Biomass-derived wearable energy storage systems based on poplar tree-cotton fibers coupled with binary nickel–cobalt nanostructures

2020 ◽  
Vol 4 (2) ◽  
pp. 643-654 ◽  
Author(s):  
Farzaneh Hekmat ◽  
Husnu Emrah Unalan ◽  
Saeed Shahrokhian
Keyword(s):  
Carbon Nanotubes ◽  
Storage Systems ◽  
Cotton Fibers ◽  
Core Shell ◽  
High Power Density ◽  
Asymmetric Supercapacitors ◽  
Long Cycle Life ◽  
Nickel Cobalt ◽  
Poplar Tree ◽  
Cobalt Nanostructures

We demonstrated symmetric and asymmetric supercapacitors (SSCs and ASCs) based on core/shell-like Ni–Co oxide@cotton//Fe2O3–carbon nanotubes@cotton that are capable of storing a remarkable amount of energy, while retaining a high power density and long cycle life.

Hierarchically 3D Nanoporous Structured Co9S8@Nix:Moy–Se Core–shell Nanowire Arrays Electrode for the High-performance Asymmetric Supercapacitors

2021 ◽  
Author(s):  
Dai Jiu Yi ◽  
Soram Bobby Singh ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Energy Conversion ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Storage Systems ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Good Strategy ◽  
Free Standing ◽  
Asymmetric Supercapacitors

The rational design of free-standing hierarchic core–shell nanoporous architectures is a good strategy for fabricating next-generation electrode materials for application to electrochemical energy conversion/storage systems. Herein, hierarchical core–shell 3D Co9S8@Nix:Moy–Se...

Advanced asymmetric supercapacitors based on CNT@Ni(OH)2 core–shell composites and 3D graphene networks

2015 ◽  
Vol 3 (38) ◽  
pp. 19545-19555 ◽  
Author(s):  
Huan Yi ◽  
Huanwen Wang ◽  
Yuting Jing ◽  
Tianquan Peng ◽  
Yiran Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Nickel Hydroxide ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
High Power Density ◽  
Asymmetric Supercapacitors ◽  
3D Graphene

Asymmetric supercapacitors with CNT@nickel hydroxide nanosheet composites and 3-D graphene networks demonstrated a high energy density (∼44.0 W h kg−1) and high power density (∼16 kW kg−1) in aqueous KOH electrolyte.

scholarly journals High performance asymmetric supercapacitors with ultrahigh energy density based on hierarchical carbon nanotubes@NiO core–shell nanosheets and defect-introduced graphene sheets with hole structure

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7843-7856 ◽  
Author(s):  
Zenghui Qiu ◽  
Dawei He ◽  
Yongsheng Wang ◽  
Xuan Zhao ◽  
Wen Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
High Performance ◽  
Cost Effective ◽  
Graphene Sheets ◽  
Core Shell ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
Hierarchical Carbon ◽  
Hole Structure

In this work, we report a fast and cost-effective cobalt catalyzed gasification strategy to obtain defect-introduced graphene sheets (DGNs) with hole structure.

scholarly journals Overview of Electrode Materials Progressed for Application in Electrochemical Supercapacitors: An Update

2021 ◽  
Vol 33 (5) ◽  
pp. 1039-1050
Author(s):  
Vinaya Jose ◽  
Vismaya Jose ◽  
A. Samson Nesaraj
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Power Density ◽  
Hybrid Materials ◽  
Electrode Materials ◽  
Carbon Quantum Dots ◽  
High Power Density ◽  
Electrochemical Supercapacitors ◽  
Long Cycle Life ◽  
Asymmetric Hybrid

Supercapacitors are the most maintainable energy conservation devices and have pulled in broad consideration due to long cycle life, excellent power density, stability and integrity. As of now, all researchers are concentrating on how the energy density can be improved while retaining high power density, fast charge or discharge and cycling stability. In this review, we look into the most broadly used electrode materials based on carbon nanotubes (CNTs), graphene, activated carbon, carbon quantum dots, porous carbon, metal oxides, conducting polymers, composite hybrid materials, asymmetric hybrid materials, battery type electrode materials, etc. for designing various types of supercapacitors and their characteristic performance. This review would help to understand the recent advancements progressed in electrode materials for applications in electrochemical supercapacitors.

Facile synthesis of 3D hierarchical N-doped graphene nanosheet/cobalt encapsulated carbon nanotubes for high energy density asymmetric supercapacitors

2016 ◽  
Vol 4 (24) ◽  
pp. 9555-9565 ◽  
Author(s):  
Jayaraman Balamurugan ◽  
Tran Duy Thanh ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
High Power ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Facile Synthesis ◽  
Asymmetric Supercapacitors ◽  
Graphene Nanosheet ◽  
Doped Graphene

The 3D NG/Co–NCNT based asymmetric supercapacitors provide high energy density (~88.44 W h kg−1), an ultra-high power density (~17 991 W kg−1 at 56.97 W h kg−1), and outstanding stability (~10 000 times).

3D flower-like binary nickel cobalt oxide decorated coiled carbon nanotubes directly grown on nickel nanocones and binder-free hydrothermal carbons for advanced asymmetric supercapacitors

Nanoscale ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 2901-2915 ◽  
Author(s):  
Farzaneh Hekmat ◽  
Saeed Shahrokhian ◽  
Sajad Rahimi
Keyword(s):  
Carbon Nanotubes ◽  
Renewable Energy ◽  
High Performance ◽  
Leading Edge ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Binder Free ◽  
Power Densities

The development of high performance supercapacitors with high energy densities without sacrificing power densities has always been at the leading edge of the emerging field of renewable energy.

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