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Journal ArticleDOI

Creating oxygen-vacancies in MoO3-x nanobelts toward high volumetric energy-density asymmetric supercapacitors with long lifespan

TLDR
In this article, an asymmetric supercapacitor with the GC/MoO3-x and GC/MnO2 nanocomposites as anode and cathode, respectively, exhibits an ultrahigh energy of 150'Wh'kg−1, corresponding to an impressive volumetric energy density of 319'Wh´L−1.
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This article is published in Nano Energy.The article was published on 2019-04-01. It has received 235 citations till now. The article focuses on the topics: Supercapacitor.

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Co9S8-Ni3S2/CuMn2O4-NiMn2O4 and MnFe2O4-ZnFe2O4/graphene as binder-free cathode and anode materials for high energy density supercapacitors

TL;DR: In this paper, the authors developed a multicomponent integration of hierarchical Co9S8-Ni3S2 nanoparticles anchored on CuMn2O4-NiMn 2O4 nanosheet arrays (CoNi-S NPs/Cu-Ni-Mn-O NSAs) and rhombus-like shaped MnFe2O 4-ZnFe-O/G-ink nanosheets, which were effectively applied as a superior binder free cathode and anode electrodes for ASCs.
References
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Journal ArticleDOI

Materials for electrochemical capacitors

TL;DR: This work has shown that combination of pseudo-capacitive nanomaterials, including oxides, nitrides and polymers, with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries.
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Conductive two-dimensional titanium carbide ‘clay’ with high volumetric capacitance

TL;DR: This capacitance report reports a method of producing two-dimensional titanium carbide ‘clay’ using a solution of lithium fluoride and hydrochloric acid that offers a much faster route to film production as well as the avoidance of handling hazardous concentrated hydrofluoric acid.
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Charge Storage Mechanism of MnO2 Electrode Used in Aqueous Electrochemical Capacitor

TL;DR: The charge storage mechanism in MnO2 electrode, used in aqueous electrolyte, was investigated by cyclic voltammetry and X-ray photoelectron spectroscopy as discussed by the authors.
Journal ArticleDOI

Advanced Asymmetric Supercapacitors Based on Ni(OH)2/Graphene and Porous Graphene Electrodes with High Energy Density

TL;DR: In this paper, a high-voltage asymmetric supercapacitor is successfully fabricated using Ni(OH)2/graphene and porous graphene as the positive and negative electrodes, respectively.
Journal ArticleDOI

Asymmetric Supercapacitors Based on Graphene/MnO2 and Activated Carbon Nanofiber Electrodes with High Power and Energy Density

TL;DR: An asymmetric supercapacitor with high energy density has been developed successfully using graphene/MnO2 composite as positive electrode and activated carbon nanofibers (ACN) as negative electrode in a neutral aqueous Na2SO4 electrolyte as mentioned in this paper.
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