SILAR deposited nickel sulphide-nickel hydroxide nanocomposite for high performance asymmetric supercapacitor

Nath, Anish Reghu; Sandhyarani, N.

doi:10.1016/j.electacta.2020.136844

Cited by 32 publications

(14 citation statements)

References 43 publications

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“…Asymmetric stretching of the P–O–P bonds is detected at 905 cm –1 . M–OH absorbs in the regime 700–500 cm –1 , and the peak at 573 cm –1 can be correlated to the bending of Ni–O–H and due to the asymmetric bending vibration of PO 4 . − …”

Section: Resultsmentioning

confidence: 91%

“…The peak at 1116 cm –1 is owing to the asymmetric stretching of PO 4. − Vibrational bands of PO 4 3– are observed around 1093, 1026, and 994 cm –1 , corresponding to tetrahedral stretching vibrations. Asymmetric stretching of the P–O–P bonds is detected at 905 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

“…The electrochemical test was performed using a separator dipped in an aqueous electrolyte. The energy density ( E ) and power density ( P ), are obtained from formulas and , respectively E = 0.25em 1 2 0.25em 0.25em C as × normalΔ V 2 3.6 P = 0.25em 3600 × E normalΔ t …”

Section: Methodsmentioning

confidence: 99%

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Asymmetrical Supercapacitor Fabricated Using Sodium Nickel Phosphate and Transition Metal-Carbon Nitride Nanocomposite as Electrodes

et al. 2022

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Nickel phosphates with open-framework structures have better electrochemical activity and are more stable than the corresponding sulfides and hydroxides. Herein, we synthesized sodium nickel phosphate with extended rod-like morphologies through a wet chemical approach and investigated it for energy storage applications. At a current density of 3 A/g, the material attained a specific capacitance of 281 F/g in a half-cell configuration. A bimetallic nanocomposite of manganese and nickel with carbon nitride having needle-like morphology was hydrothermally synthesized and was used as the counter electrode in the asymmetrical supercapacitor (ASC) assembly. The ASC delivered an excellent cyclic stability of 102% after a consecutive run of 10,000 cycles.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

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Asymmetrical Supercapacitor Fabricated Using Sodium Nickel Phosphate and Transition Metal-Carbon Nitride Nanocomposite as Electrodes

et al. 2022

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“…For the O 1s spectrum, the peak at 530.9 eV implied the existence of OH¯ in Ni(OH) 2 derived from Ni-MOF [ 29 ]. The peak at 532.8 eV may be attributed to the oxygen atoms adsorbed on the surface of the sample ( Figure 3 c) [ 24 , 37 ]. As shown in Figure 3 d, the S 2p spectrum was composed of two peaks of S 2p 3/2 and S 2p 1/2 at 162.4 and 163.6 eV, respectively [ 38 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Ni3S2 and MOF-Derived Ni(OH)2 Composite Electrode Materials on Ni Foam for High-Performance Supercapacitors

Shao

et al. 2023

Nanomaterials

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Honeycomb-like Ni(OH)2/Ni3S2/Ni foam (NF) was fabricated via a two-step hydrothermal process and subsequent alkalization. Ni3S2 with a honeycombed structure was in-situ synthesized on the NF surface by a hydrothermal process. MOF-derived Ni(OH)2 nanosheets were then successfully grown on the Ni3S2/NF surface by a second hydrothermal process and alkaline treatment, and a large number of nanosheets were interconnected to form a typical honeycomb-like structure with a large specific surface area and porosity. As a binder-free electrode, the prepared honeycomb-like Ni(OH)2/Ni3S2/NF exhibited a high specific capacitance (2207 F·g−1 at 1 A·g−1, 1929.7 F·g−1 at 5 mV·s−1) and a remarkable rate capability and cycling stability, with 62.3% of the initial value (1 A·g−1) retained at 10 A·g−1 and 90.4% of the initial value (first circle at 50 mV·s−1) retained after 5000 cycles. A hybrid supercapacitor (HSC) was assembled with Ni(OH)2/Ni3S2/NF as the positive electrode and activated carbon (AC) as the negative electrode and exhibited an outstanding energy density of 24.5 Wh·kg−1 at the power density of 375 W·kg−1. These encouraging results render the electrode a potential candidate for energy storage.

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“…In the conventional SILAR process, the substrate is first immersed in a metal precursor solution . Subsequently, the adsorbed metal ions on the substrate react with the anions from another solution to form an inorganic layer such as hydroxides, , sulfides, , phosphates, , and fluorides . The thickness obtained by one SILAR cycle is generally a few nanometers.…”

Section: Introductionmentioning

confidence: 99%

Sequenced Successive Ionic Layer Adsorption and Reaction for Rational Design of Ni(OH)₂/FeOOH Heterostructures with Tailored Catalytic Properties

Taniguchi

Kubota

Matsushita

et al. 2021

ACS Appl. Energy Mater.

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The use of nanoscale heterostructures is an effective approach for developing catalysts that are free of precious metals for sustainable energy conversion. In this study, a sequenced successive ionic layer adsorption and reaction (sequenced-SILAR) method was developed for the fabrication of Ni(OH)2/FeOOH heterostructures. In this method, the order of the deposition cycles of individual Ni(OH)2 and FeOOH layers was programmed to control the thickness and stacking order of these layers in the heterostructure. The sequenced-SILAR process using an Fe2+ solution as the iron source produced dense heterojunctions offering overpotentials of 330 and 234 mV at 10 mA cm–2 for an oxygen evolution reaction (OER) on a flat, conducting oxide substrate and porous Ni foam, respectively. Investigation of the deposition-sequence-dependent OER activity indicated that the Ni(OH)2/FeOOH coupling effects may extend to the Ni2+ active sites located about 10 nm from the heterointerface. When an Fe3+ precursor was employed in the sequenced-SILAR process, dense heterojunctions were not produced because of the formation of isolated FeOOH particles. As a result, an excellent overpotential was not obtained. In principle, the sequenced-SILAR method can be extended to the fabrication of various types of heterostructures. However, the deposition conditions must be carefully designed to offer strong interfacial coupling effects.

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SILAR deposited nickel sulphide-nickel hydroxide nanocomposite for high performance asymmetric supercapacitor

Cited by 32 publications

References 43 publications

Asymmetrical Supercapacitor Fabricated Using Sodium Nickel Phosphate and Transition Metal-Carbon Nitride Nanocomposite as Electrodes

Asymmetrical Supercapacitor Fabricated Using Sodium Nickel Phosphate and Transition Metal-Carbon Nitride Nanocomposite as Electrodes

Synthesis of Ni3S2 and MOF-Derived Ni(OH)2 Composite Electrode Materials on Ni Foam for High-Performance Supercapacitors

Sequenced Successive Ionic Layer Adsorption and Reaction for Rational Design of Ni(OH)₂/FeOOH Heterostructures with Tailored Catalytic Properties

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SILAR deposited nickel sulphide-nickel hydroxide nanocomposite for high performance asymmetric supercapacitor

Cited by 32 publications

References 43 publications

Asymmetrical Supercapacitor Fabricated Using Sodium Nickel Phosphate and Transition Metal-Carbon Nitride Nanocomposite as Electrodes

Asymmetrical Supercapacitor Fabricated Using Sodium Nickel Phosphate and Transition Metal-Carbon Nitride Nanocomposite as Electrodes

Synthesis of Ni3S2 and MOF-Derived Ni(OH)2 Composite Electrode Materials on Ni Foam for High-Performance Supercapacitors

Sequenced Successive Ionic Layer Adsorption and Reaction for Rational Design of Ni(OH)2/FeOOH Heterostructures with Tailored Catalytic Properties

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Sequenced Successive Ionic Layer Adsorption and Reaction for Rational Design of Ni(OH)₂/FeOOH Heterostructures with Tailored Catalytic Properties