Polyaniline salt containing dual dopants, pyrelenediimide tetracarboxylic acid, and sulfuric acid: Fluorescence and supercapacitor

Abstract

Storage of energy is considered as the most germane technologies to address the future sustainability. In this study, aniline was chemically oxidized with a controlled concentration of pyrelenediimide tetracarboxylic acid (PDITCA) by ammonium persulfate to polyaniline salt (PANI‐H2SO4‐PDITCA), with nanorods morphologies, having a sensibly decent conductivity of 0.8 S cm−1, wherein H2SO4 was generated from ammonium persulfate during polymerization. PANI‐H2SO4‐PDITCA salt showed bathochromic fluorescence shift (595 nm) compared to PDITCA (546 nm). The Brunauer–Emmett–Teller surface area of the PANI‐H2SO4‐PDITCA‐25 and PANI‐H2SO4‐PDITCA‐50 were 18.3 and 21.4 m2 g−1, respectively. Furthermore, its energy storage efficiency was evaluated by supercapacitor cell configuration. The composite PANI‐H2SO4‐PDITCA‐50 showed capacitance 460 F g−1 at 0.3 A g−1 and large cycle life 85,000 cycles with less retention of 77% to its original capacitance (200 F g−1) even at a better discharge rate of 3.3 A g−1. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45456.

Synthesis of novel fluorescent molecule and its polymeric form with aniline as fluorescent and supercapacitor electrode materials

“…Tuning by controlling the conjugation length of the conjugated polymers, and also the use of different dopants for conjugated polymers increase or decrease the band gaps, which leads to a red or blue shift. Conductive fluorescent‐conjugated polymers have attracted great attention owing to their potential applications such as medical diagnosis, sensors, drug delivery, energy storage, photocatalyst, etc. Among the conducting polymers, polyaniline (PANI) has been considered as the most encouraging material because of its low cost, simple synthesis, high conductivity, great redox reversibility and stability .…”