Construction of metal-organic framework-derived CeO2/C integrated MoS2 hybrid for high-performance asymmetric supercapacitor

Govindan, R.; Hong, Xu‐Jia; Sathishkumar, P.; Cai, Yue‐Peng; Gu, Feng

doi:10.1016/j.electacta.2020.136502

Cited by 86 publications

(29 citation statements)

References 77 publications

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“…For the construction of the negative electrode (activated carbon), a mixture of carbon black, AC, and polytetrafluoroethylene, with the weight ratio 10 : 80 : 10 in ethanol was pressed onto the nickel foam for 3 min at 10 MPa. The specific capacity ( C s : C g −1 ) of the as‐constructed electrodes based on the GCD plots was estimated by Equation 1: [39,40]

true C_{s} = \frac{I \times Δ t}{m}

…”

Section: Methodsmentioning

confidence: 99%

“…To attain desirable performance for the NFCS‐NS//AC, the mass ratio of the NFCS‐NS to activated carbon was optimized to ≈0.15. The mass ratio of NFCS‐NS to AC was determined from Equation 2: [39,40]

true \frac{m_{+}}{m_{-}} = \frac{C_{-} \times Δ V_{-}}{C_{+} \times Δ V_{+}}

…”

Section: Methodsmentioning

confidence: 99%

“…Using the following formulas, we were able to estimate the energy density ( E , Wh kg −1 ) and power density ( P , W kg −1 ) of the NFCS‐NS//AC device [Eqs. (3) and (4)] [39,40]

true E = \frac{C V^{2}}{7.2}

true P = \frac{E D \times 3600}{Δ t}

…”

Section: Methodsmentioning

confidence: 99%

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One‐Step Synthesis of Porous Ni−Co−Fe−S Nanosheet Arrays as an Efficient Battery‐Type Electrode Material for Hybrid Supercapacitors

Alitabar

Zardkhoshoui

Davarani

2020

Batteries & Supercaps

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Construction of porous nanosheet arrays of transition-metal sulfides (TMSs) holds great potential for energy storage. Herein, a one-step hydrothermal process is employed for the construction of porous Ni 1.43 Fe .5 Co .5 S .97 nanosheet arrays (NFCS-NS) on the nickel foam as a proper positive electrode for hybrid supercapacitor. Owing to the appealing structural features, the NFCS-NS depicts a high capacity of 1156 C g À 1 at 2 A g À 1 , desirable rate capability of 81.1 %, and significant cyclability of 92.9 %. Also, a promising hybrid device (NFCS-NS//AC) based on NFCS-NS and activated carbon (AC) represents a reasonable energy density of 57.3 Wh kg À 1 at 807.04 W kg À 1 and a notable power density of 20000 W kg À 1 at 40 Wh kg À 1. Therefore, our current research can introduce an effective strategy for the fabrication of high-performance electrodes with porous architectures.

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true C_{s} = \frac{I \times Δ t}{m}

…”

Section: Methodsmentioning

confidence: 99%

true \frac{m_{+}}{m_{-}} = \frac{C_{-} \times Δ V_{-}}{C_{+} \times Δ V_{+}}

…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

One‐Step Synthesis of Porous Ni−Co−Fe−S Nanosheet Arrays as an Efficient Battery‐Type Electrode Material for Hybrid Supercapacitors

Alitabar

Zardkhoshoui

Davarani

2020

Batteries & Supercaps

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“…The L-rGO-C-MOF composite obtained a specific capacitance of 390 F g −1 at 5 mV s −1 and a capacity retention of 97.8% after 5000 cycles at 10 A g −1 . The CeO 2 /C/MoS 2 (derived from Ce-BTC) hybrid, also derived from the M-BTC subfamily, delivered an eminent specific capacitance of 1325.7 F g −1 and remarkable cyclic stability with capacitance retention of 92.8% over 1000 charging–discharging cycles, which is significantly higher than that of CeO 2 /C (727.5 F g −1 ) or that of MoS 2 (300.3 F g −1 ) at 1 A g −1 [ 74 ] ( Figure 4 b). The CeO 2 /C/MoS 2 //AC (pasted on NF) ASC showed an energy density of 34.55 Wh kg −1 at a power density of 666.7 W kg −1 .…”

Section: Mofs As Precursors For Scsmentioning

confidence: 99%

“… The schematic diagram of the preparation approach of ( a ) L-rGO-C-MOF [ 73 ], ( b ) CeO 2 /C/MoS 2 (derived from Ce-BTC) [ 74 ], ( c ) ZIF-8-derived NCT [ 76 ] and ( d ) ZIF-derived MnMC on NF [ 77 ]. Reproduced with permission from References [ 73 , 74 , 76 , 77 ]. Elsevier, 2020.…”

Section: Figurementioning

confidence: 99%

The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

et al. 2020

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Supercapacitors (SCs), one of the most popular types of energy-storage devices, present lots of advantages, such as large power density and fast charge/discharge capability. Being the promising SCs electrode materials, metal–organic frameworks (MOFs) and their derivatives have gained ever-increasing attention due to their large specific surface area, controllable porous structure and rich diversity. Herein, the recent development of MOFs-based materials and their application in SCs as the electrode are reviewed and summarized. The preparation method, the morphology of the materials and the electrical performance of various MOFs and their derivatives (such as carbon, metal oxide/hydroxide and metal sulfide) are briefly discussed. Most of recent works concentrate on Ni-, Co- and Mn-MOFs and their composites/derivatives. Conclusions and our outlook for the researches are also given, which would be a valuable guideline for the rational design of MOFs materials for SCs in the near future.

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Microwave‐Induced Rapid Synthesis of MoS₂@Cellulose Composites as an Efficient Electrode Material for Quasi‐Solid‐State Supercapacitor Application

2023

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Transition‐metal dichalcogenides (TMDs) are highly desired for energy‐storage devices due to their intrinsic layered structure, huge surface area, and the large number of active sites. However, the TMDs fail to reach their potential due to restacking of 2D layered structures that remains a major technological hurdle. Herein, MoS2 nanosheets and cellulose fiber binary composite (MoS2@Cellulose) prepared by the microwave‐assisted technique are demonstrated as an electrode material for supercapacitor application. The prepared material are tested in symmetric and asymmetric all solid‐state device assemblies. It is found that the quasi‐solid‐state symmetric and quasi‐solid‐state asymmetric supercapacitors exhibited remarkably higher specific capacitance of ≈294 and ≈177 F g−1 at a current density of 1 A g−1, respectively, than their counterpart. Furthermore, the symmetric and asymmetric devices deliver excellent energy densities of ≈40.84 and ≈42.67 Wh kg−1 while maintaining the power density of 400 and 791.81 W kg−1, respectively, and outstanding cyclic stability. The cellulose entanglement causes a reduction in the aggregation and restacking of MoS2, which may improve the electrochemical performance of the supercapacitor. Herein this research, a pathway is provided to create an efficient energy‐storage system using 2D materials with sustainable cellulose.

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Construction of metal-organic framework-derived CeO2/C integrated MoS2 hybrid for high-performance asymmetric supercapacitor

Cited by 86 publications

References 77 publications

One‐Step Synthesis of Porous Ni−Co−Fe−S Nanosheet Arrays as an Efficient Battery‐Type Electrode Material for Hybrid Supercapacitors

One‐Step Synthesis of Porous Ni−Co−Fe−S Nanosheet Arrays as an Efficient Battery‐Type Electrode Material for Hybrid Supercapacitors

The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

Microwave‐Induced Rapid Synthesis of MoS₂@Cellulose Composites as an Efficient Electrode Material for Quasi‐Solid‐State Supercapacitor Application

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Construction of metal-organic framework-derived CeO2/C integrated MoS2 hybrid for high-performance asymmetric supercapacitor

Cited by 86 publications

References 77 publications

One‐Step Synthesis of Porous Ni−Co−Fe−S Nanosheet Arrays as an Efficient Battery‐Type Electrode Material for Hybrid Supercapacitors

One‐Step Synthesis of Porous Ni−Co−Fe−S Nanosheet Arrays as an Efficient Battery‐Type Electrode Material for Hybrid Supercapacitors

The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

Microwave‐Induced Rapid Synthesis of MoS2@Cellulose Composites as an Efficient Electrode Material for Quasi‐Solid‐State Supercapacitor Application

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Product

Resources

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Microwave‐Induced Rapid Synthesis of MoS₂@Cellulose Composites as an Efficient Electrode Material for Quasi‐Solid‐State Supercapacitor Application