High-performance flexible supercapacitors with hierarchical structured cathode (NiCo2O4/Au/MnO2) and anode (NiCo2S4/PPy)

Article Energy & Fuels

Fabrication of semi-flexible carbon quantum dots-reinforced polypyrrole (PPy/CQDs) composite electrodes by hybrid electrospray deposition for high-performance energy storage device

Elumalai Dhandapani et al.

Summary: Carbon quantum dots-reinforced polypyrrole composite electrodes were prepared via the hybrid electrospray method, and exhibited superior electrochemical performance in an all-solid-state asymmetric supercapacitor.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2022)

添加到收藏夹

Article Electrochemistry

TiO2 nanoflowers@Au@MnO2 core-shell composite based on modified Ti foil for flexible supercapacitor electrode

Du Huang et al.

Summary: In this study, a flexible supercapacitor electrode with a core-shell structure is prepared, leading to improved specific capacitance and cycling stability. The electrode consists of 3D TiO2 nanoflowers, Au thin film, and MnO2 nanowires, with a porous Ti conductive substrate. The combination of these materials opens up possibilities for developing flexible asymmetric supercapacitors.

ELECTROCHIMICA ACTA (2022)

添加到收藏夹

Article Energy & Fuels

Hydrothermal design of CoMoO4@CoWO4 core-shell heterostructure for flexible all-solid-state asymmetric supercapacitors

Ramzi Nasser et al.

Summary: In this study, a novel CoMoO4@CoWO4 nanorod core-shell heterostructure was designed to enhance the practicality of CoMoO4 as an electrode material. The core-shell structure exhibited high specific capacitance and excellent stability due to the synergistic effect. Furthermore, the supercapacitor device demonstrated high specific energy and power, and was able to illuminate LEDs.

JOURNAL OF ENERGY STORAGE (2022)

添加到收藏夹

Article Chemistry, Physical

A novel hierarchical core-shell structure of NiCo2O4@NiCo-LDH nanoarrays for higher-performance flexible all-solid-state supercapacitor electrode materials

Shengjuan Li et al.

Summary: In this study, a 3D hierarchical NiCo2O4@NiCo-LDH core-shell structure was successfully fabricated on carbon cloth, which exhibited enhanced electrochemical properties, including high areal capacitance, capacity retention rate, and energy density. These findings demonstrate the practical applications of the core-shell structure in the development of novel supercapacitors and energy storage devices.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

添加到收藏夹

Article Chemistry, Physical

Surface modified Ni wire supported flexible asymmetric supercapacitor of Mn3O4//PEDOT-PSS-MWCNT and its solar charging for self-powered Cu-doped ZnO nanorods-based UV photodetector

Prashant Shivaji Shewale et al.

Summary: In this study, the fabrication method and electrochemical performance of wire-shaped supercapacitors were reported. Additionally, a self-powered UV-light detection system was successfully demonstrated by connecting the wire-shaped supercapacitors and a UV photodetector.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

添加到收藏夹

Article Chemistry, Physical

A high-performance flexible energy storage device from biomass-derived porous carbon supported MnCo2O4 nanorods and MnO2 nanoscales

Debika Gogoi et al.

Summary: In this study, a high-performance flexible supercapacitor device was developed, which can provide sustainable and efficient energy for portable and wearable electronics, biomedical implants, and other applications. The device exhibits excellent energy and power delivery, high rate capability, flexibility, and long shelf-life. It is also non-harmful to human health and cost-effective. These attractive properties make it an outstanding candidate for energy storage purposes.

SUSTAINABLE ENERGY & FUELS (2022)

添加到收藏夹

Article Engineering, Electrical & Electronic

CoFe2O4 Nanoparticle Decorated Hierarchical Biomass Derived Porous Carbon Based Nanocomposites for High-Performance All-Solid-State Flexible Asymmetric Supercapacitor Devices

Debika Gogoi et al.

Summary: In this study, a high-performance all-solid-state flexible supercapacitor device was constructed using coconut fiber-derived porous carbon as the anode and a nanocomposite composed of CoFe2O4 nanoparticles immobilized within the pores of porous carbon as the cathode. The device exhibited high energy density, good cycle life, and retained its performance even after physical deformation, demonstrating its potential for green energy-based electrochemical energy storage applications.

ACS APPLIED ELECTRONIC MATERIALS (2022)

添加到收藏夹

Article Materials Science, Ceramics

V2O5 nanosheets assembled on 3D carbon fiber felt as a free-standing electrode for flexible asymmetric supercapacitor with remarkable energy density

Mingyu You et al.

Summary: Supercapacitors are extensively studied for their excellent performance, fast charge-discharge capabilities, and long cycle life. The assembled free-standing asymmetric supercapacitor demonstrates outstanding specific capabilities and stability, showing great potential for practical applications.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Article Engineering, Environmental

Construction of Ta-Cu7S4 negative electrode for high-performance all-solid-state asymmetric supercapacitor

Xuzhao Han et al.

Summary: Developing electronic structure of electrode materials by substituting high-valence metal ions is an effective approach to enhance electro-chemical activity. In this study, Ta-Cu7S4 materials with a unique hollow structure were fabricated as negative electrode materials for solid-state supercapacitors. DFT calculations confirmed that Ta substitution optimized electronic structure, resulting in improved electrical conductivity and more active sites, leading to excellent supercapacitor performances.

CHEMICAL ENGINEERING JOURNAL (2021)

添加到收藏夹

Article Engineering, Environmental

All-solid-state asymmetric supercapacitor with MWCNT-based hollow NiCo2O4 positive electrode and porous Cu2WS4 negative electrode

Vikas Sharma et al.

Summary: The study successfully developed high-performance supercapacitors by rationally designing and combining materials to achieve improved specific capacitance and energy density, as well as demonstrating good performance in terms of power, efficiency, and stability.

CHEMICAL ENGINEERING JOURNAL (2021)

添加到收藏夹

Article Chemistry, Physical

The structure-stabilized Co3O4@Co9S8 core-shell nanorods synthesized by in-situ sulfuration of Co3O4 for high-performance supercapacitors

Xiaojuan Lian et al.

Summary: In this study, Co3O4@Co9S8 core-shell nanorods were designed and prepared by hydrothermal method, showing promising performance as an electrode material with large surface area and efficient ion diffusion path. The hierarchical structure exhibited satisfactory specific capacity, good rate performance, and cycling stability, as well as successfully driving LEDs, indicating exciting application prospects.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

添加到收藏夹

Article Chemistry, Physical

Construction of 2D ZIF-derived hierarchical and hollow NiCo-LDH nanosheet-on-nanosheet arrays on reduced graphene oxideiNi foam for boosted electrochemical energy storage

Zheng Yang et al.

Summary: A NiCoLDH nanosheet-on-nanosheet array electrode with hierarchical and hollow structure was successfully synthesized through a two-step room-temperature method, showing improved specific capacitance and cycling stability. The electrode features abundant electroactive sites, rapid charge transport, and abundant electron pathways, indicating promising applications.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

添加到收藏夹

Article Chemistry, Physical

V2O5/vertically-aligned carbon nanotubes as negative electrode for asymmetric supercapacitor in neutral aqueous electrolyte

Gan Sun et al.

Summary: A composite electrode with a unique three-dimensional hierarchical nanostructure of V2O5/VACNTs was successfully prepared and applied in aqueous ASCs, showing ideal specific capacitance and outstanding cycling stability.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

添加到收藏夹

Article Chemistry, Physical

Uniform phosphorus doped CoWO4@NiWO4 nanocomposites for asymmetric supercapacitors

Wenkang Miao et al.

Summary: Phosphorus-doped NiWO4@CoWO4 nanocomposites were successfully prepared as electrodes for supercapacitors, exhibiting excellent cycling stability, high specific capacitance, and great rate capability. Moreover, an asymmetric supercapacitor assembled with this electrode and activated carbon showed outstanding energy density and power density.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

添加到收藏夹

Article Chemistry, Physical

Sulfur vacancies enriched Nickel-Cobalt sulfides hollow spheres with high performance for All-Solid-State hybrid supercapacitor

Shuai Jia et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

添加到收藏夹

Article Chemistry, Physical

Design of all-solid-state hybrid supercapacitor based on mesoporous CoSnO3@RGO nanorods and B-doped RGO nanosheets grown on Ni foam for energy storage devices of high energy density

T. Kavinkumar et al.

Summary: By introducing CoSnO3 and boron-doped RGO, the research team has successfully designed an advanced hybrid supercapacitor with high energy density and long-term cycling stability.

APPLIED SURFACE SCIENCE (2021)

添加到收藏夹

Article Materials Science, Ceramics

Novel and efficient hybrid supercapacitor of chemically synthesized quaternary 3D nanoflower-like NiCuCo2S4 electrode

Surendra K. Shinde et al.

Summary: In this study, a simple and cost-effective chemical route was employed to obtain a highly stable and efficient NiCuCo2S4 nanocomposite for supercapacitor applications. The composite exhibited a unique nanoflower-like nanostructure, high specific capacity, and superior cycling stability, showing potential for industrial applications.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Article Materials Science, Ceramics

Surface modified zinc ferrite as a carbon-alternative negative electrode for high-energy hybrid supercapacitor

Abhijeet Shinde et al.

Summary: By utilizing a coordination chemistry approach, the nanostructure of zinc ferrite thin films on flexible stainless steel foil was tuned, resulting in materials with excellent electrochemical performance. The use of different zinc salt precursors successfully led to the formation of materials with superior specific capacities.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

A High-Performance Asymmetric Supercapacitor Based on Tungsten Oxide Nanoplates and Highly Reduced Graphene Oxide Electrodes

Muhammad Ashraf et al.

Summary: Tungsten oxide/graphene hybrid materials are promising semiconductors for energy-related applications. An asymmetric supercapacitor (ASC, HRG//m-WO3 ASC) fabricated from m-WO3 nanoplates and HRG shows high specific capacitance, energy density, and cycling stability.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

添加到收藏夹

Article Chemistry, Physical

Electrodeposition of vanadium pentoxide on carbon fiber cloth as a binder-free electrode for high-performance asymmetric supercapacitor

Rajavel Velayutham et al.

Summary: The electrodeposition technique was used to fabricate binder-free spiral rope-like structured V2O5 on carbon fiber cloth, resulting in high performance asymmetrical supercapacitors. The V2O5@CFC demonstrated excellent performance with high areal capacitance, specific energy, and power, making it a suitable choice for supercapacitor applications.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

添加到收藏夹

Article Chemistry, Physical

Temperature-controlled in situ synthesized carbon nanotube-protected vanadium phosphate particle-anchored electrospun carbon nanofibers for high energy density symmetric supercapacitors

Hyoju Kim et al.

Summary: This study presents a novel composite material as a negative electrode material with high capacitance and outstanding stability for energy storage applications. The material exhibited the highest capacitance at a current density of 0.66A g(-1) and exceptional stability after 5000 cycles. The results suggest that this material can be used as a negative electrode material in symmetric supercapacitor devices with ultrahigh energy density.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

Cobalt-Nickel Phosphate Composites for the All-Phosphate Asymmetric Supercapacitor and Oxygen Evolution Reaction

De Wang et al.

Summary: This study focuses on the design of cost-effective multifunctional electromaterials for supercapacitors and oxygen evolution reaction (OER) to enhance their functionalities in energy storage and conversion. Different ratios of cobalt and nickel phosphate composites were synthesized and systematically studied for their capacity and OER properties. The optimal electroconductibility, structural adjustment, electrochemical active sites, and activities for capacity and OER were obtained from the composites with different ratios of Co/Ni, showing potential for improving the practicality of asymmetric supercapacitors using Bi-based electromaterials.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Article Electrochemistry

One-step electrochemical controllable preparation of nickel cobalt sulfide nanosheets and its application in supercapacitors

Xuan Li et al.

Summary: The study demonstrates that by controlling the Co/Ni molar ratio, the structure and performance of nickel-cobalt sulfides can be manipulated. The CNS-3 electrode shows superior specific capacitance, rate capability, and cycling stability, with potential for high-performance supercapacitor electrode materials. The research indicates the promising application of CNS-3 in the development of advanced supercapacitors.

ELECTROCHIMICA ACTA (2021)

添加到收藏夹

Article Chemistry, Physical

Controllable preparation of core-shell Co3O4@CoNiS nanowires for ultra-long life asymmetric supercapacitors

Yuqi Yan et al.

Summary: The hierarchical core-shell nanostructure of Co3O4@CoNiS was successfully synthesized with high electrical conductivity, discharge capacity, and cycle life. An asymmetric supercapacitor (ASC) assembled with this material exhibited high energy density and ultra-stable capacity retention over 20,000 cycles, providing a reference for the preparation of electrode materials with long-term cyclic stability.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

添加到收藏夹

Article Chemistry, Physical

MgCo2O4@NiMn layered double hydroxide core-shell nanocomposites on nickel foam as superior electrode for all-solid-state asymmetric supercapacitors

Zhiqiang Liu et al.

Summary: In this work, MgCo2O4@NiMn layered double hydroxide core-shell structured nanocomposites on Ni foam are synthesized and exhibit excellent electrochemical performance and potential applications in energy storage devices.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

添加到收藏夹

Article Chemistry, Analytical

All-solid-state wire-shaped asymmetric supercapacitor based on binder-free CuO nanowires on copper wire and PPy on carbon fiber electrodes

Ruirong Zhang et al.

Summary: An asymmetric supercapacitor utilizing CuO and PPy was developed, showing high energy density and specific capacitance. The positive electrode consists of CuO nanowires, while the negative electrode is composed of PPy. Assembled with a gel electrolyte, it exhibits excellent stability and potential as a flexible power source for portable electronics.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2021)

添加到收藏夹

Article Chemistry, Physical

Hydroxide ion dependent α-MnO2 enhanced via oxygen vacancies as the negative electrode for high-performance supercapacitors

Yucheng Chen et al.

Summary: This study investigates the applicability and energy storage mechanism of manganese dioxide (MnO2) as a negative electrode material for supercapacitors, comparing different crystalline forms of MnO2 and improving its performance by introducing oxygen vacancies. Experimental and theoretical analysis reveal the unique charge storage process of MnO2 as a negative electrode under alkaline conditions, providing insights for the development of high-performance supercapacitors.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

添加到收藏夹

Article Chemistry, Applied