A free-standing manganese cobalt sulfide@cobalt nickel layered double hydroxide core–shell heterostructure for an asymmetric supercapacitor

2020 ◽  
Vol 49 (1) ◽  
pp. 196-202 ◽  
Author(s):  
Haoyan Liang ◽  
Tiesong Lin ◽  
Shengyao Wang ◽  
Henan Jia ◽  
Chun Li ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Cobalt Sulfide ◽  
Core Shell ◽  
Asymmetric Supercapacitor ◽  
Free Standing ◽  
Cobalt Nickel ◽  
Double Hydroxide

Rational design of self-supported electrode materials is important to develop high-performance supercapacitors.

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...

Crystal structure of nickel manganese-layered double hydroxide@cobaltosic oxides on nickel foam towards high-performance supercapacitors

CrystEngComm ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 470-477 ◽  
Author(s):  
Huihua Peng ◽  
Chuan Jing ◽  
Jie Chen ◽  
Deyi Jiang ◽  
Xiaoying Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Layered Double Hydroxide ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Nickel Foam ◽  
Double Hydroxide ◽  
Nickel Manganese

Rational design of the crystal structures of electrode materials is considered as an important strategy to construct high-performance supercapacitors.

scholarly journals Tailoring morphology of cobalt–nickel layered double hydroxide via different surfactants for high-performance supercapacitor

2018 ◽  
Vol 5 (9) ◽  
pp. 180867 ◽  
Author(s):  
Bangqing Xiao ◽  
Wenliang Zhu ◽  
Zhong Li ◽  
Jiliang Zhu ◽  
Xiaohong Zhu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Current Density ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Fold Increase ◽  
Electrochemical Performances ◽  
Cathodic Electrodeposition ◽  
Cobalt Nickel ◽  
Double Hydroxide

Tailoring the morphology of cobalt–nickel layered double hydroxide (LDH) electrode material was successfully achieved via the process of cathodic electrodeposition by adding different surfactants (hexamethylenetetramine, dodecyltrimethylammonium bromide (DTAB) or cetyltrimethylammonium bromide). The as-prepared Co 0.75 Ni 0.25 (OH) 2 samples with surfactants exhibited wrinkle-like, cauliflower-like or net-like structures that corresponded to better electrochemical performances than the untreated one. In particular, a specific capacitance of 1209.1 F g −1 was found for the cauliflower-like Co 0.75 Ni 0.25 (OH) 2 electrode material using DTAB as the surfactant at a current density of 1 A g −1 , whose structure boosted ion diffusion to present a good rate ability of 64% with a 50-fold increase in current density from 1 A g −1 to 50 A g −1 . Accordingly, the asymmetric supercapacitor assembled by current LDH electrode and activated carbon electrode showed an energy density as high as 21.3 Wh kg −1 at a power density of 3625 W kg −1 . The relationship between surfactant and electrochemical performance of the LDH electrode materials has been discussed.

Synthesis of hierarchical porous CuO Nanowire@NiCo-layered double hydroxide core-shell structured nanoarrays on copper foam for high-performance supercapacitors

2017 ◽  
Author(s):  
Guo Hengzhi ◽  
Ben Qing ◽  
Shuxing Wu ◽  
Oscar K.S. Hui ◽  
Zalnezhad Erfan
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Three Dimensional ◽  
Core Shell ◽  
Deposition Technique ◽  
Cuo Nanowires ◽  
Copper Foam ◽  
Hierarchical Porous ◽  
Cuo Nanowire ◽  
Double Hydroxide

In this work, a facile potentiostatic deposition technique was used to fabricate a three-dimensional (3D) core-shell structured nanoarray composed of hierarchical porous CuO nanowires@NiCo layered double hydroxide nanosheets (CuO NWAs@NiCo-LDH)...

Fullerene as an efficient hybridization matrix for exploring high-performance layered-double-hydroxide-based electrodes

2019 ◽  
Vol 7 (18) ◽  
pp. 10971-10979 ◽  
Author(s):  
Yeon Hwa Kim ◽  
Xiaoyan Jin ◽  
Seong-Ju Hwang
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Electrode Materials ◽  
Inorganic Solids ◽  
Hybrid Type ◽  
Double Hydroxide

The hybridization of inorganic solids with fullerene (C60) nanosheets provides an effective way to explore high-performance hybrid-type electrode materials.

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