Electrochemical synthesis of tunable polypyrrole‐based composites on carbon fabric for wide potential window aqueous supercapacitor

Abstract

Facile one-step electrochemical synthesis of a novel graphitic oxide/polypyrrole/2-acrylamido-2-methyl-1-propanesulfonic acid composite on carbon fabric were described for development of an efficient positive electrode for supercapacitor applications. The 2-acrylamido-2-methyl-1-propanesulfonate monomers behave as dopant in 3D polypyrrole network formed by synergetic coupling with graphitic oxide. Their free acrylic groups interact with each other to form polymer-hydrogel-layer on the external surface that facilitate transport of aqueous electrolyte ions inside of the electrode. The most efficient electrode material was synthesized by tuning dopant concentration at 0.01 M.The full-cell assembled using the composite electrode and graphite counter electrode works at 2.2 V in 3 M NaCl solution that equals to the highest values achieved yet for aqueous supercapacitors. This cell has a capacitance as high as 698.8 F g À1 at 5 mV s À1 and preserves its initial value even after 10 000 continuous CV cycles at 1000 mV s À1 . It also exhibits a high-energy density of 446.1 W h kg À1 at a power density of 366.7 W kg À1 , and it is still 65.2 W h kg À1 at 18.3 kW kg À1 . The asymmetric capacitor with 1 Â 1 cm 2 area successfully lit a red light-emitting diode.

S-Doped Graphene Oxide/N-Doped Graphene Oxide/PANI: A Triple Composite for High-Performance Supercapacitor Applications

“…This showed that the diffusion rate of mobile ions in the 1000th cycle increased compared to the situation in the initial and 2000th cycles. 16,43,74,[78][79][80] The Cdl value, on the other hand, was at the highest level after 1000 cycles, in this case, it showed that the interaction at the electrode/electrolyte interface was the highest and the double layer capacitance is the highest in these cycles. 16,43,74,[81][82][83][84] To determine the charge-discharge behavior of the supercapacitor, galvanostatic charge-discharge tests were performed to PANI/SGO/NGO-3 including supercapacitor at a current density of 0.1 A g −1 between 0 and 1.5 V (Fig.…”

Fabrication of Textile-Based Flexible Supercapacitor with a Textile Dye on Polyaniline-Based Composite Electrode for Enhanced Energy Storage

“…In addition, the functional groups of the AY17 dye enabled the development of redox behaviour of the PANI. In addition, -Cl bonds, N-N bonds in the ring structure, and sulfonate groups (SO3 -) in the AY17 dye structure strengthened the delocalization in the chain structure, supporting the redox behavior of PANI (36). PANI, PANI/AY17, PANI/MWCNTs, and PANI/MWCNT/AY17-3 electrode Nyquist curves fitted to a simple circuit model are shown in Figure 3d (inset in Figure 3d).…”

A Highly Sensitive Non-Enzymatic Sensor for the Determination of Glucose Based on Aniline-2-sulfonic acid-Modified Cu Electrode

“…The fundamental peaks of Cu and O are observed in all the EDS spectrums. The element S in the EDS spectrum of copper, which was also anodized in sulfuric acid electrolyte solution, originated from the electrolyte in the medium (36). Atomic percentage of Cu(30)/ASA(0.02) compared to atomic percentage of Cu (30), it was observed that the percentage of element S increased significantly with the addition of ASA.…”