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.

High performance Ni3S2/3D graphene/nickel foam composite electrode for supercapacitor applications

2021 ◽  
Vol 257 ◽  
pp. 123769
Author(s):  
Rui Li ◽  
Weijie Zhang ◽  
Ming Zhang ◽  
Zhengbin Peng ◽  
Yixuan Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Composite Electrode ◽  
Nickel Foam ◽  
3D Graphene ◽  
Foam Composite ◽  
Supercapacitor Applications

scholarly journals Fabrication of Hierarchical NiMoO4/NiMoO4 Nanoflowers on Highly Conductive Flexible Nickel Foam Substrate as a Capacitive Electrode Material for Supercapacitors with Enhanced Electrochemical Performance

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1143 ◽  
Author(s):  
Anil Yedluri ◽  
Tarugu Anitha ◽  
Hee-Je Kim
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Nickel Foam ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

Hierarchical NiMoO4/NiMoO4 nanoflowers were fabricated on highly conductive flexible nickel foam (NF) substrates using a facile hydrothermal method to achieve rapid charge-discharge ability, high energy density, long cycling lifespan, and higher flexibility for high-performance supercapacitor electrode materials. The synthesized composite electrode material, NF/NiMoO4/NiMoO4 with a nanoball-like NF/NiMoO4 structure on a NiMoO4 surface over a NF substrate, formed a three-dimensional interconnected porous network for high-performance electrodes. The novel NF/NiMoO4/NiMoO4 nanoflowers not only enhanced the large surface area and increased the electrochemical activity, but also provided an enhanced rapid ion diffusion path and reduced the charge transfer resistance of the entire electrode effectively. The NF/NiMoO4/NiMoO4 composite exhibited significantly improved supercapacitor performance in terms of a sustained cycling life, high specific capacitance, rapid charge-discharge capability, high energy density, and good rate capability. Electrochemical analysis of the NF/NiMoO4/NiMoO4 nanoflowers fabricated on the NF substrate revealed ultra-high electrochemical performance with a high specific capacitance of 2121 F g−1 at 12 mA g−1 in a 3 M KOH electrolyte and 98.7% capacitance retention after 3000 cycles at 14 mA g−1. This performance was superior to the NF/NiMoO4 nanoball electrode (1672 F g−1 at 12 mA g−1 and capacitance retention 93.4% cycles). Most importantly, the SC (NF/NiMoO4/NiMoO4) device displayed a maximum energy density of 47.13 W h kg−1, which was significantly higher than that of NF/NiMoO4 (37.1 W h kg−1). Overall, the NF/NiMoO4/NiMoO4 composite is a suitable material for supercapacitor applications.

Microwave preparation of 3D flower-like MnO2/Ni(OH)2/nickel foam composite for high-performance supercapacitors

2017 ◽  
Vol 700 ◽  
pp. 185-190 ◽  
Author(s):  
Fangping Wang ◽  
Qianqian Zhou ◽  
Guifang Li ◽  
Qizhao Wang
Keyword(s):  
High Performance ◽  
Nickel Foam ◽  
Foam Composite

MnO2/graphene/nickel foam composite as high performance supercapacitor electrode via a facile electrochemical deposition strategy

2012 ◽  
Vol 76 ◽  
pp. 127-130 ◽  
Author(s):  
Yong-Qing Zhao ◽  
Dan-Dan Zhao ◽  
Peng-Yi Tang ◽  
Yin-Mei Wang ◽  
Cai-Ling Xu ◽  
...  
Keyword(s):  
Electrochemical Deposition ◽  
High Performance ◽  
Nickel Foam ◽  
Supercapacitor Electrode ◽  
Foam Composite

Sandwich-like reduced graphene oxide wrapped MOF-derived ZnCo2O4–ZnO–C on nickel foam as anodes for high performance lithium ion batteries

2015 ◽  
Vol 3 (43) ◽  
pp. 21569-21577 ◽  
Author(s):  
Zhaoqiang Li ◽  
Longwei Yin
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Nickel Foam ◽  
Lithium Ion ◽  
Excellent Electrochemical Performance ◽  
Reduced Graphene ◽  
Binder Free

A MOF composite GO/Zn–Co–ZIF/nickel foam derived RGO/ZnCo2O4–ZnO–C/Ni sandwich-like anode exhibits excellent electrochemical performance as a binder-free anode for LIBs.

Construction of novel nanocomposite ZnO@CoFe2O4 microspheres grown on nickel foam for high performance electrochemical supercapacitors

2018 ◽  
Vol 10 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Araveeti Eswar Reddy ◽  
Tarugu Anitha ◽  
Chandu V. V. Muralee Gopi ◽  
S. Srinivasa Rao ◽  
Bandari Naresh ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Performance ◽  
Composite Electrode ◽  
Nickel Foam ◽  
Cycling Stability ◽  
Electrochemical Supercapacitors

A ZnO@CoFe2O4 composite electrode exhibits superior specific capacitance and cycling stability than a CoFe2O4 electrode.

scholarly journals Sodium Dodecylbenzene Sulfonate Assisted Electrodeposition of MnO2@C Electrode for High Performance Supercapacitor

2021 ◽  
Author(s):  
Yihan Shi ◽  
Ming Zhang ◽  
Junshan Zhao ◽  
Liu Zhang ◽  
Xumei Cui ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Current Density ◽  
High Performance ◽  
High Current Density ◽  
Nickel Foam ◽  
Chemical Vapor ◽  
Precursor Solution ◽  
Sodium Dodecylbenzene Sulfonate ◽  
Dodecylbenzene Sulfonate

Abstract In this work, MnO2&SDBS electrodes with nano-honeycomb morphology were prepared by ultrasound-assisted electrochemical deposition using sodium dodecylbenzene sulfonate (SDBS) as a surfactant agent. The effect and mechanism of SDBS on the morphology of MnO2 nanomaterials during the preparation of MnO2 by electrochemical anodic oxidation was systematically investigated by varying the content of SDBS in the precursor solution. When the SDBS concentration is 2 g\bulletL-1, the resulting electrode has the best electrochemical performance, and the specific capacitance is up to 407 F\bulletg-1 at the current density of 1000 mAg-1. To further enhance its performance, a carbon coating layer was deposited on the surface of the electrode using a method similar to chemical vapor deposition. Finally, the MnO2&SDBS@C electrode with a three-dimensional net-to-film composite structure with a high specific surface area, hierarchical structure and interconnect with nickel foam supports were obtained. The electrode has excellent electrochemical performance, and the specific capacitance is still up to 289 Fg-1 at a high current density of 5000 mAg-1. Furthermore, the specific capacitance of the electrode was maintained at 76.7% after 5000 cycles of charging and discharging at a current density of 2000 mAg−1.

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