A high-performance asymmetric supercapacitor based on Ni3S2-coated NiSe arrays as positive electrode

2019 ◽  
Vol 43 (5) ◽  
pp. 2389-2399 ◽  
Author(s):  
Beirong Ye ◽  
Chao Gong ◽  
Miaoliang Huang ◽  
Jinhua Ge ◽  
Leqing Fan ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Performance ◽  
High Performance ◽  
Composite Electrode ◽  
Positive Electrode ◽  
Asymmetric Supercapacitor

Cotton-like Ni3S2-coated NiSe rod composite electrode was synthesized by cyclic voltammetry electrodeposition with satisfactory electrochemical performance.

Electrochemical performance of an asymmetric supercapacitor based on graphene and cobalt molybdate electrodes

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16319-16327 ◽  
Author(s):  
Ganesh Kumar Veerasubramani ◽  
Karthikeyan Krishnamoorthy ◽  
Sang Jae Kim
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
Negative Electrode ◽  
Positive Electrode ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene ◽  
Cobalt Molybdate

In this article, we report the fabrication and electrochemical performance of asymmetric supercapacitors (ASCs) based on a reduced graphene oxide (rGO) negative electrode and a cobalt molybdate (CoMoO4) positive electrode.

Fabrication of graphene/copper–nickel foam composite for high performance supercapacitors

2018 ◽  
Vol 42 (12) ◽  
pp. 9455-9462 ◽  
Author(s):  
Guoxiao Liu ◽  
Shixiang Lu ◽  
Wenguo Xu ◽  
Ge He ◽  
Yu Zheng ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Composite Electrode ◽  
Nickel Foam ◽  
Annealing Process ◽  
Copper Nickel ◽  
Foam Composite

An rGO/PDA/CNF composite electrode is fabricated by an immersing and annealing process and exhibits superior electrochemical performance.

A high-performance asymmetric supercapacitor based on vanadyl phosphate/carbon nanocomposites and polypyrrole-derived carbon nanowires

Nanoscale ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 3709-3719 ◽  
Author(s):  
Ningna Chen ◽  
Jinhua Zhou ◽  
Guoyin Zhu ◽  
Qi Kang ◽  
Hongmei Ji ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Asymmetric Supercapacitor ◽  
Vanadyl Phosphate ◽  
Carbon Nanocomposites ◽  
Excellent Electrochemical Performance ◽  
N Doping ◽  
C And N ◽  
Carbon Nanowires

A layered microstructure of VOPO4/C and N-doping of PCN ensure excellent electrochemical performance.

Bimetallic FeNi-MIL-88-derived NiFe2O4@Ni–Mn LDH composite electrode material for a high performance asymmetric supercapacitor

2020 ◽  
Vol 49 (29) ◽  
pp. 10203-10211 ◽  
Author(s):  
Shaobin Li ◽  
Jing Pan ◽  
Fengbo Li ◽  
Li Zhang ◽  
Dongfeng Chai ◽  
...  
Keyword(s):  
Electrode Material ◽  
Potential Application ◽  
High Performance ◽  
Composite Electrode ◽  
Asymmetric Supercapacitor

A novel NiFe2O4@Ni–Mn LDH/NF composite was synthesized by deriving bimetallic FeNi-MIL-88, and has potential application as a high-performance supercapacitor.

scholarly journals High Performance Asymmetric Supercapacitor Based on Hierarchical Carbon Cloth In Situ Deposited with h-WO3 Nanobelts as Negative Electrode and Carbon Nanotubes as Positive Electrode

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1195
Author(s):  
Jianhao Lin ◽  
Xusheng Du
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Hydrothermal Reaction ◽  
Synthesis Method ◽  
Negative Electrode ◽  
Current Collector ◽  
Cell System ◽  
Positive Electrode ◽  
Carbon Cloth ◽  
Asymmetric Supercapacitor

Urchin-like tungsten oxide (WO3) microspheres self-assembled with nanobelts are deposited on the surface of the hydrophilic carbon cloth (CC) current collector via hydrothermal reaction. The WO3 nanobelts in the urchin-like microspheres are in the hexagonal crystalline phase, and their widths are around 30–50 nm. The resulted hierarchical WO3 / CC electrode exhibits a capacitance of 3400 mF / cm2 in H2SO4 electrolyte in the voltage window of −0.5 ~ 0.2 V, which makes it an excellent negative electrode for asymmetric supercapacitors. To improve the capacitive performance of the positive electrode and make it comparable with that of the WO3 / CC electrode, both the electrode material and the electrolyte have been carefully designed and prepared. Therefore, the hydrophilic CC is further coated with carbon nanotubes (CNTs) to create a hierarchical CNT / CC electrode via a convenient flame synthesis method, and a redox-active electrolyte containing an Fe2+ / Fe 3+ couple is introduced into the half-cell system as well. As a result, the high performance of the asymmetric supercapacitor assembled with both the asymmetric electrodes and electrolytes has been realized. It exhibits remarkable energy density as large as 403 μW h / cm2 at 15 mW / cm2 and excellent cyclic stability after 10,000 cycles.

Development of carbon coated NiS2 as positive electrode material for high performance asymmetric supercapacitor

2019 ◽  
Vol 177 ◽  
pp. 107373 ◽  
Author(s):  
Souvik Ghosh ◽  
J. Sharath Kumar ◽  
Naresh Chandra Murmu ◽  
R. Sankar Ganesh ◽  
Hiroshi Inokawa ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Positive Electrode ◽  
Asymmetric Supercapacitor ◽  
Positive Electrode Material ◽  
Carbon Coated

Hierarchical NiCo2O4@NiMoO4 core–shell hybrid nanowire/nanosheet arrays for high-performance pseudocapacitors

2015 ◽  
Vol 3 (27) ◽  
pp. 14348-14357 ◽  
Author(s):  
Ding Cheng ◽  
Yefeng Yang ◽  
Jinlei Xie ◽  
Changjiang Fang ◽  
Guoqing Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Core Shell ◽  
Asymmetric Supercapacitor ◽  
Nanosheet Arrays

Hierarchical NiCo2O4@NiMoO4 core–shell nanowire/nanosheet arrays were successfully fabricated and assembled in an asymmetric supercapacitor device with outstanding electrochemical performance.

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