge/discharge (GCD). The result of the fabricated material is that the grains have
been distributed with the average particle size of each sample ranging from 180-185
nm. Then has the highest peak in crystals with miller index (114) and (311).
Furthermore, it has the main functional groups, namely Ba-O and C = C with wave
numbers 1640.00 cm-1 and 1632.00 cm-1. And finally has the highest specific
capacitance value of 1.77 F/g with an area of 0.51255 mVA, then the highest energy
density at a value of 8.608 Wh/kg and the highest power density value at a value of
195.940 W/kg. The optimum composition obtained is 2:4:4 which can be applied as a
candidate electrode for supercapacitors. | en_US |
