Single-crystal β-NiS nanorod arrays with a hollow-structured Ni<sub>3</sub>S<sub>2</sub> framework for supercapacitor applications

Li, Wei; Wang, Shaolan; Xin, Lipeng; Wu, Ming; Lou, Xiaojie

doi:10.1039/c6ta01133k

Cited by 173 publications

(61 citation statements)

References 61 publications

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“…This suggests that the Cu and appropriate amount of PVP in MnS can decrease the Rct, significantly. This shows that the low Faraday resistance contributes to the enhanced SC and power of the Cu-MnS with 2PVP composite electrode in a KOH solution [40,41]. The long-term stability of the Cu-MnS and Cu-MnS with 2PVP electrodes was also performed at a current density of 1 A g −1 for 1000 cycles.…”

Section: Resultsmentioning

confidence: 99%

One-Pot Hydrothermal Synthesis of Novel Cu-MnS with PVP Cabbage-Like Nanostructures for High-Performance Supercapacitors

et al. 2018

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This paper reports the facile synthesis of a novel architecture of Cu-MnS with PVP, where the high theoretical capacitance of MnS, low-cost, and high electrical conductivity of Cu, as well as appreciable surface area with high thermal and mechanical conductivity of PVP, as a single entity to fabricate a high-performance electrode for supercapacitor. Benefiting from their unique structures, the Cu-MnS with 2PVP electrode materials show a high specific capacitance of 833.58 F g −1 at 1 A g −1 , reversibility for the charge/discharge process, which are much higher than that of the MnS-7 h, Cu-MnS, and Cu-MnS with 1 and 3PVP. The presence of an appropriate amount of PVP in Cu-MnS is favorable for improving the electrochemical performance of the electrode and the existence of Cu was inclined to enhance the electrical conductivity. The Cu-MnS with 2PVP electrode is a good reference for researchers to design and fabricate new electrode materials with enhanced capacitive performance.

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Section: Resultsmentioning

confidence: 99%

One-Pot Hydrothermal Synthesis of Novel Cu-MnS with PVP Cabbage-Like Nanostructures for High-Performance Supercapacitors

et al. 2018

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“…The asymmetric supercapacitor in this work can work steadily at potential window of 1.5 V, and can deliver an ultrahigh density of 86.3 Wh kg À1 at a power density of 379.1 W kg À1 based on the total mass of the active materials. Even at a high power density of 7,490 W kg À1 , the energy density can still be maintained at 65.4 Wh kg À1 , which is superior to those of previous reported devices in the literatures [47][48][49][50][51][52][53] (Table S1 online). Furthermore, two identical asymmetric supercapacitors were connected in series and charged to 3 V. After that, they can easily light up three color-changing LEDs (Fig.…”

Section: Resultsmentioning

confidence: 67%

One-pot synthesis of nickel-cobalt hydroxyfluorides nanowires with ultrahigh energy density for an asymmetric supercapacitor

et al. 2018

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“…It can be seen that there are well-defined redox peaks at different scan rates from 2 to 50 mV s -1 , which indicates the Faraday reaction nature of the NiSx/NF electrode [29]. The redox reaction of nickel sulfides in alkaline electrolyte is expressed as shown below [30][31][32].…”

Section: Electrochemical Performancementioning

confidence: 94%

One-Step Synthesis of Self-Supported Ni3S2/NiS Composite Film on Ni Foam by Electrodeposition for High-Performance Supercapacitors

et al. 2019

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Herein, a facile one-step electrodeposition route was presented for preparing Ni3S2/NiS composite film on Ni foam substrate (denoted as NiSx/NF). The NiSx granular film is composed of mangy interconnected ultra-thin NiSx nanoflakes with porous structures. When applied as electrodes for supercapacitors, the ultra-thin nanoflakes can provide more active sites for redox reaction, and the interconnected porous structure has an advantage for electrolyte ions to penetrate into the inner space of active materials quickly. As expected, the obtained NiSx/NF sample exhibited high gravimetric capacitance of 1649.8 F·g−1 and areal capacitance of 2.63 F·cm−2. Furthermore, a gravimetric capacitance of 1120.1 F·g−1 can be maintained at a high current density of 20 mA·cm−2, suggesting a good rate capability. The influence of the different molar ratios of electrodeposition electrolyte (NiNO3 and thiourea) on the morphology and electrochemical properties of NiSx/NF sample was investigated to provide an optimum route for one-step electrodeposition of Ni3S2/NiS composite film. The outstanding performance indicated the Ni3S2/NiS composite film on Ni foam has great potential as an electrode material for supercapacitors.

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Single-crystal β-NiS nanorod arrays with a hollow-structured Ni₃S₂ framework for supercapacitor applications

Abstract: Single-crystal β-NiS nanorod arrays were in situ grown on a hollow structured Ni3S2 porous framework by a facile one-step solvothermal approach, and finally the materials with a pine twig-like structure are constructed for high-performance electrode materials in supercapacitors.

Cited by 173 publications

References 61 publications

One-Pot Hydrothermal Synthesis of Novel Cu-MnS with PVP Cabbage-Like Nanostructures for High-Performance Supercapacitors

One-Pot Hydrothermal Synthesis of Novel Cu-MnS with PVP Cabbage-Like Nanostructures for High-Performance Supercapacitors

One-pot synthesis of nickel-cobalt hydroxyfluorides nanowires with ultrahigh energy density for an asymmetric supercapacitor

One-Step Synthesis of Self-Supported Ni3S2/NiS Composite Film on Ni Foam by Electrodeposition for High-Performance Supercapacitors

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Single-crystal β-NiS nanorod arrays with a hollow-structured Ni3S2 framework for supercapacitor applications

Abstract: Single-crystal β-NiS nanorod arrays were in situ grown on a hollow structured Ni3S2 porous framework by a facile one-step solvothermal approach, and finally the materials with a pine twig-like structure are constructed for high-performance electrode materials in supercapacitors.

Cited by 173 publications

References 61 publications

One-Pot Hydrothermal Synthesis of Novel Cu-MnS with PVP Cabbage-Like Nanostructures for High-Performance Supercapacitors

One-Pot Hydrothermal Synthesis of Novel Cu-MnS with PVP Cabbage-Like Nanostructures for High-Performance Supercapacitors

One-pot synthesis of nickel-cobalt hydroxyfluorides nanowires with ultrahigh energy density for an asymmetric supercapacitor

One-Step Synthesis of Self-Supported Ni3S2/NiS Composite Film on Ni Foam by Electrodeposition for High-Performance Supercapacitors

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Single-crystal β-NiS nanorod arrays with a hollow-structured Ni₃S₂ framework for supercapacitor applications