Design and synthesis of three-dimensional CoNi2S4@MoS2@rGO nanocomposites and its application in electrochemical supercapacitors

Farshadnia, Maziar; Ensafi, Ali A.; Mousaabadi, Kimia Zarean; Rezaei, Behzad

doi:10.1016/j.jallcom.2022.164278

Cited by 29 publications

(6 citation statements)

References 44 publications

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“…1d correspond to the A 1g and T 2g1 vibration modes of CoNi 2 S 4 . 39 The Raman characteristic peaks at 305, 350 and 385 cm −1 correspond to the asymmetric bending vibration of the quaternary S-Ni (Co) bond, which also indicates that the bimetallic sulfide has successfully grown on nickel foam. 40,41 The Raman peaks near 1340 and 1560 cm −1 represent the graphene sp 3 hybrid D band and sp 2 hybrid G band, which also proves the existence of a C 3 N 4 component in CoNi 2 S 4 /C 3 N 4 .…”

Section: Electrochemical Characterizationmentioning

confidence: 91%

Tentacle-like core–shell CoNi₂S₄/C₃N₄ bifunctional electrocatalysts for efficient overall alkaline water splitting

et al. 2023

Dalton Trans.

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Section: Electrochemical Characterizationmentioning

confidence: 91%

Tentacle-like core–shell CoNi₂S₄/C₃N₄ bifunctional electrocatalysts for efficient overall alkaline water splitting

et al. 2023

Dalton Trans.

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“…Distinct diffraction peaks are observed for CoNi 2 S 4 at 38.16 and 41.74°, where 38.16°can be indexed to the (004) crystalline surface. 30,31 The diffraction peaks at 34.6 and 45.92°c orrespond to the planes of the NiS (101) and (102) crystalline surface, 32 and the peak at 46.9°is assigned to the (102) plane of CoS. 33,34 The results indicate that the cobalt− nickel sulfides were successfully deposited on the nickel foam surface. After the doping of Au, the main cobalt−nickel sulfides did not show significant changes in the XRD spectrum.…”

Section: Structural Characterizationmentioning

confidence: 84%

Gold-Doped Cobalt–Nickel Sulfide Nanosheets for Oxygen Evolution Reaction

Liu,

Xu,

Guo

et al. 2024

ACS Appl. Nano Mater.

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The electrolytic water of oxygen evolution reaction is a four-electron transport process, which results in a slow kinetic process coupled with a high oxygen evolution reaction application potential; therefore, the catalysts have become an urgent bottleneck in the research of hydrolysis reactions. Research on the oxygen evolution reaction is booming with various materials such as noble metals and transition metals. Because of their intrinsically excellent charge transport properties and cost-effective features, transition metal sulfides have attracted much investigation. Herein, we combined the synergistic catalysis of transition metals with the modification of trace noble metal atoms to design and synthesize gold-doped cobalt−nickel sulfide nanosheets (Au-CoNiS x NSs) for oxygen evolution reaction. The cobalt−nickel ratio of electrodeposition and the doping of Au on the millimolar scale were studied. The doping of Au atoms promoted the deposition of sulfur elements and led to the formation of more compact nanostructures, thereby improving the OER performance. The optimal electrochemical performance was obtained with Co/Ni = 3:1 and Au addition of 0.5 mmol/L, with an overpotential of 305.9 mV (vs RHE) at a current density of 10 mA/cm 2 and a Tafel slope of 60.98 mV/dec. In the chronopotentiometry measurement, there was no significant difference in electrochemical performance within 12 h, indicating that the nanomaterial has good catalytic stability.

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“…Furthermore, the CoNi 2 S 4 @MoS 2 @rGO electrode displayed an impressive 93.6% stability of its initial capacity after 3000 consecutive charge/discharge cycles at a current density of 10 A g −1 . Moreover, the energy density of 41 Wh kg −1 and power density of 700 W kg −1 demonstrate the potential for this electrode to operate effectively under high power needs, indicating its wide-ranging applicability in supercapacitor applications [ 182 ]. The Bi 2 S 3 /MoS 2 nanohybrid, which has a flower-like structure and contains high-quality heterostructures and 3D aisles, boasts exceptional electrochemical capabilities.…”

Section: Energy Applicationsmentioning

confidence: 99%

Recent Advances in Molybdenum Disulfide and Its Nanocomposites for Energy Applications: Challenges and Development

et al. 2023

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Energy storage and conversion are critical components of modern energy systems, enabling the integration of renewable energy sources and the optimization of energy use. These technologies play a key role in reducing greenhouse gas emissions and promoting sustainable development. Supercapacitors play a vital role in the development of energy storage systems due to their high power density, long life cycles, high stability, low manufacturing cost, fast charging-discharging capability and eco-friendly. Molybdenum disulfide (MoS2) has emerged as a promising material for supercapacitor electrodes due to its high surface area, excellent electrical conductivity, and good stability. Its unique layered structure also allows for efficient ion transport and storage, making it a potential candidate for high-performance energy storage devices. Additionally, research efforts have focused on improving synthesis methods and developing novel device architectures to enhance the performance of MoS2-based devices. This review article on MoS2 and MoS2-based nanocomposites provides a comprehensive overview of the recent advancements in the synthesis, properties, and applications of MoS2 and its nanocomposites in the field of supercapacitors. This article also highlights the challenges and future directions in this rapidly growing field.

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Design and synthesis of three-dimensional CoNi2S4@MoS2@rGO nanocomposites and its application in electrochemical supercapacitors

Cited by 29 publications

References 44 publications

Tentacle-like core–shell CoNi₂S₄/C₃N₄ bifunctional electrocatalysts for efficient overall alkaline water splitting

Tentacle-like core–shell CoNi₂S₄/C₃N₄ bifunctional electrocatalysts for efficient overall alkaline water splitting

Gold-Doped Cobalt–Nickel Sulfide Nanosheets for Oxygen Evolution Reaction

Recent Advances in Molybdenum Disulfide and Its Nanocomposites for Energy Applications: Challenges and Development

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Design and synthesis of three-dimensional CoNi2S4@MoS2@rGO nanocomposites and its application in electrochemical supercapacitors

Cited by 29 publications

References 44 publications

Tentacle-like core–shell CoNi2S4/C3N4 bifunctional electrocatalysts for efficient overall alkaline water splitting

Tentacle-like core–shell CoNi2S4/C3N4 bifunctional electrocatalysts for efficient overall alkaline water splitting

Gold-Doped Cobalt–Nickel Sulfide Nanosheets for Oxygen Evolution Reaction

Recent Advances in Molybdenum Disulfide and Its Nanocomposites for Energy Applications: Challenges and Development

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Tentacle-like core–shell CoNi₂S₄/C₃N₄ bifunctional electrocatalysts for efficient overall alkaline water splitting

Tentacle-like core–shell CoNi₂S₄/C₃N₄ bifunctional electrocatalysts for efficient overall alkaline water splitting