Preparation of Ni(OH)2-graphene sheet-carbon nanotube composite as electrode material for supercapacitors

Liu, Y.F.; Yuan, Guohui; Jiang, Zhihua; Yao, Zhongping; Yue, Man-Li

doi:10.1016/j.jallcom.2014.08.167

Cited by 47 publications

(16 citation statements)

References 43 publications

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“…These XPS results confirm the presence of Ni(OH) 2 and MnO 2 in the MRNN composite. We propose a possible formation mechanism to the MRNN composite based on the experimental results and some earlier work [18,25,27], are illustrated in Scheme can be mainly ascribed to a faradaic redox reaction related to Ni(OH) 2 /NiOOH [18], 10 The long-term cycling performance of this composite electrode was recorded, as shown in Fig. 3(d).…”

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confidence: 75%

Hydrothermal growth of MnO₂/RGO/Ni(OH)₂ on nickel foam with superior supercapacitor performance

et al. 2015

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A MnO 2 /reduced graphene oxide (RGO)/Ni(OH) 2 composite with arrays of mushroom-headed needle-like nanostructures on its top surface was designed and directly grown on nickel foam through a one-pot hydrothermal process without the addition of any source of extra Ni ions. Based on the redox reaction of elemental Ni and graphene oxide (GO), along with electrostatic forces between Mn ions from the solution and GO, there was good contact and strong interaction between the different components, as well as between the active materials and the Ni substrate. Hence, the as-synthesized MnO 2 /RGO/Ni(OH) 2 composite can be utilized as supercapacitor electrode with a high areal mass loading of 5.4 mg cm -2 . It exhibits superior performance: 17.8 F cm −2 (i.e., 3296.9 F g −1 ) at 7 mA cm -2 (1.3 A g -1 ), as well as capacity retention of 90.2%, even after 5,000 cycles at 20 mA cm -2 (3.7 A g -1 ).

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confidence: 75%

Hydrothermal growth of MnO₂/RGO/Ni(OH)₂ on nickel foam with superior supercapacitor performance

et al. 2015

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“…Furthermore, the three-dimensional nanocomposite has a firm nanostructure to ensure its excellent stability. Electrochemical data demonstrate that the as-prepared nanocomposite exhibits high specific capacitance of ~1600 F•g -1 at the scan rate of 1 mV•s -1 and ~ 1200 F•g -1 at the current density of 0.5 A•g -1 , which are higher than 710 F•g -1 at 1 mV•s -1 of active carbon@La 2 NiO 4 /NiO hybrid coatings [27], 1170 F•g -1 at 0.2 A•g -1 of Ni(OH) 2 -graphene sheet-carbon nanotube composite [28]. And the pure Ni(OH) 2 also show higher specific capacitance (650 F•g -1 at the current density of 1 A•g -1 ) than the firecracker-like beta-manganese dioxides@spinel nickel cobaltates nanostructures (343 F•g -1 at the current density of 0.5 A•g -1 ) [29].…”

Section: Introductionmentioning

confidence: 83%

Lamellar-crossing-structured Ni(OH)2/CNTs/Ni(OH)2 nanocomposite for electrochemical supercapacitor materials

Wang

Wen

Chen

et al. 2015

Journal of Alloys and Compounds

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“…The fabrication of nanomaterials with high porosity and enhanced surface area would also be an effective way. Also, there exists a positive synergistic effect between the graphene-based materials and metal oxides which forms an important strategy for the overcoming the difficulties of poor cycling performances [59][60][61].…”

Section: Galvanostatic Charge Discharge (Gcd) Analysismentioning

confidence: 99%

Effect of carbon coating on the electrochemical properties of Bi2WO6 nanoparticles by PVP-assisted sonochemical method

et al. 2015

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Polyvinylpyrrolidone (PVP)-assisted Bi 2 WO 6 nanoparticles were successfully synthesized by sonochemical method. Three different concentrations of PVP (0.05, 0.1, and 0.2 g) were used, and their effects over the structural, morphological, compositional, and electrochemical analysis were studied. The structural investigation revealed the formation of 100 % pure Bi 2 WO 6 phase. The presence of carbon in the PVP-assisted materials was evidenced from differential scanning calorimetry, Fourier transform infra red (FT-IR) spectroscopy and Raman analysis. There was a reduction in the particle size of Bi 2 WO 6 (30-35 nm) upon using PVP. The highly crystalline nature and the presence of carbon coating over Bi 2 WO 6 were evidenced from the high-resolution transmission electron microscopic image. Besides, the calculated d-spacing of 0.19 nm attributed to (2 0 6) lattice plane of Bi 2 WO 6 nanoparticles. Subsequently, a shift in binding energy toward larger values while using PVP was identified through X-ray photoelectron spectroscopic analysis. The electrochemical analysis showed a subsequent enhancement in specific capacitance of PVP-assisted Bi 2 WO 6 (462 F g -1 ) compared with pristine Bi 2 WO 6 (304 F g -1 ) at 3 mA cm -2 .

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Preparation of Ni(OH)2-graphene sheet-carbon nanotube composite as electrode material for supercapacitors

Cited by 47 publications

References 43 publications

Hydrothermal growth of MnO₂/RGO/Ni(OH)₂ on nickel foam with superior supercapacitor performance

Hydrothermal growth of MnO₂/RGO/Ni(OH)₂ on nickel foam with superior supercapacitor performance

Lamellar-crossing-structured Ni(OH)2/CNTs/Ni(OH)2 nanocomposite for electrochemical supercapacitor materials

Effect of carbon coating on the electrochemical properties of Bi2WO6 nanoparticles by PVP-assisted sonochemical method

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Preparation of Ni(OH)2-graphene sheet-carbon nanotube composite as electrode material for supercapacitors

Cited by 47 publications

References 43 publications

Hydrothermal growth of MnO2/RGO/Ni(OH)2 on nickel foam with superior supercapacitor performance

Hydrothermal growth of MnO2/RGO/Ni(OH)2 on nickel foam with superior supercapacitor performance

Lamellar-crossing-structured Ni(OH)2/CNTs/Ni(OH)2 nanocomposite for electrochemical supercapacitor materials

Effect of carbon coating on the electrochemical properties of Bi2WO6 nanoparticles by PVP-assisted sonochemical method

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Hydrothermal growth of MnO₂/RGO/Ni(OH)₂ on nickel foam with superior supercapacitor performance

Hydrothermal growth of MnO₂/RGO/Ni(OH)₂ on nickel foam with superior supercapacitor performance