Fabrication and investigation of graphene‐loaded triiron tetraoxide/silicone‐rubber electromagnetic shielding composites based on static magnetic‐field–induced orientation

Polymer Composites, Journal Year: 2024, Volume and Issue: 45(7), P. 6588 - 6605

Published: Feb. 15, 2024

Abstract Graphene‐loaded triiron tetraoxide/silicone‐rubber composites containing highly loaded graphene‐loaded Fe 3 O 4 (Fe @RGO) particles were fabricated using static magnetic field‐induced alignment. The @RGO characterized through Fourier transform infrared, x‐ray diffraction, SEM, and XPS analyses. Subsequently, the influence of added material strength field on alignment distribution filler examined a synergistic combination SEM Raman spectroscopy. electrical conductivity electromagnetic shielding properties assessed. increased with increasing addition, 25 wt% mixture had fastest curing rate maximum torque, continued increase in addition led to occurrence many defects. Concurrently, progressively enhances augmentation strength. synthesized at 180 mT exhibit most substantial alignment, facilitating establishment effective conductive pathways. This results notable enhancement effectiveness, approximately 400% greater than that pure silicone rubber around 40% higher non‐aligned composites. approach introduces novel concept for shaping structural design flexible materials. Highlights Highly was prepared by self‐assembly. continuous phase structure oriented Fully promotes formation reduced SER 13% SEA 67%.

Language: Английский

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Synthesis and electrochemical testing of novel doped polyaniline and biomass‐derived carbon‐based composite for supercapacitors

Polymers for Advanced Technologies, Journal Year: 2024, Volume and Issue: 35(4)

Published: April 1, 2024

Abstract This work reports the synthesis and testing of doped polyaniline (PANI) Pisum sativum derived activated carbon (PSAC) based composite as efficient electrode material for supercapacitors. The structure, morphology, elemental analysis, surface area materials were studied using x‐ray diffraction Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive x‐rays, Raman Brunauer–Emmett–Teller analysis. electrochemical performance was investigated by deposition it on two different substrates named stainless steel (SS) stainless‐steel mesh (SS mesh). PSAC/PANI exhibited a specific capacitance 446 517 F g −1 SS respectively, at scan rate 5 mV s . showed higher cyclic stability with 91% retention after 10,000 cycles 2 A It delivered 89 101 W h kg power 5000 , respectively.

Language: Английский

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Production and applications of lead (II) oxide/poly(aniline-co-thiophene) composite materials for enhanced supercapacitor performance

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(14)

Published: May 1, 2024

Abstract In this work, a novel approach was employed to prepare and utilize lead (II) oxide poly(aniline-co-thiophene) (PANI-co-PTh) composite materials as electrode for supercapacitors, marking the first instance of such utilization in literature. PANI-co-PTh synthesized bulk through chemical polymerization, conducting polymers underwent comprehensive spectroscopic, physical, microscopic characterization. Subsequently, material, incorporating (PbO) composite, asymmetric-type supercapacitors. The main results indicate clear relationship between surface area their specific capacitance. Notably, PANI-co-PTh-6, possessing highest area, demonstrated Particle size distribution PANI-co-PTh-6 were determined 130 μm 64.76 m 2 g −1 , respectively. PbO@PANI-co-PTh-3 configuration exhibited capacitance, reaching 294 Fg at 10 mVs scan rate. Remarkably, during long-cycle experiments, system capacity retention 70.69% after 1000 cycles. inaugural application supercapacitor showcased notable capacitance values, establishing substantial foundation future research endeavors field.

Language: Английский

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Self-assembled monolayers of reduced graphene oxide for robust 3D-printed supercapacitors

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: July 1, 2024

Abstract Herein, additive manufacturing, which is extremely promising in different sectors, has been adopted the electrical energy storage field to fabricate efficient materials for supercapacitor applications. In particular, Al 2 O 3 -, steel-, and Cu-based microparticles have used realization of 3D self-assembling covered with reduced graphene oxide be processed through manufacturing. Functionalization particles amino groups a subsequent "self-assembly" step oxide, was contextually partially rGO, carried out. To further improve conductivity AM processability, composites were coated polyaniline-dodecylbenzene sulfonic acid complex blended PLA. Afterward, they extruded form filaments, printed fused deposition modeling technique, assembled into symmetrical solid-state devices. Electrochemical tests showed maximum mass capacitance 163 F/g, density 15 Wh/Kg at 10 A/g, as well good durability (85% retention within 5000 cycles) proving effectiveness preparation efficiency as-manufactured composites.

Language: Английский

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Enhanced electrochemical performance of La2S3/N-rGO/PANI nanocomposites as an efficient electrode material for supercapacitor applications

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(15)

Published: May 1, 2024

Language: Английский

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Facile one-pot synthesis of porous NiCoP@reduced graphene oxide composite as active electrode material for high energy density asymmetric supercapacitor

Chemical Physics Letters, Journal Year: 2023, Volume and Issue: 826, P. 140635 - 140635

Published: June 2, 2023

Language: Английский

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Recycled magnetic materials (BaFe12O19 and Fe3O4) for the enhancement of capacitance/energy-density in graphene supercapacitors

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 72, P. 108733 - 108733

Published: Aug. 19, 2023

Language: Английский

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PANI-grafted radially porous MnO2 for supercapacitor applications

Journal of Solid State Electrochemistry, Journal Year: 2024, Volume and Issue: 28(8), P. 2593 - 2603

Published: Jan. 31, 2024

Language: Английский

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Influence of Nitrogen Doping and Pre‐Carbonization on the Performance of Lignin‐Derived Activated Carbon for Supercapacitor Applications

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(2)

Published: Jan. 1, 2025

Abstract Nanostructured carbons are widely used as active materials for supercapacitor applications owing to their high specific surface area and electrical conductivity. Biomass waste‐derived can be sustainably produced. In this work, highly porous activated carbon was prepared from lignin waste applications, the effects of nitrogen doping a pre‐carbonization treatment on final performance were investigated. Particularly, carbonized (ACL) (AL) samples with or without step, respectively, doping. Nitrogen found decrease capacitance loss critical oxygen‐containing functional groups, which provide pseudocapacitance. Meanwhile, use greatly improved materials. Sorptometry analysis indicated that ACL AL have areas 3174 2289 m 2 g −1 , respectively. achieved 306.4 F 292.1 in 1 mol L KOH H SO 4 Furthermore, contribution improve maintain presence groups identified beneficial towards improving pseudocapacitance properties

Language: Английский

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Impact of Boehmite and Gibbsite on the supercapacitor performances of Polypyrrole: γ-AlO(OH)/PPy/CF and γ-Al(OH)3/PPy/CF flexible and wearable nanocomposites

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178879 - 178879

Published: Jan. 1, 2025

Language: Английский

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