Electrodeposited nickel cobalt sulfide nanosheet arrays on 3D-graphene/Ni foam for high-performance supercapacitors

Yang, Wang; Wang, Lidong; Wei, Bing; Miao, Qinghua; Yuan, Yukun; Yang, Zhiyuan; Fei, Weidong

doi:10.1039/c5ra20898j

Cited by 44 publications

(13 citation statements)

References 51 publications

(57 reference statements)

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“… 22 demonstrated facile synthesis and superior electrochemical performances of CoNi 2 S 4 /graphene nanocomposite suitable for supercapacitor electrodes with maximum specific capacitance of 2009.1 F/g at a discharge current density of 1 A/g; Wang et al . 23 reported electrodeposited nickel cobalt sulfide nanosheet arrays on 3D graphene/nickel foam for high performance supercapacitors with good electrochemical performance; similarly, Patil et al . 24 and Beka et al .…”

Section: Introductionmentioning

confidence: 91%

Nickel Cobalt Sulfide core/shell structure on 3D Graphene for supercapacitor application

Beka

Liu

2017

Sci Rep

118

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Three-dimensional (3D) core/shell structure of nickel cobalt sulfide is nano-engineered by using series of hydrothermal steps on a CVD grown graphene for supercapacitor application. This core/shell is composited of NiCo2S4 nanotube (NCS) as core and CoxNi(3−x)S2 (CNS) nanosheets as a shell. The as-synthesized composite exhibits excellent electrochemical properties by using the advantage of NCS nanontube core as superhighway for electron and ion transport, and CNS nanosheets shell as high active area pseudocapacitive material. The 3D graphene layer serves as excellent surface area to support 3D NCS/CNS; moreover, it provides excellent electrical conductivity between nickel foam current collector and the 3D NCS/NCS composite. Using these hybrid advantages the as-synthesized graphene/NCS/CNS composite electrode exhibits high areal capacitance of 15.6 F/cm2 at current density of 10 mA/cm2; excellent cycling stability of 93% after 5000 of cycles and excellent rate capability of 74.36% as current increase from 10 to 100 mA/cm2. Moreover, a prototype of asymmetric device fabricated using graphene/NCS/CNS as positive electrode and RGO as negative electrode exhibits high energy density of 23.9 Wh/kg and power density of 2460.6 W/kg at high operating current of 100 mA. Such high performance electrode material may get great application in future energy storage device.

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Section: Introductionmentioning

confidence: 91%

Nickel Cobalt Sulfide core/shell structure on 3D Graphene for supercapacitor application

Beka

Liu

2017

Sci Rep

118

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“…Figure b exhibits the C 1s peaks at bingding energy of 284.5, 285.5, and 288.1 eV can be attributed to the CC, CO, and CO bonds, respectively. As shown in Figure c, the Ni 2p spectrum can be well fitted with two spin‐orbit doublets and two shake‐up satellites, in which the binding energy at 855.6 eV in Ni 2p 3/2 and 872.4 eV in Ni 2p 1/2 corresponded to the spin‐orbit characteristics of Ni 2+ , and the binding energy at 857.0 eV in Ni 2p 3/2 and 874.7 eV in Ni 2p 1/2 agreed with the characteristics of Ni 3+ . In Figure d, the peaks at 161.3 eV (S 2p 1/2 ) and 163.3 eV (S 2p 3/2 ) were associated with the typical metal‐sulfur bonds …”

Section: Resultsmentioning

confidence: 58%

Facile Construction of 3D Reduced Graphene Oxide Wrapped Ni₃S₂ Nanoparticles on Ni Foam for High‐Performance Asymmetric Supercapacitor Electrodes

Chang

et al. 2017

Part & Part Syst Charact

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3D reduced graphene oxide (rGO)‐wrapped Ni3S2 nanoparticles on Ni foam with porous structure is successfully synthesized via a facile one‐step solvothermal method. This unique structure and the positive synergistic effect between Ni3S2 nanoparticles and graphene can greatly improve the electrochemical performance of the NF@rGO/Ni3S2 composite. Detailed electrochemical measurements show that the NF@rGO/Ni3S2 composite exhibits excellent supercapacitor performance with a high specific capacitance of 4048 mF cm−2 (816.8 F g−1) at a current density of 5 mA cm−2 (0.98 A g−1), as well as long cycling ability (93.8% capacitance retention after 6000 cycles at a current density of 25 mA cm−2). A novel aqueous asymmetric supercapacitor is designed using the NF@rGO/Ni3S2 composite as positive electrode and nitrogen‐doped graphene as negative electrode. The assembled device displays an energy density of 32.6 W h kg−1 at a power density of 399.8 W kg−1, and maintains 16.7 W h kg−1 at 8000.2 W kg−1. This outstanding performance promotes the as‐prepared NF@rGO/Ni3S2 composite to be ideal electrode materials for supercapacitors.

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“…In the S 2p XPS spectrum (Figure 3g), three peaks were fitted at 160.1 and 167.2 eV which represent S 2p 1/2 and S 2p 3/2 levels, respectively. [30,31] Another peak emerged at 163.4 eV corresponds to the satellite peak of the S element. The Ag 3d spectrum in Figure 3h was also resolved into Ag 3d 5/2 (368.1 eV) and Ag 3d 3/2 (373 eV), which confirmed the existence of metallic silver in the prepared composite material.…”

Section: Resultsmentioning

confidence: 99%

Nanosilver‐Particles Integrated Ni₃Sn₂S₂‐CoS Composite as an Advanced Electrode for High Energy Density Hybrid Cell

et al. 2021

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An ion‐exchange process is a promising approach to design advanced electrode materials for high‐performance energy storage devices. Herein, a nanostructured Ni3Sn2S2‐CoS (NSS‐CS) composite is fabricated by successive hydrothermal and ion‐exchange processes. Since the incorporation of redox‐rich cobalt element enables the NSS‐CS composite to be more electrochemically active, its impact on the electrochemical performance is therefore extensively studied. Particularly, the NSS‐CS‐0.2 g electrode material delivered a high areal capacity of 830.4 µAh cm−2 at 5 mA cm−2. Additionally, a room‐temperature wet‐chemical approach is employed to anchor nanosilver (nAg)‐particles on the NSS‐CS‐0.2 g (nAg@NSS‐CS‐0.2 g) to further exalt its electrokinetics. Consequently, the nAg@NSS‐CS‐0.2 g electrode shows a higher areal capacity of 948.5 µAh cm−2 (193.5 mAh g−1) than that of the NSS‐CS‐0.2 g. Furthermore, its practicability is also examined by assembling a hybrid cell. The assembled hybrid cell delivers a high areal capacity of 969.2 µAh cm−2 (49.2 mAh g−1) at 7 mA cm−2 and maximum areal energies and power densities of 0.784 mWh cm−2 (40.8 Wh kg−1) and 45 mW cm−2 (2347.4 W kg−1), respectively. The efficiency of the hybrid cells is also tested by harvesting solar energy, followed by energizing electronic components. This work can pave the way for significant attraction in designing advanced electrodes for energy‐related fields.

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Electrodeposited nickel cobalt sulfide nanosheet arrays on 3D-graphene/Ni foam for high-performance supercapacitors

Abstract: With the synergistic effect of 3D RGO and Ni–Co–S nanosheets, a Ni–Co–S/RGO/NF electrode exhibits excellent electrochemical performance.

Cited by 44 publications

References 51 publications

Nickel Cobalt Sulfide core/shell structure on 3D Graphene for supercapacitor application

Nickel Cobalt Sulfide core/shell structure on 3D Graphene for supercapacitor application

Facile Construction of 3D Reduced Graphene Oxide Wrapped Ni₃S₂ Nanoparticles on Ni Foam for High‐Performance Asymmetric Supercapacitor Electrodes

Nanosilver‐Particles Integrated Ni₃Sn₂S₂‐CoS Composite as an Advanced Electrode for High Energy Density Hybrid Cell

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Electrodeposited nickel cobalt sulfide nanosheet arrays on 3D-graphene/Ni foam for high-performance supercapacitors

Abstract: With the synergistic effect of 3D RGO and Ni–Co–S nanosheets, a Ni–Co–S/RGO/NF electrode exhibits excellent electrochemical performance.

Cited by 44 publications

References 51 publications

Nickel Cobalt Sulfide core/shell structure on 3D Graphene for supercapacitor application

Nickel Cobalt Sulfide core/shell structure on 3D Graphene for supercapacitor application

Facile Construction of 3D Reduced Graphene Oxide Wrapped Ni3S2 Nanoparticles on Ni Foam for High‐Performance Asymmetric Supercapacitor Electrodes

Nanosilver‐Particles Integrated Ni3Sn2S2‐CoS Composite as an Advanced Electrode for High Energy Density Hybrid Cell

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Resources

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Facile Construction of 3D Reduced Graphene Oxide Wrapped Ni₃S₂ Nanoparticles on Ni Foam for High‐Performance Asymmetric Supercapacitor Electrodes

Nanosilver‐Particles Integrated Ni₃Sn₂S₂‐CoS Composite as an Advanced Electrode for High Energy Density Hybrid Cell