High-Performance Asymmetric Supercapacitor Based on Ternary MnO2-Polyaniline-Reduced Graphene Oxide Quantum Dots Nanocomposite Electrode

Kazemi, Sayed Habib; Aghdam, Siamak Abdollahi

doi:10.1007/s11664-019-07318-z

Cited by 15 publications

(3 citation statements)

References 52 publications

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“…The electrochemical performance of the fabricated cell described above suggests that the synthesized material is a potential material for real-time energy storage devices. Figure compares the energy density of the PANI/GO-Azo//AC asymmetric supercapacitor reported in this work with the other supercapacitors reported in the literature. − The cycling stability and Coulombic efficiency of the fabricated cell were also studied and are depicted in Figure e,f. The results exhibited a capacitance retention of 76.5% with a Coulombic efficiency of 96.5% even after 5000 cycles.…”

Section: Resultsmentioning

confidence: 84%

Azopyridine as a Linker Molecule in Polyaniline-Grafted Graphene Oxide Nanocomposite Electrodes for Asymmetric Supercapacitors

Baby,

Sunny,

Vigneshwaran

et al. 2023

ACS Appl. Energy Mater.

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Electronically conducting polymers (ECPs)/carbon nanomaterialbased polyaniline electrodes have received great interest in the field of supercapacitors due to their high specific capacitance, good electronic conductivity, good mechanical strength, good chemical and electrochemical stabilities, etc. Among the various available ECPs, they have received much importance due to their excellent electrochemical performances. Herein, we report a facile synthesis of a PANI-grafted graphene oxide (GO)-azopyridine (Azo) (PANI/GO-Azo) nanocomposite and use it as electrodes for fabricating supercapacitors. The azo units present in the nanocomposite act as a spacer between PANI and GO. The interfacial polymerization method is adopted for the synthesis of PANI/GO-Azo nanocomposites. The PANI/ GO-Azo nanocomposite electrode exhibits a gravimetric capacitance of 426 F g −1 at a current density of 0.25 A g −1 in 1 M H 2 SO 4 (aqueous) electrolyte. The electrode possesses good cycling stability of more than 5000 cycles with a Coulombic efficiency of 98.5%. An asymmetric supercapacitor fabricated with PANI/GO-Azo as the positive electrode and activated carbon as the negative electrode delivers an energy density of 12.45 W h kg −1 with a power density of 274.9 W kg −1 . This study proclaims that the PANI/GO-Azo nanocomposite electrode is highly promising for next-generation supercapacitors.

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Section: Resultsmentioning

confidence: 84%

Azopyridine as a Linker Molecule in Polyaniline-Grafted Graphene Oxide Nanocomposite Electrodes for Asymmetric Supercapacitors

Baby,

Sunny,

Vigneshwaran

et al. 2023

ACS Appl. Energy Mater.

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“…Capacitance (Fg À 1 ) Power Density (kW kg À 1) Retention (%)/Cycle MnO 2 /PANI/rGO QD [151] 423 640 85/200 PANI/S,N : G QDs [152] 2524 2250 100/1000 PVA-GQD/PEDOT [153] 291.86 984.4 98/1000 3D NiCoO2-PPy [154] 1037 465 89/7000…”

Section: Applications In Supercapacitors Electrode Materialsmentioning

confidence: 99%

Applications of Nanomaterials for Enhanced Performance, and Sustainability in Energy Storage Devices: A Review

Goyal,

Singh,

Bhatnagar

2024

ChemistrySelect

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The development of next generation energy storage devices with low self‐discharge rate, high energy density and low cost are the requirements to meet the future and environmental needs. In recent years, energy demand has risen in tandem with population growth and technological advancement. Energy resources are finite. Thus, solving economic difficulties and ensuring their continuous and efficient consumption will require new research and technologies. The use of nanomaterials in energy storage devices improves the performance of the devices with its morphologies and properties like high surface area, tunable pore size, good ionic and conductive properties. It also plays a critical role by improving the long lifespan, safety, and cyclicity of electrodes materials. This short review brings out the main approaches about the comprehensive analysis of the recent advances and future prospect of nanomaterials for energy storage technology and its applications. It discusses the classification of nanomaterials i. e., carbon‐based materials, metal‐oxides, nanowires, conductive polymers, etc. and the environmental impact in the energy storage technologies of nanomaterials. They also make it possible to occupy all the intercalation sites in the particle volume, which results in quick ion diffusion and high specific capacities. Because of these characteristics, electrodes made of nanomaterials can withstand high currents, making them a potential option for storing energy at high power and energy density. The related market study predicts that the worldwide market for nanotechnology in the energy sector will expand from an estimated $ 139.7 million in 2020 to $ 384.8 million in 2030, representing a CAGR (compound annual growth rate) of 10.7 percent from 2021 to 2030. Research indicates that energy storage and conversion systems using nanomaterials are more efficient. Carbon‐based materials, metal‐oxides, nanowires, conductive polymers, etc. added to phase change materials were studied for their high charge and discharge rates. Prior research indicated that several material properties, including size, concentration, form, and phase transition, significantly impacted the storage efficiency of composites. This review article also summarises and discusses the current state of knowledge regarding effective nanomaterials for its role in energy storage and conversion. Finally, possible uses for nanomaterials in new energy storage technologies, including wearable and flexible electronics, grid‐scale energy storage, and electrochemical energy conversion with different applications is discussed.

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“…Shayeh et al synthesized PANI/rGO/Au nanocomposite on glassy carbon which showed higher specific capacitance60 . Kazemi et al fabricated an asymmetric supercapacitor based on ternary nanocomposite of manganese dioxide-reduced graphene oxide quantum dot-polyaniline (MGP) which demonstrated a high specific capacitance of 423 F g -1 at a current density of 5.7 A g -1 .Capacitance retention was almost 85% of the initial capacitance value after 2000 chargedischarge cycles61 . According to Tayel et al PANI can be integrated with conducting carbon materials for the greater improvement of stability, electrical conductivity and redox behavior to prepared G-PANI composite which has high porosity and large surface area.…”

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confidence: 99%

Conducting Polymer /Graphene composite electrodes for supercapacitors

2021

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Graphene, as a new emerging carbonaceous material has gained a lot of attention in the past decade due to its extraordinary intrinsic properties. Conducting polymers exhibit high potential in supercapacitors because of their advantages over other electrode materials including good conductivity, flexibility, ease of synthesis etc. But both materials have some drawbacks when they merely used as electrodes. Therefore, research community has move towards composite electrodes to avoid disadvantageous realities and accomplish the best performance. This review summarizes recent development of graphene and conducting polymer (Polypyrrole and Polyaniline) based composite electrodes for supercapacitors and the comparison of their performance.

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High-Performance Asymmetric Supercapacitor Based on Ternary MnO2-Polyaniline-Reduced Graphene Oxide Quantum Dots Nanocomposite Electrode

Cited by 15 publications

References 52 publications

Azopyridine as a Linker Molecule in Polyaniline-Grafted Graphene Oxide Nanocomposite Electrodes for Asymmetric Supercapacitors

Azopyridine as a Linker Molecule in Polyaniline-Grafted Graphene Oxide Nanocomposite Electrodes for Asymmetric Supercapacitors

Applications of Nanomaterials for Enhanced Performance, and Sustainability in Energy Storage Devices: A Review

Conducting Polymer /Graphene composite electrodes for supercapacitors

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