Hierarchical hollow cages of Mn-Co layered double hydroxide as supercapacitor electrode materials

Wu, Nanshi; Low, Jingxiang; Liu, Tao; Yu, Jiaguo; Cao, Shaowen

doi:10.1016/j.apsusc.2017.03.297

Cited by 113 publications

(20 citation statements)

References 58 publications

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“…Metal-based electrode materials have been very popular in the last few years for electrochemical capacitors; Ru, Ir, Mn, Co, Fe, Pt, among others, have been used as electrode materials in capacitors. [13][14][15][16][17] The molecular symmetry is very important for the determination of the capacity of the cells in electrode materials, because the local electrostatic interactions with the ions in electrolytes have a crucial role in the formation of the electric fields between the two electrodes in the capacitor cells. When the voltage applied to the cell, the interactions of the electrode with the cationic and anionic ions in the electrolytes lead to weak bonding on the structure.…”

Section: Introductionmentioning

confidence: 99%

Investigation of hybrid‐capacitor properties of ruthenium complexes

et al. 2019

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Summary Ru complexes were successfully produced, and their structural properties were investigated using FTIR, Raman, and single crystal XRD patterns. The HOMO, LUMO, Eg, and electronic surface potential (ESP) values of the molecules were calculated by a Gaussian program. The complexes were used for producing hybrid capacitor cells as electrode materials. According to electrochemical analysis, complex 2 showed the best CV graph between −1 V and +1 V and had the highest current value and hysteresis area when compared with the other complexes. The performance analysis and the capacity fade of the cells were investigated. The first capacity values of the complexes were 57.5, 22.1, 16.9, and 0.0021 F/g for complexes 1, 2, 3, and 4, respectively. The capacitive mechanism of the cells as relates to molecular interactions was also investigated. We suggested that the ESP values of the molecules were directly related to the capacitive performance of the cells. In addition to this, the best cycling performance was obtained for complex 2, which has the lowest Eg value among the complexes. We speculate that the charged regions on the complex materials have a crucial role in the increasing the capacitance of the cells.

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Section: Introductionmentioning

confidence: 99%

Investigation of hybrid‐capacitor properties of ruthenium complexes

et al. 2019

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“…It consists of various materials such as polymers, metals, ceramics and glass [2]. A large number of supercapacitors have carbon-based reinforcement due to their high performance and high power density [8]. Research studies have been carried out on copper oxide obtained by chemical deposition [9], copper-based reinforcements deposited on steel in ionic liquids [10], nickel oxides reinforcements also obtained by chemical deposition [11] or sol-gel or electrostatic sputter deposition [1].…”

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confidence: 99%

The Influence of the Deposition Parameters on the Properties of Ni-Cu Deposition

Barbu¹,

Ciobotaru²,

Benga³

et al. 2019

Rev. Chim.

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This paper discusses the properties of some Ni-Cu deposits obtained on a steel substrate, which may be employed as supercapacitor plates. In order to achieve plates with different properties, one has varied the parameters of the deposition process such as deposition time, current density and temperature. Scanning electron microscopy and dispersive energy spectrometry were employed for the determination of the structure and composition of the Ni-Cu deposits. The plates with the Ni-Cu deposits were used to create supercapacitors and their capacitance values were also determined.

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“…Supercapacitors are devices used for energy storage and release at demand intended to replace the conventional batteries [1][2][3][4][5]. The research in energy storage field is focused on improving the existing energy devices in terms of storage capacity, easy charging and extended lifetime [6].…”

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confidence: 99%

SEM, EDS and Electrical Capacitance Study on Electrodeposited Ni-Cu Layers

Barbu¹,

Ciobotaru²,

Cojocaru³

et al. 2019

Rev. Chim.

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Nickel-Copper metallic layers were deposited onto a steel substrate by using the electrochemical method. The morphology and the chemical composition of the deposited layers were studied by scanning electron microscopy. The electrical capacitance was measured on a functional supercapacitor made of two Ni-Cu deposited layers and a Nafion 117� membrane hydrated with distilled water, which served as a dielectric separator.

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Hierarchical hollow cages of Mn-Co layered double hydroxide as supercapacitor electrode materials

Cited by 113 publications

References 58 publications

Investigation of hybrid‐capacitor properties of ruthenium complexes

Investigation of hybrid‐capacitor properties of ruthenium complexes

The Influence of the Deposition Parameters on the Properties of Ni-Cu Deposition

SEM, EDS and Electrical Capacitance Study on Electrodeposited Ni-Cu Layers

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