Spherical-Like Ball-by-Ball Architecture of Ni-Co-Zn-S Electrodes for Electrochemical Energy Storage Application in Supercapacitors

Vignesh, V.; Navamathavan, R.

doi:10.1149/2.1121713jes

Cited by 19 publications

(4 citation statements)

References 37 publications

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“…Organic inorganic zinc compounds have attracted much interest due to their diverse applications, such as in the field of electrocatalysis [3], chemical gas sensors [4], energy storage [5] and catalytic properties [6,7]. A variety of organic inorganic hybrids containing zinc complexes have been demonstrated [8,9].…”

Section: Commentmentioning

confidence: 99%

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C₁₄H₂₄Cl₂ZnN₄

2019

Zeitschrift Für Kristallographie - New Crystal Structures

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C14H 24 Cl 2 ZnN4, orthorhombic, Pbca (no. 61), a = 13.3238(11) Å, b = 15.9366(13) Å, c = 18.0943(16) Å, V = 3842.1(6) Å 3 , Z = 8, Rgt(F) = 0.0393, wR ref (F 2 ) = 0.1053, T = 298(2) K. CCDC no.: 1887677Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters. Source of materialIn a typical experiment, N-butyl imidazole (0.744 g; 6 mmol), and zinc chloride (0.136 g; 1 mmol), vanadiumoxy acetylacetonate (0.132 g; 0.5 mmol) and 5 mL water were added successively in a 25 mL round-bottom flask. The mixture was heated to 60°C for 60 min, resulting in a blue-turquoise coloured solution. The resulting mixture was filtrated and the filtrate stood by slow evaporation for five days. Crystals of the title complex were obtained.Yield: 74% (base on Zn element), and elemental analysis: calc. for C14H 24

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Section: Commentmentioning

confidence: 99%

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C₁₄H₂₄Cl₂ZnN₄

2019

Zeitschrift Für Kristallographie - New Crystal Structures

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“…ZCS nano-artichokes were synthesized by Yang et al using a facile oil phase approach and then coated onto the nickel foam, and achieved a specific capacitance of 486.2 F g -1 at 2.0 A g -1 [23]. Vignesh et al prepared Ni-Co-Zn-S microspheres through a facile hydrothermal method and then coated them onto the nickel foam to obtain the electrodes, which exhibited a maximum specific capacitance of 825.0 F g -1 at 1 A g -1 [24]. Clearly, when these ZCS electrode materials are prepared and then coated onto the current collector to form the electrodes, their specific capacitance values need to be significantly improved.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the quantity of electrode materials directly grown on the nickel foam is usually very limited, which is unsuitable for large-scale industrial applications [25]. So far, there are some studies to prepare ZCS electrode materials, including nanosheets, nanoflowers, microspheres and nano-artichokes [21][22][23][24], however, the ZCS nanoparticles have not been reported in literature as the electrode materials for SCs.…”

Section: Introductionmentioning

confidence: 99%

Zinc cobalt sulfide nanoparticles as high performance electrode material for asymmetric supercapacitor

Sun

et al. 2019

Electrochimica Acta

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Zinc cobalt sulfide (ZCS) is a promising and high performance electrode material for pseudocapacitors due to its good electrical conductivity, abundant active sites and rich valence states. In this work, zinc cobalt oxide (ZCO) nanoparticles are firstly synthesized via a hydrothermal method assisted by hexadecyltrimethyl ammonium bromide (CTAB), and then transformed into zinc cobalt sulfide nanoparticles (ZCS NPs) using a facile sulfuration process. The average diameter of ZCS NPs is estimated to be about 15 nm, which is beneficial for Faradaic redox reactions in energy storage process due to their numerous active surfaces. The ZCS NPs are then coated onto a nickel foam to form the working electrode of supercapacitors. Because the ZCS electrode has lower series and charge transfer resistance, and also higher ion diffusion rate than that of the ZCO electrode, it achieves a large specific capacitance of 1269.1 F g -1 at 0.5 A g -1 in 2 M KOH electrolyte, which is four times more than that of the ZCO electrode (e.g., 295.8 F g -1 at 0.5 A g -1 ). In addition, an asymmetric supercapacitor using the ZCS NPs as the positive electrode and activated carbon as the negative electrode is assembled, which delivers a high energy density of 45.4 Wh kg -1 at a power density of 805.0 W kg -1 , with an excellent cycling stability (91.6 % retention of the initial capacitance over 5000 cycles).

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“…Material development, based on appropriate integration with structural integrity, is an important responsibility for the applicant's applications, rising towards a new limit. 1 Nowadays, a variety of emerging device technologies in the field of healthcare, energy, and environmental, are promptly rising to encounter the current and future demands and tackle environmental challenges. [2][3][4][5] To overcome this issue, it is possible through the material development with suitable properties, based on the requirement.…”

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confidence: 99%

Directionally Controlled Growth of Fe-Anchored Carbon Fibers by the Electrospinning Process

Vignesh¹,

Nirmala

Srinivasan³

et al. 2021

ECS J. Solid State Sci. Technol.

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The utility fit, structurally controlled development of down-scaled products is a great boon to new upcoming device functions for various applications. Fe nanoparticle decorated carbon fibers created through electrospinning offer advancement opportunities due to their capacity for tunable porosity with a high surface to the volume aspect ratio, which enables efficient accessibility, resulting in better performance in device applications. Here, we report on the synthesis of Fe nanoparticle anchored polymer (PVA) fibers created using an electrospinning process followed by a carbonization process was performed at different temperatures of 500 °C, 600 °C, and 700 °C under an inert (Ar) atmosphere. An annealing process allows the formation of pristine Fe ions rather than oxide formation, and the polymer transforms into graphitate by abnormal decomposition in PVA, without changing its fibrous morphology. The fibrous structure with uniform distribution of Fe nanoparticles product was confirmed by scanning electron microscopy, field-effect scanning electron microscopy, scanning tunneling electron microscopy, and tunneling electron microscopy images.

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Spherical-Like Ball-by-Ball Architecture of Ni-Co-Zn-S Electrodes for Electrochemical Energy Storage Application in Supercapacitors

Cited by 19 publications

References 37 publications

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C₁₄H₂₄Cl₂ZnN₄

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C₁₄H₂₄Cl₂ZnN₄

Zinc cobalt sulfide nanoparticles as high performance electrode material for asymmetric supercapacitor

Directionally Controlled Growth of Fe-Anchored Carbon Fibers by the Electrospinning Process

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Spherical-Like Ball-by-Ball Architecture of Ni-Co-Zn-S Electrodes for Electrochemical Energy Storage Application in Supercapacitors

Cited by 19 publications

References 37 publications

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C14H24Cl2ZnN4

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C14H24Cl2ZnN4

Zinc cobalt sulfide nanoparticles as high performance electrode material for asymmetric supercapacitor

Directionally Controlled Growth of Fe-Anchored Carbon Fibers by the Electrospinning Process

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The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C₁₄H₂₄Cl₂ZnN₄

The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C₁₄H₂₄Cl₂ZnN₄