Synthesis, Microstructure and Electrical Properties of NiCo2O4/rGO Composites as Pseudocapacitive Electrode for Supercapacitors

Manalu, Andriono

doi:10.20964/2022.03.11

Cited by 12 publications

(3 citation statements)

References 26 publications

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Section: Structural Morphological and Compositional Analysissupporting

confidence: 56%

“…Additionally, the existence of the carboxylic group is represented by the peak at 1711 cm −1 . Some novel peaks located at 538 and 419 cm −1 are associated with the Sn-S bond which confirms the presence of SnS 2 in the CC/NiCo 2 O 4 @SnS 2 nanosheets[31].The specific surface areas of the synthesized products are determined by measuring N 2 adsorption-desorption isotherms. FigureS4(b) displays the nitrogen adsorption-desorption isotherms for NiCo 2 O 4 and NiCo 2 O 4 @SnS 2 at 77 K. In comparison to NiCo 2 O 4 nanostructure, the isotherm of NiCo 2 O 4 @SnS 2 nanosheets exhibits a considerably broader hysteresis loop.…”

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confidence: 70%

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NiCo₂O₄@SnS₂ nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

Bibi,

Yu,

Nisar

et al. 2024

Nanotechnology

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Bi-functional materials provide an opportunity for the development of high-performance devices. Up till now, bi-functional performance of NiCo2O4@SnS2 nanosheets is rarely investigated. In this work, NiCo2O4@SnS2 nanosheets were synthesized on carbon cloth by utilizing a simple hydrothermal technique. The developed electrode (NiCo2O4@SnS2/CC) was investigated for the detection of L-Cysteine and supercapacitors applications. As a non-enzymatic sensor, the electrode proved to be highly sensitive for the detection of L-cysteine. The electrode exhibits a reproducible sensitivity of 4645.82 µA mM-1 cm-2 in a wide linear range from 0.5 to 5 mM with a low limit of detection (0.005 μM). Moreover, the electrode shows an excellent selectivity and long-time stability. The high specific surface area, enhanced kinetics, good synergy and distinct architecture of NiCo2O4@SnS2 nanosheets produce a large number of active sites with substantial energy storage potential. As a supercapacitor, the electrode exhibits improve capacitance of 655.7 Fg-1 at a current density of 2 A g−1 as compare to NiCo2O4/CC (560 Fg-1). Moreover, the electrode achieves 95.3 % of its preliminary capacitance after 10,000 cycles at 2Ag−1. Our results show that NiCo2O4@SnS2/CC nanosheets possess binary features could be attractive electrode material for the development of non-enzymatic biosensors as well as supercapacitors.

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Section: Structural Morphological and Compositional Analysissupporting

confidence: 56%

mentioning

confidence: 70%

NiCo₂O₄@SnS₂ nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

Bibi,

Yu,

Nisar

et al. 2024

Nanotechnology

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“…It is generally believed that supercapacitors are a new type of energy storage component between traditional capacitors and batteries, with some characteristics of both [ 36 , 37 , 38 , 39 ]. They are widely used in the fields of high-power pulse power supply and electric vehicle drive power supply [ 40 , 41 , 42 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Review of NiS-Based Electrode Nanomaterials for Supercapacitors

Guan

Su³

et al. 2023

Nanomaterials

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As a new type of energy storage device, supercapacitors have the advantages of high-power densities, high safety factors, and low maintenance costs, so they have attracted widespread attention among researchers. However, a major problem with supercapacitors is that their energy densities are not high enough, which limits their application. Therefore, it is crucial to expand the application scenarios of supercapacitors to increase their energy density as much as possible without diminishing their advantages. The classification and working principles of supercapacitors are introduced in this paper. The electrochemical properties of pure NiS materials, NiS composites with carbon materials, NiS composites with sulfide materials, and NiS composites with transition metal oxides for supercapacitors are summarized. This paper may assist in the design of new electrode materials for NiS-based supercapacitors.

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Benchmarking the Intrinsic Activity of Transition Metal Oxides for the Oxygen Evolution Reaction with Advanced Nanoelectrodes

Gao,

Xu,

Zhang

et al. 2024

Angewandte Chemie

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The intrinsic activity assessment of transition metal oxides (TMOs) as key electrocatalysts for the oxygen evolution reaction (OER) has not been standardized due to uncertainties regarding their structure and composition, difficulties in accurately measuring their electrochemically active surface area (ECSA), and deficiencies in mass‐transfer (MT) rates in conventional measurements. To address these issues, we utilized an electrodeposition‐thermal annealing method to precisely synthesize single‐particle TMOs with well‐defined structure and composition. Concurrently, we engineered low roughness, spherical surfaces for individual particles, enabling precise measurement of their ECSA. Furthermore, by constructing a conductor‐core semiconductor‐shell structure, we evaluated the inherent OER activity of perovskite‐type semiconductor materials, broadening the scope beyond just conductive TMOs. Finally, using single‐particle nanoelectrode technique, we systematically measured individual TMO particles of various sizes for OER, overcoming MT limitations seen in conventional approaches. These improvements have led us to propose a precise and reliable approach to evaluating the intrinsic activity of TMOs, not only validating the accuracy of theoretical calculations but also revealing a strong correlation of OER activity on the melting point of TMOs. This discovery holds significant importance for future high‐throughput material research and applications, offering valuable insights in electrocatalysis.

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Synthesis, Microstructure and Electrical Properties of NiCo2O4/rGO Composites as Pseudocapacitive Electrode for Supercapacitors

Cited by 12 publications

References 26 publications

NiCo₂O₄@SnS₂ nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

NiCo₂O₄@SnS₂ nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

Review of NiS-Based Electrode Nanomaterials for Supercapacitors

Benchmarking the Intrinsic Activity of Transition Metal Oxides for the Oxygen Evolution Reaction with Advanced Nanoelectrodes

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Synthesis, Microstructure and Electrical Properties of NiCo2O4/rGO Composites as Pseudocapacitive Electrode for Supercapacitors

Cited by 12 publications

References 26 publications

NiCo2O4@SnS2 nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

NiCo2O4@SnS2 nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

Review of NiS-Based Electrode Nanomaterials for Supercapacitors

Benchmarking the Intrinsic Activity of Transition Metal Oxides for the Oxygen Evolution Reaction with Advanced Nanoelectrodes

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Product

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NiCo₂O₄@SnS₂ nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications

NiCo₂O₄@SnS₂ nanosheets on carbon cloth as efficient bi-functional material for high performance supercapacitor and sensor applications