NiCoP@CoS tree-like core-shell nanoarrays on nickel foam as battery-type electrodes for supercapacitors

Zhong, Xu; Du, Cuicui; Yang, Hengfu; Huang, Junlin; Zhang, Xiaohua; Chen, Jinhua

doi:10.1016/j.cej.2020.127871

Cited by 112 publications

(63 citation statements)

References 57 publications

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“…Based on the above, hybrid supercapacitors (HSCs) also called supercapattery with battery-type positive electrode as the energy source and electric double-layer capacitor negative electrode as the power source have been designed, it combines the dual advantages of high power density of traditional SCs and high energy density of batteries. [7][8][9][10] Further, the electrochemical properties of the HSCs are mainly determined by the battery-type electrode, so selecting suitable electrode materials or optimizing the electrode structure is essential for obtaining high-performance hybrid devices.Transition metal oxides and sulfides have become the most widely studied battery-type electrodes due to their remarkable electrochemical activity and high specific capacity. [11][12][13] For example, Chen et al reported the self-supported Ni 3 S 2 nanosheet arrays by a two-step method.…”

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An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Jiang

et al. 2021

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SCs suitable for many different occasions. [1][2][3][4][5][6][7] However, the low energy density limits their extensive commercial applications. Based on the above, hybrid supercapacitors (HSCs) also called supercapattery with battery-type positive electrode as the energy source and electric double-layer capacitor negative electrode as the power source have been designed, it combines the dual advantages of high power density of traditional SCs and high energy density of batteries. [7][8][9][10] Further, the electrochemical properties of the HSCs are mainly determined by the battery-type electrode, so selecting suitable electrode materials or optimizing the electrode structure is essential for obtaining high-performance hybrid devices.Transition metal oxides and sulfides have become the most widely studied battery-type electrodes due to their remarkable electrochemical activity and high specific capacity. [11][12][13] For example, Chen et al. reported the self-supported Ni 3 S 2 nanosheet arrays by a two-step method. Benefiting from its unique 3D sheet structure, the electrode shows superb rate capability and energy density. [14] Kim et al. designed the independent electrode of NiMo 2 S 4 using the successive ionic layer adsorption and reaction (SILAR) method, which also showed high reversible specific capacity. [15] Although some progress has been made in the research of battery-type electrodes, the inherent physical and chemical properties of the single electrode materials may limit the further development. In order to achieve higher electrochemical performance, complex and stable electrode structures are required to be constructed.In the previous work, the first-principles calculations show that amorphous oxides (such as MnO 2 , [16] ) can produce lots of unsaturated suspension bonds, which makes them have a broad application prospect in the field of energy storage. [18][19][20] Liu et al. proposed amorphous manganese oxide as the pseudocapacitive electrode, which proved to possess excellent rate capability and high cycle stability. [21] This may be due to the fact that the loose arrangement of atoms and ions is more conducive to rapid ion transport of the active materials in the bulk of oxides. Sun et al. successfully synthesized MoO 3 by electrochemical deposition technique and pointed out that the disordered structure is likely to release the structural stress caused by the repeated ion deintercalation/intercalation behavior, thus Hybrid supercapacitors (HSCs), also called supercapattery, which can substitute for low power density batteries have attracted extensive interest. However, when HSCs comes to commercial applications, there is still space for improvement in energy density. It seems that designing of electrode with high capacity is an effective measure. Herein, amorphous-crystalline MoO 3 -Ni 3 S 2 /NF-0.5 nanosheet arrays are developed as battery-type electrodes. Specifically, the sheet-like structure of crystalline Ni 3 S 2 can achieve rich structural nanocrystallization, improving the redox reacti...

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An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

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et al. 2021

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“…It is found that this special hierarchical structure provides a path for charge storage and ion transport, shortens the diffusion distance, and thus reduces the ion transfer resistance, which has high electrochemical performance. Xu et al [ 161 ] prepared hierarchical NiCoP@CoS core−shell nanoarrays by electrochemical deposition (Figure 20b). NiCoP nanowires provide electron transfer channels to accelerate charge transfer and enhance conductivity.…”

Section: Znwo4 Nanoarraysmentioning

confidence: 99%

Synthesis Methods and Applications of Semiconductor Material ZnWO₄ with Multifunctions and Multiconstructions

Wang

et al. 2021

Energy Tech

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At present, nanostructures with excellent morphology have become a research hotspot. With the deepening of research and the rapid development of nanotechnology, nanosemiconductors have also made remarkable progress. In recent years, ZnWO4 in metal tungstates has been widely used in many fields, which is mainly due to its high crystal density, short radiation length, excellent optical properties, good radiation damage resistance, and non‐liquefaction. Therefore, herein, the synthesis methods and applications of ZnWO4 semiconductor materials in recent years are reviewed. First, the crystal structure and characteristics of ZnWO4 are described, and then the latest research progress of ZnWO4 semiconductor materials is summarized. The synthesis methods and contributions to photocatalysis, sensors, electronic materials, and luminescent materials are highlighted. The characteristics of ZnWO4 nanoarrays and their applications in supercapacitors are particularly emphasized, which provide a reference for the development of multifunctional nanoarrays. Finally, the challenges and countermeasures of ZnWO4 semiconductor materials are summarized and prospected. In a word, a new idea and strategy to design and assemble new types of ZnWO4 nanomaterials with multiconstructional systems and multifunctional properties for their practical applications is provided.

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“…[1][2][3][4] Various battery-type electrode materials have been extensively studied. [5][6][7] However, SCs still face low energy density, high cost and other shortcomings. [8,9] SCs could achieve increased energy density by improving the specific capacitance and operating range in accordance with the energy density formula (E = 1 = 2 CV 2 ).…”

Section: Introductionmentioning

confidence: 99%

Leaf‐Like CuCo₂O₄@CuCo₂O₄ Core‐Shell Nanowires as Binder‐Free Electrode for High‐Performance Flexible Supercapacitors

Zhang

Yang

2022

ChemistrySelect

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A reasonable electrode structure is important to improve the performance of supercapacitors. In this work, Leaf-like CuCo 2 O 4 @CuCo 2 O 4 nanowires grown erectly on Ni foam substrate were prepared by two-step hydrothermal method to form a mutually perpendicular core-shell nanostructure. The binder-free CuCo 2 O 4 @CuCo 2 O 4 nanowires were more likely to benefit from multidimensional synergistic effect and better conductivity, revealing a high specific capacitance of 5.86 F cm À 2 at 5 mA cm À 2 and good cycle stability (90.2 % after 8000 cycles). In addition, the SC based on CuCo 2 O 4 @CuCo 2 O 4 battery-type electrodes exhibited good flexible properties. The environment friendly and low cost CuCo 2 O 4 @CuCo 2 O 4 //AC flexible SCs perform a high energy density of 0.35 mWh cm À 2 at a power density of 8 mW cm À 2 . The results indicated that CuCo 2 O 4 @CuCo 2 O 4 core-shell materials have high application value, thus providing a new type of advanced electrode for flexible SCs.

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NiCoP@CoS tree-like core-shell nanoarrays on nickel foam as battery-type electrodes for supercapacitors

Cited by 112 publications

References 57 publications

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Synthesis Methods and Applications of Semiconductor Material ZnWO₄ with Multifunctions and Multiconstructions

Leaf‐Like CuCo₂O₄@CuCo₂O₄ Core‐Shell Nanowires as Binder‐Free Electrode for High‐Performance Flexible Supercapacitors

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NiCoP@CoS tree-like core-shell nanoarrays on nickel foam as battery-type electrodes for supercapacitors

Cited by 112 publications

References 57 publications

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Synthesis Methods and Applications of Semiconductor Material ZnWO4 with Multifunctions and Multiconstructions

Leaf‐Like CuCo2O4@CuCo2O4 Core‐Shell Nanowires as Binder‐Free Electrode for High‐Performance Flexible Supercapacitors

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Product

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Synthesis Methods and Applications of Semiconductor Material ZnWO₄ with Multifunctions and Multiconstructions

Leaf‐Like CuCo₂O₄@CuCo₂O₄ Core‐Shell Nanowires as Binder‐Free Electrode for High‐Performance Flexible Supercapacitors