Polyindole coated NiCo2S4composites as high-performance supercapacitor electrode materials

Autor: Otluca, Hayriye Ece, Budak, Özlem, Bilici, Ali, Koca, Atıf
Zdroj: Jouranl of Energy Storage; 20240101, Issue: Preprints
Abstrakt: NiCo2S4(NCS) and Polyindole (PIn) are two effective electrode materials used in energy storage systems. In this study, NCS@PIn hybrid structures were synthesized for the first time and the effects of PIn amount on the supercapacitor performance of NCS were evaluated. For this purpose, first, PIn hollow microspheres were obtained by oxidative polymerization reaction. Then, NCS was produced by one-step hydrothermal synthesis approach and NCS@PIn composites in three different composition ratios were prepared by a simple ultrasonic mixing process. NCS exhibited a specific areal capacitance value of 834.6 F g−1at a current density of 1 A g−1. The electrochemical performance of NCS was improved via hybridization process. After composing NCS with 5 % PIn (NCS@PIn-5), specific capacitance value reached up to 1442.8 F g−1which was higher than those of PIn, NCS and the other NCS@PIn hybrid electrodes. In addition, NCS@PIn-5 coated electrode exhibited a charged retention of 94.7 % after 5000 cycles.
Databáze: Supplemental Index