Advancements in graphene-based nanostructured conducting polymer hybrid composite electrodes for high-performance supercapacitors

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 630, P. 236176 - 236176

Published: Jan. 12, 2025

Language: Английский

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A critical examination of polyaniline and its composite materials: Augmenting supercapacitor performance and diversifying application potential

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 97, P. 112690 - 112690

Published: July 5, 2024

Language: Английский

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Advanced characterization enables a new era of efficient carbon dots electrocatalytic reduction

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216612 - 216612

Published: March 19, 2025

Language: Английский

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Reduced graphene oxide/poly(aniline-co-toluidine blue): Binder-free electrodes for high-performance quasi-solid-state symmetric supercapacitors

Journal of Electroanalytical Chemistry, Journal Year: 2024, Volume and Issue: 956, P. 118097 - 118097

Published: Feb. 5, 2024

Language: Английский

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NiCo MOF@Carbon Quantum Dots Anode with Soot Derived Activated Carbon Cathode: An Efficient Asymmetric Configuration for Sustainable High‐Performance Supercapacitors

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: May 14, 2024

Abstract Metal‐organic frameworks (MOFs) exhibit excellent crystalline, hierarchical porous structures and have garnered great scientific interest as a key material for supercapacitor applications. However, the low conductivity of MOFs poses challenge to fully utilize their potential. Carbon quantum dots (CQDs) prepared from waste edible soybean oil been skillfully incorporated into NiCo MOF enhance supercapacitive performance with its high electronic rapid charge transfer kinetics. Symmetrical, spherical CQDs synthesized using hydrothermal method decorated on nanosheets facile solvothermal technique form MOF@CQDs composite. The new composite retains desirable crystalline structure porosity MOFs, while integration contributes enhanced conductivity, yielding superior specific capacitance 1063.02 Fg −1 (0.5 Ag ). An asymmetric device has fabricated positive electrode oil‐derived activated‐carbon negative electrode. assembled shows remarkable energy power density 30.61 Whkg 0.62 kWkg , respectively. Moreover, demonstrates promising Coulombic efficiency 84.53%, retention 88.61% over 5000 charge–discharge cycles. This work highlights existing challenges potential sustainable solutions in realm emerging storage devices.

Language: Английский

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Hydrotropically Engineered Polyindole-Encapsulated Flower Shape Nanostructured MoS₂ Conductive Framework for Asymmetric Supercapacitors

ACS Applied Engineering Materials, Journal Year: 2024, Volume and Issue: 2(4), P. 880 - 893

Published: March 15, 2024

Hydrotropes are compounds that improve organic–inorganic incompatibility in aqueous solutions. Although organic solvents have been used for a long time different polymerization techniques (such as chemical oxidation, electrospinning, emulsion, and interfacial techniques), they costly environmentally unsustainable. As result, has favored through surfactants order to interaction within. However, mixed morphology, low yield, poor electrochemical performance, increased processing costs one of the major challenges come with use water. Hence, first time, we report hydrotropically engineered facile indole templated over MoS2 nanoflowers (MF) Morphological analysis field emission scanning electron microscopy (FESEM) revealed uniformly decorated polyindole (PIN) petals MF no agglomeration was further corroborated Fourier transform infrared (FTIR) spectroscopy X-ray diffraction (XRD). The charge storage transfer were also investigated using UV–vis technique. In addition this, studies performed cyclic voltammetry, galvanic charging discharging, impedance analysis. enhanced specific capacitance PIN-decorated nanocomposite (PM) found be 240 F/g at 0.5 A/g. Furthermore, stability an impressive 89.3% retention A/g after 3000 cycles. Finally, supplement synthesized PM real applications, material fabrication asymmetric supercapacitor device connected series light emitting diode (LED) augment conductive nature material. power digital stopwatch timer function least 15 min, suggesting ability device. Decisively, this work highlights technique synthesize hydrotrope, tetra n-octyl ammonium bromide (TOAB), can potential candidate electrode range applications.

Language: Английский

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Inside- and Outside-Coated PANI and/or PIN-TiO₂ Nanotubes for Enhanced Photocatalytic Degradation of 4-Nitrophenol in Wastewater

ACS Omega, Journal Year: 2024, Volume and Issue: 9(52), P. 51320 - 51336

Published: Dec. 16, 2024

We present a novel approach for enhancing photocatalytic efficiency by developing polyaniline (PANI) and polyindole (PIN)-coated TiO2 nanotubes (TNT) through combination of chemical oxidation hydrothermal processes. The PANI–PIN coating was systematically applied to both the internal external surfaces enhance active sites optimize pollutant adsorption. dual-coated structure enhances interaction with pollutants, facilitating more efficient degradation 4-nitrophenol (4-NP) when exposed visible light. Thorough characterization X-ray diffraction (XRD), Fourier-transform infrared (FTIR), field emission scanning electron microscopy (FE-SEM), transmission (TEM), energy-dispersive (EDX), N2-physisorption, transient photocurrent, diffuse reflectance spectroscopy (DRS), photoluminescence (PL) validated exceptional structural optical properties composite. PANI/PIN polymer effectively inhibited electron–hole recombination, leading notable enhancement in performance. Among tested composites, formulation consisting 75% PANI 25% PIN demonstrated remarkable performance, achieving rate 99.46% 4-NP only 120 min exposure impressive stems from its extensive surface area (255.3 m2/g), charge separation, minimized band gap (2.77 eV), improved light absorption. Moreover, composite recyclability, preserving catalytic activity across five cycles without any decline These results demonstrate strong potential 75%PPTN as promising photocatalyst environmental remediation.

Language: Английский

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A Review on Recent Developments in Polyindole–Based Nanocomposite Electrode Materials for Supercapacitor Applications

Energy Storage, Journal Year: 2025, Volume and Issue: 7(3)

Published: April 1, 2025

ABSTRACT Polyindole (PIn) has attracted considerable attention as a promising conducting polymer for energy storage devices despite its low electrical conductivity. This interest is attributed to several appealing features, including high redox activity, excellent thermal stability, tendency degradation, and strong compatibility with other components. As result, PIn‐based hybrid composites that include metal oxides, metal–organic frameworks, Mxenes, chalcogenides, and/or carbon materials have been notably recognized electrode supercapacitor applications. review highlights recent advancements in expanding nanocomposite Significant efforts made develop new binary ternary nanocomposites years utilize the beneficial electrochemical properties of composite's Several methods implemented synthesis novel PIn–based fabrication untapped docility PIn, conductivity allotropes, wider charging/discharging potential range oxides. The present adequately compiled briefly discussed scattered literature published during 2018–2024 on recently developed used aims assist developing enhanced supercapacitors.

Language: Английский

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Synthesis and characterization of polyindole-NiO-graphene composite for supercapacitor electrode

Fullerenes Nanotubes and Carbon Nanostructures, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 16

Published: April 25, 2025

Language: Английский

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Thickness-Dependent Charge Storage Dynamics in Polydithienothiophene Thin Films for Next-Generation Hybrid Supercapacitors

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 26, 2025

Language: Английский

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