2H–MoS2 nanoflowers based high energy density solid state supercapacitor

Mishra, Shanu; Maurya, Prince Kumar; Mishra, Ashish Kumar

doi:10.1016/j.matchemphys.2020.123551

Cited by 71 publications

(25 citation statements)

References 34 publications

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“…Manufactured asymmetric supercapacitor provides an impressive energy density of 81.4 W h kg −1 in 1 M Na 2 SO 4 electrolyte. Shanu 22 reported a three-dimensional MoS 2 nanoflower with a hexagonal (2H) phase for supercapacitor applications with a high specific capacitance of 382 F g −1 at a current density of 1 A g −1 . The symmetrical solid supercapacitor device with 2H-MoS 2 nanoflower electrode and PVA-Na 2 SO 4 electrolyte exhibits an energy density of 16.4 W h kg −1 and a retention rate of 97.5% after 4000 cycles.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of vacancy-induced 2H-MoS₂ nanosheets and defect investigation for supercapacitor application

Wang

Neville

2021

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Facile synthesis of vacancy-induced 2H-MoS₂ nanosheets and defect investigation for supercapacitor application

Wang

Neville

2021

RSC Adv.

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“…The authors concluded that the 3D flowerlike morphology with exposed surface edges (Figure 8(a)) of different petals was responsible for the excellent electrochemical outputs. 84 Gupta et al reported that spherical flowerlike MoS 2 particles developed through a facile hydrothermal approach delivered a specific capacitance of 255 F g −1 at 0.25 A g −1 with a retention capacity of 70% after 1000 cycles. 86 Fu et al observed a high EC performance for MoS 2 /graphene nanosheets embedded in activated carbon nanofibers (MoS 2 @ G/AC) fabricated through an electrospinning process followed by carbonization and KOH activation.…”

Section: ■ Choice Of Electrode Materialsmentioning

confidence: 99%

Emergence of Novel 2D Materials for High-Performance Supercapacitor Electrode Applications: A Brief Review

et al. 2021

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Energy storage and production is one of the significant issues of the 21st century, motivating the search for new materials for energy storage devices. Supercapacitors (SCs) play a prominent role among the class of energy storage devices and conversion systems since they provide greater specific capacitance, high power density, longer life span, fast charge–discharge rate, excellent circulation feature, low cost, and are safe to use. The selection of electrode material has great importance in the performance of the supercapacitor. Two-dimensional (2D) layered nanomaterials gained much interest in the fabrication of electrode materials due to their unique physicochemical properties. The current review explores the synthesis and application of novel 2D materials, such as graphene, MXene, transition metal dichalcogenides (TMDs), hexagonal boron nitride (h-BN), carbon nitrides, metal oxides/hydroxides, and black phosphorus (BP), as supercapacitor electrodes in detail.

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“…The specific capacitances (C s,cell , F.g À1 ) of the fabricated symmetrical supercapacitors are computed from CV as well as GCD data by determining the corresponding parameters using the following equation (1) and (2), respectively. 29,30 C s,cell ¼…”

Section: Supercapacitor Fabrication and Characterizationmentioning

confidence: 99%

Investigation of hard/soft CoFe ₂ O ₄ / NiSc ₀ _. ₀₃ Fe ₁ _. ₉₇ O ₄ <

et al. 2021

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The hard/soft CoFe 2 O 4 /(NiSc 0.03 Fe 1.97 O 4 ) x (0 ≤ x ≤ 5) or simply (CFO-xNFSO) nanocrystals (NCs) were synthesized through sol-gel auto-combustion technique. The structural and magnetic properties of the ferrite composite NCs were explored in detail. The synthesized NCs were applied in the fabrication of supercapacitor electrodes to investigate their potential in energy storage applications. The cubic spinel ferrite phase of the NCs was verified by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM) techniques. The NCs with different x ratios displayed smoothed magnetic hysteresis loops during magnetization at 300 and 10 K temperature. In addition, the plots of switching field distribution (SFD) indicated a single peak in dM/dH vs H plots. These findings demonstrate a good exchange-coupling in the CFO-xNFSO (0.0 ≤ x ≤ 5) magnetic NCs. The supercapacitor devices fabricated from the synthesized NCs displayed enhanced capacitance and relatively high energy density as compare to electric double-layer (EDL) (carbon-based) supercapacitors. The supercapacitor fabricated from CFO-xNFSO for x = 2 showed best performance in terms of specific capacitance with 204.4 F g À1 at a scan rate of 10 mV s À1 . The performances of the fabricated supercapacitors were further tested for a higher potential window of 1.2 V, where a specific energy value of 33.2 Wh kg À1 is achieved that is 144% enhancement from the same supercapacitor working at 0.8 V and 187% enhancement as compared to the carbon-based supercapacitor. The device also displayed excellent stability as it was tested for 5000 chargedischarge cycles.

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2H–MoS2 nanoflowers based high energy density solid state supercapacitor

Cited by 71 publications

References 34 publications

Facile synthesis of vacancy-induced 2H-MoS₂ nanosheets and defect investigation for supercapacitor application

Facile synthesis of vacancy-induced 2H-MoS₂ nanosheets and defect investigation for supercapacitor application

Emergence of Novel 2D Materials for High-Performance Supercapacitor Electrode Applications: A Brief Review

Investigation of hard/soft CoFe ₂ O ₄ / NiSc ₀ _. ₀₃ Fe ₁ _. ₉₇ O ₄ <

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2H–MoS2 nanoflowers based high energy density solid state supercapacitor

Cited by 71 publications

References 34 publications

Facile synthesis of vacancy-induced 2H-MoS2 nanosheets and defect investigation for supercapacitor application

Facile synthesis of vacancy-induced 2H-MoS2 nanosheets and defect investigation for supercapacitor application

Emergence of Novel 2D Materials for High-Performance Supercapacitor Electrode Applications: A Brief Review

Investigation of hard/soft CoFe 2 O 4 / NiSc 0 . 03 Fe 1 . 97 O 4 <

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Facile synthesis of vacancy-induced 2H-MoS₂ nanosheets and defect investigation for supercapacitor application

Facile synthesis of vacancy-induced 2H-MoS₂ nanosheets and defect investigation for supercapacitor application

Investigation of hard/soft CoFe ₂ O ₄ / NiSc ₀ _. ₀₃ Fe ₁ _. ₉₇ O ₄ <