Study and characterization of BaFe12O19/PVDF composites as electrode materials for supercapacitors
Syahrul Humaidi, Muhammadin Hamid, Hadi Wijoyo
Abstract
Supercapacitors are an interesting energy storage technology to be studied. This research uses mesoporous BaFe 12 O 19 particles and synthesized Polyvinylidene fluoride (PVDF) polymers as materials to obtain high performance supercapacitors. Composites were synthesized by facile one-step method using BaFe 12 O 19 which was prepared through co-precipitation chemical method with a calcination process at 200 °C along with PVDF with variations in sample composition of BaFe 12 O 19 , BaFe 12 O 19 20%, BaFe 12 O 19 30%, BaFe 12 O 19 40%, and BaFe 12 O 19 60%. And finally the fabrication of supercapacitor electrodes is carried out. The result of the synthesized material is distributed grains with the average particle size of each sample ranging from 180 to 185 nm. Then it has the highest peak in crystals with a miller index (114). Furthermore, it has the main functional group, Ba–O with a wave number of 1632 cm −1 . Furthermore, the best supercapacitor electrode is BaFe 12 O 19 /PVDF 60% which produces an area of 0.51 mVA where the greater the surface area, the higher the capacitance obtained. Then at BaFe 12 O 19 /PVDF 60% has the highest power density value at 12.36 Wh/kg and the highest power density value at 299.14 Wh/kg. It is expected that the results obtained can be a reference for further electrode material research. • Co-Precipitation method is used to synthesize BaFe 12 O 19 as the Initial Material along with PVDF to Form a composites using a Facile one-step method. • BaFe 12 O 19 /PVDF exhibited good capacitance values ranging from 130 to 250 F/g and high power density with values of 190–300 W/kg. • Supercapacitor electrodes have achieved good capacitance and power density through CV (Cyclic Voltammetry) and GCD (Galvanostatic Charge-Discharge) testing.