Nickel Nanoparticles Anchored onto Ni Foam for Supercapacitors with High Specific Capacitance

Cheng, Yu; Guo, Meisong; Zhai, Miaomiao; Yu, Yanan; Hu, Jingbo

doi:10.1166/jnn.2020.17377

Cited by 19 publications

(6 citation statements)

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“…Each electrode and electrolyte interface in an asymmetric supercapacitor represents a double-layer capacitor, allowing the entire cell to be thought of as two capacitors in series. In comparison to EDLC, pseudocapacitor materials exhibit faster faradaic redox reactions, which lead to increased capacitance and energy density [13]. In EDLC, conduction band electrons from metal or carbon electrodes are utilized [14], while in pseudocapacitors come from valence orbitals from redox reactions [15].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Electrochemical Performance of Supercapacitor Based on Nickel/Activated Carbon Composite Electrode

Diantoro,

Rahmadani,

Nasikhudin

et al. 2024

J. Phys.: Conf. Ser.

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Supercapacitors are promising electrochemical energy storage devices because they have higher energy than conventional capacitors and higher power than rechargeable batteries. Based on material for supercapacitors, activated Carbon (AC) has large specific surface area, high conductivity, and chemical stability, but still shows less than optimal specific capacitance and energy density. In this work, AC was composited with nickel (Ni) and Carbon Black (CB) to modify microstructure and optimize its electrochemical performance. Initially, synthesis of Ni-AC (cathode) and AC (anode) slurry was carried out by blending method in different mass percentages of Ni (5, 10, 15, 20, 25 %). The slurry was coated using doctor blade on aluminum foil. Then, Ni-AC//AC was fabricated and tested by Galvanostatic Charge-Discharge (GCD) instrument to analyze the electrochemical performance changes of supercapacitor. Based on XRD pattern, AC peak was found at 26.5° and Ni-AC composite had additional peaks in 44.4°, 51.7°, and 76.2°. The crystal size and porosity of electrode were in range of 23.2 – 45.4 nm and 66.6 – 75.7%, respectively. Based on the electrochemical evaluation, addition of 20% Ni mass in activated carbon electrode has the optimum performance, which increases active sites of the electrode and ion electrolyte adsorption capacity. Further, the GCD revealed that the prepared Ni-AC//AC electrode have excellent capacitive behavior with specific capacitance of 56.6 F/g, power density of 308.8 W/kg, energy density of 20.8 Wh/kg, and specific retention of 69.6% until 50 cycles.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Electrochemical Performance of Supercapacitor Based on Nickel/Activated Carbon Composite Electrode

Diantoro,

Rahmadani,

Nasikhudin

et al. 2024

J. Phys.: Conf. Ser.

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“…Nickel nanoparticles have been studied extensively for their superior ferromagnetic properties, including chemical stability, magneto-crystalline anisotropy, and high coercive forces [1]. In recent years, Ni nanoparticles have proven significant potential in a wide range of applications such as battery manufacturing [2], textile industry [3], enhanced pseudo-capacitance [4] and catalyst [5]. There are several methods to synthesize nanoparticles such as electrochemical mechanical milling [6], solvothermal [7], electrolysis [8] and others [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of nickel nanoparticles by pulsed laser ablation in different liquid media

Yahaya

Sapian

Duralim

et al. 2023

J. Phys.: Conf. Ser.

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Nickel nanoparticles exhibit superior ferromagnetic properties. This has attracted great interest due to its significant potential applications in various fields. The properties of nanomaterials are greatly affected by the environmental conditions during the synthetization process. In this work, nickel nanoparticles were synthesized by pulsed laser ablation in distilled water, ethylene glycol, chitosan, gum Arabic and walnut oil. For all samples, the ablated process was conducted for 5 minutes. The optical properties of colloidal nanoparticles were investigated by UV-Visible spectroscopy and Fourier Transform Infrared (FT-IR) spectrometer. Data from experimental works released that walnut oil has highest absorbance intensity which might be contributed to the existence of alkene functional group.

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“…The room temperature ferromagnetic Ni nanostructures have been widely investigated due to the large magnetocrystalline anisotropy, excellent electrical and thermal conductivities, high strength, chemical stability, and higher oxidation resistance compared to other FM metals [5][6]. As a result, Ni nanostructures have immense potential applications in magnetic memories [7], catalysis [8], battery manufacturing [9], printable electronics [10], immobilization of biological molecules [11], optical switches [12], dye-sensitized solar cells [13], and magnetic fluids [14].…”

Section: Introductionmentioning

confidence: 99%

Ferromagnetic Ni Nanostructures via Chemical Reduction Methods

Revathy¹

2023

Magnetic Nanoparticles for Biomedical Applications

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For the last couple of decades, nickel (Ni) nanostructures are in the focus of active research since they are widely applied in countless walks of modern life. But being tiny magnets, their synthesis in monodisperse form is extremely challenging. In this chapter, we review the recent trends in the synthesis of Ni through chemical reduction routes without the aid of magnetic field, hydrothermal environments, and templates. The particle size and morphology of the synthesized Ni nanostructures can easily be tailored by controlling the reaction conditions. Depending on particle size and morphology, these ferromagnetic nanomaterials have a wide variety of applications in various technological fields.

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Nickel Nanoparticles Anchored onto Ni Foam for Supercapacitors with High Specific Capacitance

Cited by 19 publications

References 0 publications

Microstructure and Electrochemical Performance of Supercapacitor Based on Nickel/Activated Carbon Composite Electrode

Microstructure and Electrochemical Performance of Supercapacitor Based on Nickel/Activated Carbon Composite Electrode

Synthesis of nickel nanoparticles by pulsed laser ablation in different liquid media

Ferromagnetic Ni Nanostructures via Chemical Reduction Methods

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