Electrodeposited molybdenum selenide sheets on nickel foam as a binder-free electrode for supercapacitor application

Mariappan, Vimal Kumar; Krishnamoorthy, Karthikeyan; Pazhamalai, Parthiban; Sahoo, Surjit; Kim, Sang‐Jae

doi:10.1016/j.electacta.2018.01.075

Cited by 90 publications

(37 citation statements)

References 50 publications

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“…On the other hand, the used Ti substrates guarantee sufficient reactivity for the ALD reactions presented here, which e. g. pure silicon could not easily offer. In the spectrum of Se 3d core level (Figure f), the position of Mo(IV)−Se with E B (3d 5/2 )=54.6 eV and E B (3d 3/2 )=55.5 eV agree with previous works reported indicating 2H MoSe 2 …”

Section: Methodssupporting

confidence: 91%

“…These results agree well with the MoSe 2 deposited by other techniques. [22][23][24][25][26][27] Conversely, the six-membered cyclic selenide 2 showed poor reaction rate and negligible amount of material was deposited. This is most likely due to its higher chemical stability and thus resulting lower reactivity under the given deposition conditions -flow reactor mode with time-limited contact between the precursor injected in the chamber and the chemisorbed counterpart and kinetically limited reaction Surface characterization using Raman spectroscopy and Xray photoelectron spectroscopy (XPS) was carried out to confirm the chemical composition of the deposited MoSe 2 .…”

mentioning

confidence: 99%

“…In the spectrum of Se 3d core level (Figure 3f), the position of Mo(IV)À Se with E B (3d 5/2 ) = 54.6 eV and E B (3d 3/2 ) = 55.5 eV agree with previous works reported indicating 2H MoSe 2 . [24,28,29] A straightforward synthesis of cyclic silylselenides has been developed. Compared to the limited portfolio of Se precursors, the prepared selenides significantly extent the available selenium compounds for ALD.…”

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confidence: 99%

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Cyclic Silylselenides: Convenient Selenium Precursors for Atomic Layer Deposition

et al. 2020

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Three cyclic silylselenides were prepared in a straightforward manner. Property tuning has been achieved by varying the ring size and the number of embedded selenium atoms. All silylselenides possess improved resistance towards moisture and oxidation as well as high thermal robustness and sufficient volatility with almost zero residues. The six‐membered diselenide proved to be particularly superior Se precursors for atomic layer deposition and allowed facile preparation of MoSe2 layers. Their structure and composition have been investigated by Raman and X‐ray photoelectron spectroscopy as well as scanning electron microscopy revealing vertically aligned flaky shaped nanosheets.

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Section: Methodssupporting

confidence: 91%

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confidence: 99%

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confidence: 99%

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Cyclic Silylselenides: Convenient Selenium Precursors for Atomic Layer Deposition

et al. 2020

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“…And we also calculated the relation between the specific capacity and the scan rate of the electrode (Figure f). [7a] A high specific capacity of about 235.6 and 247.9 mAh g –1 was obtained from CV analysis measured at a scan rate of 5 mV s –1 for the CuCo 2 S 4 and CuCo 2 S 4 /CC electrodes, respectively.…”

Section: Resultssupporting

confidence: 61%

“…When compared with the oxides, the metal sulfides have higher electrical conductivity and excellent rate performance . Many metal sulfides, including MoSe 2 , Ni 3 S 2 , NiS, NiS 2 /ZnS, CoS have been reported as electrode materials. Compared to the single‐sulfides, bimetallic sulfides have richer faradaic redox reactions and higher electronic conductivity .…”

Section: Introductionmentioning

confidence: 99%

Self‐Supporting CuCo₂S₄ Microspheres for High‐Performance Flexible Asymmetric Solid‐State Supercapacitors

et al. 2018

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Copper cobalt sulfide (CuCo 2 S 4 ) microspheres were grown directly on a carbon cloth (CC) substrate via a facile hydrothermal synthesis route. The possible formation mechanism of flower-like CuCo 2 S 4 microspheres was also discussed. The resultant composite was explored as a binder-free electrode for supercapacitors, delivering a high capacitance of 166.67 mAh g -1 at 1 A g -1 , excellent rate capability (108.33 mAh g -1 at 10 A g -1 ) and pronounced long-term cyclability up to 3000 cycles. A flexible solid state supercapacitor was also assembled with binderfree electrode materials and exhibits an energy density of [a]

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Impact of Acetate‐Based Hydrogel Electrolyte on Electrical Performance and Stability of Eco‐Friendly Supercapacitors

Landi,

La Notte,

Granata

et al. 2023

ChemElectroChem

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The electrochemical characteristics and stability of hydrogel‐based environmentally friendly supercapacitors employing sodium acetate as salt have been investigated. To ensure the overall sustainability of the devices, chitosan (a biomaterial from renewable resources) and activated carbon (derived from coconut shells) have been used as a binder and filler within the electrodes, respectively. Cyclic voltammetry, galvanostatic charge/discharge, and impedance spectroscopy measurements have been performed to compare the electrochemical properties of the fabricated devices. Compared to reference electrolytes containing NaCl, the utilization of sodium acetate exhibited enhancements in energy performance and stability up to 50000 cycles. The most efficient device has been delivered approximately 10.6 Wh/kg of energy at a high‐power density of about 3940 W/kg. A comprehensive investigation of the electrochemical performances has been carried out, considering both faradaic and non‐faradaic processes as charge storage mechanisms within the devices. A model has been proposed to describe the storage mechanisms and to provide insights into the ageing phenomena observed during the cycling procedure.

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Electrodeposited molybdenum selenide sheets on nickel foam as a binder-free electrode for supercapacitor application

Cited by 90 publications

References 50 publications

Cyclic Silylselenides: Convenient Selenium Precursors for Atomic Layer Deposition

Cyclic Silylselenides: Convenient Selenium Precursors for Atomic Layer Deposition

Self‐Supporting CuCo₂S₄ Microspheres for High‐Performance Flexible Asymmetric Solid‐State Supercapacitors

Impact of Acetate‐Based Hydrogel Electrolyte on Electrical Performance and Stability of Eco‐Friendly Supercapacitors

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Electrodeposited molybdenum selenide sheets on nickel foam as a binder-free electrode for supercapacitor application

Cited by 90 publications

References 50 publications

Cyclic Silylselenides: Convenient Selenium Precursors for Atomic Layer Deposition

Cyclic Silylselenides: Convenient Selenium Precursors for Atomic Layer Deposition

Self‐Supporting CuCo2S4 Microspheres for High‐Performance Flexible Asymmetric Solid‐State Supercapacitors

Impact of Acetate‐Based Hydrogel Electrolyte on Electrical Performance and Stability of Eco‐Friendly Supercapacitors

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Product

Resources

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Self‐Supporting CuCo₂S₄ Microspheres for High‐Performance Flexible Asymmetric Solid‐State Supercapacitors