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 copper cobalt sulfide nanobelt arrays for high performance asymmetric supercapacitors

2021 ◽  
Author(s):  
Leiyun Han ◽  
Xilong Liu ◽  
zheng cui ◽  
Yingjie Hua ◽  
Chongtai Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Electrode Materials ◽  
Solvothermal Method ◽  
Morphology Control ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Asymmetric Supercapacitors ◽  
Array Structures

Hierarchical copper cobalt sulfide nanobelt array structures with well-defined morphology control are first reported as high energy density electrode materials for asymmetric supercapacitors using a simple two-step solvothermal method. Through...

Enabling high-performance room-temperature sodium/sulfur batteries with few-layer 2H-MoSe2 embellished nitrogen-doped hollow carbon spheres as polysulfide barrier

2021 ◽  
Author(s):  
Chunwei Dong ◽  
HongYu Zhou ◽  
Bo Jin ◽  
Wang Gao ◽  
Xingyou Lang ◽  
...  
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Electrode Materials ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Widespread Application ◽  
Earth Abundant ◽  
Hollow Carbon ◽  
Sodium Sulfur

Room-temperature sodium/sulfur (RT-Na/S) batteries are of considerable interest for next-generation energy storage systems because of the earth-abundant electrode materials, low cost, and high energy density. However, the widespread application of...

In situ growth of binder-free CNTs@Ni–Co–S nanosheets core/shell hybrids on Ni mesh for high energy density asymmetric supercapacitors

2016 ◽  
Vol 4 (22) ◽  
pp. 8888-8897 ◽  
Author(s):  
Tianquan Peng ◽  
Huan Yi ◽  
Peng Sun ◽  
Yuting Jing ◽  
Ruijing Wang ◽  
...  
Keyword(s):  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Core Shell ◽  
Step Method ◽  
Asymmetric Supercapacitors ◽  
The Core ◽  
Nickel Cobalt ◽  
Binder Free

A facile two-step method has been developed to synthesize 3D core/shell-structured composites (CNTs@Ni–Co–S) composed of ternary nickel cobalt sulfide nanosheets (Ni–Co–S) as the shell and carbon nanotubes (CNTs) as the core on a flexible Ni mesh (Ni@CNTs@Ni–Co–S).

scholarly journals Supercapacitor Performance of Nickel-Cobalt Sulfide Nanotubes Decorated Using Ni Co-Layered Double Hydroxide Nanosheets Grown in Situ on Ni Foam

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 584 ◽  
Author(s):  
Chen Xin ◽  
Li Ang ◽  
Farayi Musharavati ◽  
Fadi Jaber ◽  
Li Hui ◽  
...  
Keyword(s):  
Electrode Materials ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Cobalt Hydroxide ◽  
Ni Foam ◽  
Practical Applications ◽  
Nickel Cobalt ◽  
Double Hydroxide

In this study, to fabricate a non-binder electrode, we grew nickel–cobalt sulfide (NCS) nanotubes (NTs) on a Ni foam substrate using a hydrothermal method through a two-step approach, namely in situ growth and an anion-exchange reaction. This was followed by the electrodeposition of double-layered nickel-cobalt hydroxide (NCOH) over a nanotube-coated substrate to fabricate NCOH core-shell nanotubes. The final product is called NCS@NCOH herein. Structural and morphological analyses of the synthesized electrode materials were conducted via SEM and XRD. Different electrodeposition times were selected, including 10, 20, 40, and 80 s. The results indicate that the NCSNTs electrodeposited with NCOH nanosheets for 40 s have the highest specific capacitance (SC), cycling stability (2105 Fg−1 at a current density of 2 Ag−1), and capacitance retention (65.1% after 3,000 cycles), in comparison with those electrodeposited for 10, 20, and 80 s. Furthermore, for practical applications, a device with negative and positive electrodes made of active carbon and NCS@NCOH was fabricated, achieving a high-energy density of 23.73 Whkg−1 at a power density of 400 Wkg−1.

A High-Performance Free-Standing Zn Anode for Flexible Zinc-Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Chenxi Gao ◽  
Jiawei Wang ◽  
Yuan Huang ◽  
Zixuan Li ◽  
Jiyan Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Free Standing ◽  
Energy Device ◽  
Zn Anode ◽  
Significant Attention

Zinc-ion batteries (ZIBs) have attracted significant attention owing to their high safety, high energy density, and low cost. ZIBs have been studied as a potential energy device for portable and...

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...

A three-dimensional graphene framework-enabled high-performance stretchable asymmetric supercapacitor

2018 ◽  
Vol 6 (4) ◽  
pp. 1802-1808 ◽  
Author(s):  
Ke Li ◽  
Yanshan Huang ◽  
Jingjing Liu ◽  
Mansoor Sarfraz ◽  
Phillips O. Agboola ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Superior Cycling Stability

Three-dimensional graphene frameworks enable the development of stretchable asymmetric supercapacitors with a record high energy density of 77.8 W h kg−1, and also excellent stretchability and superior cycling stability.

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