Electrochemical performance of FeNbO4/rGO as an electrode material for supercapacitor application

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: 147, P. 111268 - 111268

Published: June 5, 2024

Language: Английский

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Stoichiometrically Optimized Electrochromic Complex [V₂O_2+ξ(OH)_3‐ξ] Based Electrode: Prototype Supercapacitor with Multicolor Indicator

Small, Journal Year: 2024, Volume and Issue: 20(32)

Published: March 18, 2024

Abstract The systematic structure modification of metal oxides is becoming more attractive, and effective strategies for structural tunning are highly desirable improving their practical color‐modulating energy storage performances. Here, the ability a stoichiometrically tuned oxide‐hydroxide complex porous vanadium oxide, namely [V 2 O 2+ξ (OH) 3‐ξ ] ξ = 0:3 multifunctional electrochromic supercapacitor application demonstrated. Theoretically, pre‐optimized oxide synthesized using simple wet chemical etching technique in its optimized stoichiometry with 0, providing electroactive surface sites. electrode shows high charge property 610 Fg −1 at 1A g , as well good properties color contrast 70% 50% 428 640 nm wavelengths, faster switching, coloration efficiency. When assembled solid‐state symmetric device, it exhibits an ultrahigh power density 1066 mWcm −2 246 mWhcm specific capacitance 290 mFcm 0.2 mAcm . A prepared prototype device displays red when fully charged, green half blue discharged. clear evidence optimizing performance by stoichiometrical tuning presented along demonstrating 25 cm large real‐life applications.

Language: Английский

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Synthesis of FeVO₄ nanoparticles using sol‐gel auto‐combustion method and their application in supercapacitors

Energy Storage, Journal Year: 2024, Volume and Issue: 6(5)

Published: July 4, 2024

Abstract Iron vanadate (FeVO 4 ) nanoparticles (NPs) were synthesized using the sol‐gel auto‐combustion technique, yielding a triclinic nanostructure as revealed by X‐ray diffraction (XRD). The average size, crystalline structure, and morphology of analyzed field emission scanning electron microscopy (FESEM). Energy‐dispersive spectroscopy (EDX) was used to investigate elemental content purity FeVO NPs. Fourier transform infrared (FTIR) confirmed surface stretching frequency Using doctor blade, produced NPs applied stainless steel (SS) substrate. fabricated electrode examined GCD, EIS, CV techniques. absorption spectra exhibited strong absorbance in visible range, with band gap 3.43 eV. Additionally, showed supercapacitor properties, maximum specific capacitance 1151.05 F/g 1 M KOH electrolyte at scan rate 5 mV/s. These results indicate that prepared is promising for application due their excellent electrochemical performance.

Language: Английский

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Vanadium Oxide-Based Electrode Materials for Advanced Supercapacitors: A Review

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(12), P. 10494 - 10516

Published: June 6, 2024

In the direction of novel energy materials, one area intense research focus is creating new electrode materials to enhance electrochemical performance supercapacitors. Compared other metal elements, vanadium has numerous valence states (+2 +5). Materials based on oxide will show various characteristics, which makes choosing material for a supercapacitor quite convenient. They still have lot room increase their might be very useful in large-scale commercial applications. This review focuses effective ways improving metal- and oxide-based materials. To develop unique structures with more REDOX active sites, synthesis approaches been used, including carbon-based composites addition transition cations. Future prospects difficulties are addressed along existing clarify how advances these can improve use

Language: Английский

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One-step synthesis of g-C3N4/TiVCTx MXene electrodes for lithium-ion batteries and supercapacitors

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154449 - 154449

Published: July 31, 2024

Language: Английский

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High mass loading of sulfonated holey graphene/PANI in−situ growing on carbon cloth for superior areal capacitance of flexible supercapacitor

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 43, P. 102514 - 102514

Published: Jan. 1, 2025

Language: Английский

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A giant enhancement of capacitance in graphene supercapacitors by introducing on their electrodes recycled hydroxyapatite from bovine bone

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112725 - 112725

Published: March 1, 2025

Language: Английский

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Flexible, Patternable Graphene/CNT-Coated Heaters with Nylon/Clay Lamination and Strong Adhesion

International Journal of Precision Engineering and Manufacturing-Green Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 4, 2025

Language: Английский

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Electrospun carbon/iron–vanadium oxide nanofibers for high energy density supercapacitors

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156413 - 156413

Published: Oct. 1, 2024

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Augmenting energy storage capacity of aqueous-electrolyte-based supercapacitors: Integrating multivalent vanadium into freestanding ZnO/carbon nanofiber electrodes

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 99, P. 113204 - 113204

Published: Aug. 13, 2024

Language: Английский

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