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.

Vacancies-engineered MoO3 and Na+-preinserted MnO2 in-situ grown N-doped graphene nanotubes as electrode materials for high-performance asymmetric supercapacitor

2021 ◽  
Author(s):  
Jian Zhao ◽  
He Cheng ◽  
Huanyu Li ◽  
Yan-Jie Wang ◽  
Qingyan Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Energy ◽  
Cooperative Effect ◽  
Electrochemical Energy Storage ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Doped Graphene ◽  
Power Densities

Developing advanced negative and positive electrode materials for asymmetric supercapacitors (ASCs) as the electrochemical energy storage can enable the device to reach high energy/power densities resulting from the cooperative effect...

Fast lithium-ion storage of Nb2O5 nanocrystals in situ grown on carbon nanotubes for high-performance asymmetric supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 41179-41185 ◽  
Author(s):  
Xiaolei Wang ◽  
Ge Li ◽  
Ricky Tjandra ◽  
Xingye Fan ◽  
Xingcheng Xiao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Ion Storage ◽  
Energy And Power Density

Nanocomposites of Nb2O5 NCs in situ grown on CNTs are successfully developed with excellent rate capability, leading to the successful fabrication of asymmetric supercapacitors with high energy and power density and long-term cycling stability.

A high-performance flexible and weavable asymmetric fiber-shaped solid-state supercapacitor enhanced by surface modifications of carbon fibers with carbon nanotubes

2016 ◽  
Vol 4 (46) ◽  
pp. 18164-18173 ◽  
Author(s):  
Xiaoyu Lu ◽  
Yang Bai ◽  
Ranran Wang ◽  
Jing Sun
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Solid State ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
High Performance ◽  
Negative Electrode ◽  
Surface Modifications ◽  
High Energy ◽  
Power Densities

A carbon fiber-based positive electrode enhanced by CNT modification with NiCo(OH)x and a negative electrode functionalized with activated carbon were prepared. The supercapacitor showed high energy and power densities.

Nickel cobalt oxide/carbon nanotubes hybrid as a high-performance electrocatalyst for metal/air battery

Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 10235-10242 ◽  
Author(s):  
Hui Zhang ◽  
Hang Qiao ◽  
Haiyan Wang ◽  
Nan Zhou ◽  
Jiajie Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Synergistic Effect ◽  
Cobalt Oxide ◽  
High Performance ◽  
Catalytic Performance ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Air Battery

The NiCo2O4/CNTs hybrid was firstly proposed as a high-performance catalyst for ORR process. Because of the synergistic effect, the hybrid exhibited significant improvement of catalytic performance in comparison with the NiCo2O4 or CNTs alone, even outperforming Pt/C.

High-performance nickel cobalt sulfide materials via low-cost preparation for advanced asymmetric supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (48) ◽  
pp. 42633-42642 ◽  
Author(s):  
Shaolan Wang ◽  
Wei Li ◽  
Lipeng Xin ◽  
Ming Wu ◽  
Xiaojie Lou
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt ◽  
Good Cycling Stability ◽  
Asymmetric Device

First report the nickel cobalt sulfides electrode materials through a facile, convenient and low cost coprecipitation method. The as-fabricated asymmetric device exhibits high energy density (44.44 W h kg−1 at 954.14 W kg−1) and good cycling stability.

Hierarchical three-dimensional manganese doped cobalt phosphide nanowire decorated nanosheet cluster arrays for high-performance electrochemical pseudocapacitor electrodes

2018 ◽  
Vol 54 (66) ◽  
pp. 9234-9237 ◽  
Author(s):  
Guilei Zhu ◽  
Lin Yang ◽  
Weiyi Wang ◽  
Min Ma ◽  
Jie Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Electrochemical Performances ◽  
Asymmetric Supercapacitors ◽  
Cobalt Phosphide ◽  
Power Densities

Hierarchical Mn–CoP nanoarray exhibits boosted electrochemical performances for asymmetric supercapacitors with high energy densities of 35.21 and 30.87 W h kg−1 at power densities of 193 and 1939 W kg−1.

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