High performance and remarkable cyclic stability of a nanostructured RGO–CNT-WO<sub>3</sub> supercapacitor electrode

Nasreen, Farah; Anwar, Abdul Waheed; Majeed, Abdul; Ahmad, Muhammad; Ilyas, Usman; Ahmad, Furqan

doi:10.1039/d1ra08413e

Cited by 22 publications

(4 citation statements)

References 41 publications

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“…In comparison, the rGO electrode exhibits a capacitance retention of approximately 91.99% under the same scan rate conditions. These higher values of capacitance retention signify that a material excels at preserving its capacitance, a quality often sought after in applications related to energy storage or supercapacitors [47].…”

Section: Electrochemical and Bio-sensor Studiesmentioning

confidence: 99%

Antioxidant, Electrochemical, Photocatalysis and Sensor Studies of rGO Incorporated MgO Nanocomposite

et al. 2023

Preprint

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The main objective of this study is to develop the reduced graphene oxide (rGO) with magnesium oxide (MgO) nanoparticles. The obtained nanocomposite was characterized by using XRD, SEM and EDAX techniques. The developed rGO/MgO nanocomposite was utilized for antioxidant property. The Antioxidant activity of rGO, MgO and rGO/MgO nanocomposite were estimated using DPPH assay shows a greater antioxidant activity 83 % and lower IC50 about 2609.23 mg/mL for rGO/MgO nanocomposite. The cyclic voltammetry (CV) analysis was performed using carbon paste electrode in 1M KOH electrolyte. From CV studies, electrochemical reversibility at scan rate 10 mV/s (ER= 2.0810−6), proton diffusion co-efficient (D= 1.765 × 10−4) and capacitance (𝐶𝑠𝑝 = 173𝐹𝑔−1) has been improved significantly. The photodegradation of malachite green was carried out for rGO, MgO and rGO/MgO nanocomposite shows a greater degradation about 93% and follows 1st order kinetics. Further, sensing property of the synthesized material by utilizing Ascorbic acid (BS-A), Resorcinol (BS-R) and Uric acid (BS-U) exhibit a good sensing in the oxidation region.

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Section: Electrochemical and Bio-sensor Studiesmentioning

confidence: 99%

Antioxidant, Electrochemical, Photocatalysis and Sensor Studies of rGO Incorporated MgO Nanocomposite

et al. 2023

Preprint

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“…They observed that the SC of the supercapacitor was 440 F/g with 98% coulombic efficiency after 5000 cycles. A study investigated a supercapacitor constructed by the tungsten trioxide (WO 3 )/CNT/RGO electrode and demonstrated the SC of 691.38 F/g at 5 mV/s [71]. Ngo et al [72] fabricated polydopamine/CNT/graphene oxide nanocomposites as the flexible symmetric electrode for the supercapacitor and demonstrated the SC of 217.4 F/g.…”

Section: Introductionmentioning

confidence: 99%

CNTs-Supercapacitors: A Review of Electrode Nanocomposites Based on CNTs, Graphene, Metals, and Polymers

et al. 2023

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Carbon nanotubes (CNTs), due to mechanical, electrical, and surface area properties and their ability to adapt to different nanocomposite structures, are very substantial in supercapacitor electrodes. In this review, we have summarized high-performance, flexible, and symmetry CNT supercapacitors based on the CNTs/graphene, CNTs/metal, and CNTs/polymer electrodes. To present recent developments in CNT supercapacitors, we discuss the performance of supercapacitors based on electrical properties such as specific capacitance (SC), power and energy densities, and capacitance retention (CR). The comparison of supercapacitor nanocomposite electrodes and their results are reported for future researchers.

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“…Vanadium pentoxide (V 2 O 5 ), as a layered transition metal oxide, possesses a unique valence electron structure and is rich in a variety of compound states (þ5, þ4, þ3, þ2), enabling it to exhibit a high specific capacitance and the potential to enhance the capacitance properties of WO 3 when combined. [47][48][49][50] In this study, we employed a simple hydrothermal-calcination method to incorporate a V 2 O 5 precursor solution into presynthesized WO 3 nanorods. By investigating the influence of the precursor (V 2 O 5 ) concentration on the morphology and performance of the composite, we identified the optimal concentration and successfully prepared a 3D network-like WO 3 /V 2 O 5 /CC composite material.…”

Section: Introductionmentioning

confidence: 99%

“…Vanadium pentoxide (V 2 O 5 ), as a layered transition metal oxide, possesses a unique valence electron structure and is rich in a variety of compound states (+5, +4, +3, +2), enabling it to exhibit a high specific capacitance and the potential to enhance the capacitance properties of WO 3 when combined. [ 47–50 ]…”

Section: Introductionmentioning

confidence: 99%

WO₃–V₂O₅–Carbon Fiber Self‐Supported Composite Electrodes for High‐Performance Supercapacitors

Hu,

Liu,

Wang

et al. 2023

Energy Tech

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The design of high‐energy‐density device electrodes has garnered significant attention but remains a challenging task. This study proposes an effective strategy for constructing a ternary composite material (WO3/V2O5/CC‐n, n = 1, 2, 3). Utilizing V2O5 as a precursor, a highly efficient electrode (WO3/V2O5/CC‐2) with a 3D nanowire structure is designed. The results demonstrate that the WO3/V2O5/CC‐2 electrode exhibits enhanced capacitive performance with a specific capacity (495.6 F g−1 at 1 A g−1) and remarkable electrochemical stability even after 5000 cycles. Furthermore, kinetics analysis reveals that the charge stored on the electrode is primarily attributed to surface capacitive effects and diffusion‐controlled insertion processes. This facile preparation method of the WO3/V2O5/CC‐2 electrode derived from WO3 and V2O5 holds excellent potential for constructing new‐generation electrochemical energy‐storage devices with superb capacitance performance.

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High performance and remarkable cyclic stability of a nanostructured RGO–CNT-WO₃ supercapacitor electrode

Abstract: One of the most pressing concerns in today's power networks is ensuring that consumers (both home and industrial) have access to efficient and long-lasting economic energy.

Cited by 22 publications

References 41 publications

Antioxidant, Electrochemical, Photocatalysis and Sensor Studies of rGO Incorporated MgO Nanocomposite

Antioxidant, Electrochemical, Photocatalysis and Sensor Studies of rGO Incorporated MgO Nanocomposite

CNTs-Supercapacitors: A Review of Electrode Nanocomposites Based on CNTs, Graphene, Metals, and Polymers

WO₃–V₂O₅–Carbon Fiber Self‐Supported Composite Electrodes for High‐Performance Supercapacitors

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High performance and remarkable cyclic stability of a nanostructured RGO–CNT-WO3 supercapacitor electrode

Abstract: One of the most pressing concerns in today's power networks is ensuring that consumers (both home and industrial) have access to efficient and long-lasting economic energy.

Cited by 22 publications

References 41 publications

Antioxidant, Electrochemical, Photocatalysis and Sensor Studies of rGO Incorporated MgO Nanocomposite

Antioxidant, Electrochemical, Photocatalysis and Sensor Studies of rGO Incorporated MgO Nanocomposite

CNTs-Supercapacitors: A Review of Electrode Nanocomposites Based on CNTs, Graphene, Metals, and Polymers

WO3–V2O5–Carbon Fiber Self‐Supported Composite Electrodes for High‐Performance Supercapacitors

Contact Info

Product

Resources

About

High performance and remarkable cyclic stability of a nanostructured RGO–CNT-WO₃ supercapacitor electrode

WO₃–V₂O₅–Carbon Fiber Self‐Supported Composite Electrodes for High‐Performance Supercapacitors