Abstract
This work is on the reporting of the synthesis of 1,3-dibutyl-1,2,3-benzotriazolium tetrafluoroborate-doped polyaniline through interfacial polymerization and its material characterizations through FT-IR, XRD, EDS, FESEM, XPS, BET, and TGA and electrochemical property evaluation through CV, EIS, and GCD. The electrode was tested in an ionic liquid electrolyte solution with a 3-electrode setup, which gave an effective potential window from −1.5 to 1.0 V. PANI-DIBUTBTBF4 electrodes were tested on benzotriazolium tetrafluoroborate gel polymer electrolyte using poly(vinylidenefluoride-co-hexafluoropropylene) as host polymer for supercapacitor application through evaluating the electrochemical properties of the fabricated prototype with CV, EIS, and GCD. The SC prototype showed an efficient electrochemical window of 3.5 V. And at 0–3.5 V, it shows a high specific capacitance of 1417.88 F g−1 at a scan rate of 2 mV s−1, and from the galvanostatic charge discharge cycle at a current density of 0.32 A g−1, an energy density of 7.11 mW h g−1 and a power density of 555.06 mW g−1 were observed. The prototype retains a capacitance of 89 % even after 3000 cycles. A single swagelok cell charged at 2 V for 20 min was able to light a red (1.6 V, 20 mA) LED brightly for 5 min, which demonstrated its practical applicability.
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