Review on α-Fe2O3 based negative electrode for high performance supercapacitors

Nithya, V.; Arul, N. Sabari

doi:10.1016/j.jpowsour.2016.07.033

Cited by 324 publications

(136 citation statements)

References 148 publications

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“…10 –14 S cm –1 ) dues to the attenuating the electron transfer while the oxidation reduction reaction occurs on the electrode surface. On the other hand, the size of α‐Fe 2 O 3 crystal particles will grow with the increased charge and discharge cycles …”

Section: Introductionmentioning

confidence: 99%

α‐Fe₂O₃ Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

Chen

2019

Eur J Inorg Chem

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Supercapacitors have drawn the great attention of researchers as green energy storage devices. Until now, serious positive electrodes for asymmetric cells have been developed noticeably. Nevertheless, negative electrode materials have been less explored, especially pseudocapacitive materials. In this review, the impact of the morphology and composition of hematite (α‐Fe2O3) based carbon composite as pure negative electrode are discussed. Besides, the specific capacitance, electrochemical stability, power density, and energy density of those materials are covered. The asymmetric supercapacitor using α‐Fe2O3 based carbon composite electrode shows high energy density, which can compete with batteries.

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Section: Introductionmentioning

confidence: 99%

α‐Fe₂O₃ Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

Chen

2019

Eur J Inorg Chem

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“…Rational hybridization of α‐Fe 2 O 3 with conductive carbon nanostructures, conducting polymers and metal oxides and chalcogenides such as V 2 O 5 , NiO, MnO 2 , NiCo 2 S 4 etc. has been shown to enhance the overall performance . Moreover, the surface engineering of Fe 2 O 3 by creating oxygen vacancy and coating with amorphous layer has been proposed to increase the supercapacitive performance.…”

Section: Introductionmentioning

confidence: 99%

“…has been shown to enhance the overall performance. [8][9][10][11][12] Moreover, the surface engineering of Fe 2 O 3 by creating oxygen vacancy and coating with amorphous layer has been proposed to increase the supercapacitive performance. SnO 2 and Fe 3 O 4 /Si@C have been attempted aiming to achieve high specific capacitance and enhanced energy density.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Supercapacitor Based on Chemically Coupled Hybrid Material of Fe₂O₃‐Fe₃O₄ Heterostructure and Nitrogen‐Doped Reduced Graphene Oxide

2018

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The synthesis of a novel chemically coupled hybrid material based on Fe2O3‐Fe3O4 heterostructure and nitrogen‐doped reduced graphene oxide (N‐rGO) for the development of high performance supercapacitor devices is demonstrated. The chemically coupled hybrid material is synthesized in a one‐pot method under hydrothermal condition, resulting in the formation of crystalline α‐Fe2O3 and poorly crystalline/amorphous Fe3O4. The Fe2O3‐Fe3O4 particles have an average size of 30–50 nm. Chemical integration of Fe2O3‐Fe3O4 with N‐rGO through Fe‐O−C bonds is achieved. The chemical coupling of N‐rGO with pseudocapacitive Fe2O3‐Fe3O4 enhances the overall performance of the composite. Two asymmetric supercapacitor devices using the hybrid material either as positive or negative electrode are fabricated. The supercapacitive behaviour is evaluated in terms of specific capacitance, energy density, power density and cycling stability, showing excellent performance. The asymmetric device based on hybrid material as the positive and activated carbon as the negative electrode, delivers a specific capacitance of 111.95 F g−1 at 0.8 A g−1 with an energy density of 44.93 Wh kg−1. The supercapacitor has excellent cycling stability with a capacitance retention of >92 % even after 10000 extensive charge‐discharge cycles. The all‐solid‐state asymmetric supercapacitor device is fabricated using gel electrolyte. Solid‐state devices connected in series successfully light up 29 LEDs.

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“…With the development of the economy, environmental pressure has been increasing, and it is very urgent to develop a new, low cost, environmentally friendly alternative energy source and energy storage system [1][2][3][4]. Supercapacitors are considered to be a promising candidate material for energy storage because of their advantages of high power density, excellent rate capacitance, long cycle life, and so on [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

One-Step Self-Assembly Synthesis α-Fe2O3 with Carbon-Coated Nanoparticles for Stabilized and Enhanced Supercapacitors Electrode

Yan

Tang

et al. 2017

Energies

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Abstract:A cocoon-like α-Fe 2 O 3 nanocomposite with a novel carbon-coated structure was synthesized via a simple one-step hydrothermal self-assembly method and employed as supercapacitor electrode material. It was observed from electrochemical measurements that the obtained α-Fe 2 O 3 @C electrode showed a good specific capacitance (406.9 Fg −1 at 0.5 Ag −1 ) and excellent cycling stability, with 90.7% specific capacitance retained after 2000 cycles at high current density of 10 Ag −1 . These impressive results, presented here, demonstrated that α-Fe 2 O 3 @C could be a promising alternative material for application in high energy density storage.

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Review on α-Fe2O3 based negative electrode for high performance supercapacitors

Cited by 324 publications

References 148 publications

α‐Fe₂O₃ Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

α‐Fe₂O₃ Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

Asymmetric Supercapacitor Based on Chemically Coupled Hybrid Material of Fe₂O₃‐Fe₃O₄ Heterostructure and Nitrogen‐Doped Reduced Graphene Oxide

One-Step Self-Assembly Synthesis α-Fe2O3 with Carbon-Coated Nanoparticles for Stabilized and Enhanced Supercapacitors Electrode

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Review on α-Fe2O3 based negative electrode for high performance supercapacitors

Cited by 324 publications

References 148 publications

α‐Fe2O3 Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

α‐Fe2O3 Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

Asymmetric Supercapacitor Based on Chemically Coupled Hybrid Material of Fe2O3‐Fe3O4 Heterostructure and Nitrogen‐Doped Reduced Graphene Oxide

One-Step Self-Assembly Synthesis α-Fe2O3 with Carbon-Coated Nanoparticles for Stabilized and Enhanced Supercapacitors Electrode

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α‐Fe₂O₃ Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

α‐Fe₂O₃ Based Carbon Composite as Pure Negative Electrode for Application as Supercapacitor

Asymmetric Supercapacitor Based on Chemically Coupled Hybrid Material of Fe₂O₃‐Fe₃O₄ Heterostructure and Nitrogen‐Doped Reduced Graphene Oxide