In situ preparation of MgCo2O4 nanosheets on Ni-foam as a binder-free electrode for high performance hybrid supercapacitors

2018 ◽  
Vol 47 (19) ◽  
pp. 6722-6728 ◽  
Author(s):  
Subbukalai Vijayakumar ◽  
Sadayappan Nagamuthu ◽  
Kwang-Sun Ryu
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
Ni Foam ◽  
Hybrid Supercapacitors ◽  
In Situ Preparation ◽  
Binder Free

MgCo2O4 nanosheets grown on Ni-foam exhibited a maximum specific capacity of 947 C g−1 at 2 A g−1.

A one-step, cost-effective green method to in situ fabricate Ni(OH)2 hexagonal platelets on Ni foam as binder-free supercapacitor electrode materials

2015 ◽  
Vol 3 (5) ◽  
pp. 1953-1960 ◽  
Author(s):  
Lingjie Li ◽  
Jing Xu ◽  
Jinglei Lei ◽  
Jie Zhang ◽  
Frank McLarnon ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Cost Effective ◽  
Ni Foam ◽  
Supercapacitor Electrode ◽  
One Step ◽  
Binder Free ◽  
Supercapacitor Electrode Materials

The Ni(OH)2 hexagonal platelets were in situ fabricated on Ni foam as a binder-free supercapacitor electrode material with high performance and excellent cycling stability by a one-step, cost-effective, green hydrothermal treatment of three-dimensional (3D) Ni foam in a 15 wt% H2O2 aqueous solution.

In situ synthesis of Bi nanoflakes on Ni foam for sodium-ion batteries

2018 ◽  
Vol 54 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Liubin Wang ◽  
Chenchen Wang ◽  
Fujun Li ◽  
Fangyi Cheng ◽  
Jun Chen
Keyword(s):  
High Performance ◽  
In Situ Synthesis ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Replacement Reaction ◽  
Ni Foam ◽  
Binder Free

Bi nanoflakes are in situ produced on Ni foam via a replacement reaction and work as a binder-free anode for high-performance SIBs.

scholarly journals In Situ Binder-Free and Hydrothermal Growth of Nanostructured NiCo2S4/Ni Electrodes for Solid-State Hybrid Supercapacitors

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7114
Author(s):  
M. Mohamed Ismail ◽  
Zhong-Yun Hong ◽  
M. Arivanandhan ◽  
Thomas Chung-Kuang Yang ◽  
Guan-Ting Pan ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrothermal Method ◽  
Negative Electrode ◽  
Ni Foam ◽  
Hybrid Supercapacitors ◽  
Storage Behavior ◽  
Binder Free ◽  
Cbd Method ◽  
Power Densities

Herein, we report a comparison of the electrochemical performance of two kinds of NiCo2S4-based electrodes for solid-state hybrid supercapacitors (HSCs). For the binder-free electrode, NiCo2S4 was grown on Ni foam by the chemical bath deposition (CBD) method. For the binder-using electrode, NiCo2S4 powder was synthesized by the hydrothermal method. FESEM images depicted the hierarchical nanostructure of NiCo2S4 synthesized by the hydrothermal method and uniform distribution of nanostructured NiCo2S4 grown on Ni foam by the CBD method. Half-cell studies of both NiCo2S4 electrodes showed them exhibiting battery-type charge storage behavior. To assemble HSCs, NiCo2S4 and activated carbon were used as a positive and negative electrode, respectively. Electrochemical studies of the HSCs showed that the accessible potential window was wide, up to 2.6 V, through cyclic voltammetry (CV) analysis. Chronopotentiometry (CP) studies revealed that the energy and power densities of binder-using HSC were 51.24 Wh/kg and 13 kW/kg at 1 Ag−1, respectively, which were relatively higher than those of the binder-free HSC. The binder-free HSC showed 52% cyclic stability, relatively higher than that of the binder-using HSC. Both HSCs, with unique benefits and burdens on energy storage performance, are discussed in this work.

scholarly journals Facile in situ growth of ZnO nanosheets standing on Ni foam as binder-free anodes for lithium ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (34) ◽  
pp. 19253-19260 ◽  
Author(s):  
Tianlai Xia ◽  
Yingqian Wang ◽  
Chengkang Mai ◽  
Guangxing Pan ◽  
Ling Zhang ◽  
...  
Keyword(s):  
Transition Metal Oxides ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Ni Foam ◽  
Capacity Retention ◽  
High Specific Capacity ◽  
Zno Nanosheets ◽  
Rate Capacity ◽  
Binder Free

ZnO nanosheets@Ni foam anode showed a high specific capacity, good capacity retention and superior rate capacity. Moreover, other transition metal oxides were also similarly formed on Ni foam, confirming the universality and efficiency of the synthetic route.

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